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      "body": "Thanks =)",
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      "body": "Nunca habia leido sobre agujeros negros, pero esta bastante interesante tu post, upvote y reesteem por aca",
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      "body": "@@ -186,16 +186,28 @@\n g%3E%3C/h1%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EEste \n@@ -709,24 +709,24 @@\n rvices.%3C/p%3E%0A\n-\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n@@ -986,36 +986,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Ch1%3E%3Cstrong%3E\n@@ -1042,16 +1042,28 @@\n g%3E%3C/h1%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EPara \n@@ -2048,16 +2048,28 @@\n g%3E%3C/h1%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ELas q\n@@ -3960,28 +3960,16 @@\n as:%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cul%3E%0A  %3C\n@@ -4083,28 +4083,16 @@\n %3E%0A%3C/ul%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ESi ju\n@@ -4432,36 +4432,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EShell And\n@@ -4513,36 +4513,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ENos hacem\n@@ -4605,36 +4605,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EMontamos \n@@ -4753,36 +4753,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EDeber%C3%ADa m\n@@ -5563,28 +5563,16 @@\n de%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cblockqu\n@@ -5677,36 +5677,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EEl cambia\n@@ -5788,36 +5788,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EHasta ac%C3%A1\n@@ -5960,36 +5960,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EMovemos l\n@@ -6129,36 +6129,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EAhora acc\n@@ -6250,28 +6250,16 @@\n br%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EMovem\n@@ -6458,36 +6458,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ESeteamos \n@@ -6649,36 +6649,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EAnd reboo\n@@ -6729,36 +6729,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ELuego deb\n@@ -6897,32 +6897,8 @@\n /p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ED\n@@ -6988,28 +6988,16 @@\n ite%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ESalud\n",
      "json_metadata": "{\"tags\":[\"android\",\"ssl-unpinning\",\"burp\",\"certificate\"],\"image\":[\"https://i.imgur.com/NTBwtpa.png\",\"https://i.imgur.com/wXcWh89.png\",\"https://i.imgur.com/ghte68y.png\"],\"links\":[\"https://d.tube/#!/v/opensylar/v5njj40b\",\"https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn\",\"https://portswigger.net\",\"https://repo.xposed.info/\",\"https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/\",\"https://netfilter.org/\"],\"app\":\"steemit/0.1\",\"format\":\"html\"}"
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}

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  "timestamp": "2018-06-01T00:15:30",
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      "parent_author": "",
      "parent_permlink": "android",
      "author": "opensylar",
      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -4231,16 +4231,29 @@\n rto \n+%3Ccode%3E\n TCP 5555\n+%3C/code%3E\n  si \n@@ -4424,16 +4424,40 @@\n kquote%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EShell\n@@ -4517,16 +4517,40 @@\n kquote%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ENos h\n@@ -4621,16 +4621,40 @@\n kquote%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EMonta\n@@ -5201,32 +5201,8 @@\n /p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cblo\n@@ -5400,36 +5400,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EAhora nec\n@@ -5757,44 +5757,8 @@\n /p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EE\n@@ -5782,36 +5782,24 @@\n mbre...%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cblockquote%3E\n@@ -6040,32 +6040,44 @@\n te%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EMovemos las c\n@@ -6221,32 +6221,44 @@\n te%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EAhora accedem\n@@ -6350,32 +6350,44 @@\n te%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EMovemos el ce\n@@ -6578,24 +6578,36 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ESeteamos \n@@ -6781,24 +6781,36 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EAnd reboo\n@@ -6873,24 +6873,36 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ELuego deb\n@@ -7069,24 +7069,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n+\n %3Cp%3EDespu%C3%A9s d\n@@ -7176,36 +7176,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3ESaludos.%3C\n",
      "json_metadata": "{\"tags\":[\"android\",\"ssl-unpinning\",\"burp\",\"certificate\"],\"image\":[\"https://i.imgur.com/NTBwtpa.png\",\"https://i.imgur.com/wXcWh89.png\",\"https://i.imgur.com/ghte68y.png\"],\"links\":[\"https://d.tube/#!/v/opensylar/v5njj40b\",\"https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn\",\"https://portswigger.net\",\"https://repo.xposed.info/\",\"https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/\",\"https://netfilter.org/\"],\"app\":\"steemit/0.1\",\"format\":\"html\"}"
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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -2149,154 +2149,8 @@\n %3C/a%3E\n-,  %3Ca href=%22https://secdev.org/projects/scapy%22%3EScapy%3C/a%3E, %3Ca href=%22https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project%22%3Ezproxy%3C/a%3E\n %3C/li\n@@ -2312,17 +2312,8 @@\n hark\n- - tshark\n %3C/a%3E\n",
      "json_metadata": "{\"tags\":[\"android\",\"ssl-unpinning\",\"burp\",\"certificate\"],\"image\":[\"https://i.imgur.com/NTBwtpa.png\",\"https://i.imgur.com/wXcWh89.png\",\"https://i.imgur.com/ghte68y.png\"],\"links\":[\"https://d.tube/#!/v/opensylar/v5njj40b\",\"https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn\",\"https://portswigger.net\",\"https://repo.xposed.info/\",\"https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/\",\"https://netfilter.org/\"],\"app\":\"steemit/0.1\",\"format\":\"html\"}"
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  "timestamp": "2018-06-01T00:11:42",
  "op": [
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      "parent_author": "",
      "parent_permlink": "android",
      "author": "opensylar",
      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -4866,16 +4866,28 @@\n %3C/p%3E%0A%3Cp%3E\n-\n \n+%3Cbr%3E%3C/p%3E%0A%3Cp%3E\n Deber%C3%ADa \n@@ -5071,30 +5071,18 @@\n %0A%3Cp%3E\n-!%5Bgen-der-burp-suite%5D(\n+%3Cimg src=%22\n http\n@@ -5104,25 +5104,27 @@\n /wXcWh89.png\n-)\n+%22/%3E\n %3C/p%3E%0A%3Cp%3E%3Cbr%3E\n@@ -5292,32 +5292,32 @@\n r%3E%3C/p%3E%0A%3C\n-p%3E%60%60%60bash%3C/p%3E%0A%3Cp\n+blockquote%3E%3Ccode\n %3Eopenssl\n@@ -5379,28 +5379,33 @@\n rt.pem%3C/\n-p%3E%0A%3Cp%3E%60%60%60%3C/p\n+code%3E%3C/blockquote\n %3E%0A%3Cp%3E%3Cbr\n@@ -5417,24 +5417,18 @@\n %0A%3Cp%3E\n-!%5Bgen-pem-cert%5D(\n+%3Cimg src=%22\n http\n@@ -5450,25 +5450,27 @@\n /NTBwtpa.png\n-)\n+%22/%3E\n %3C/p%3E%0A%3Cp%3E%3Cbr%3E\n@@ -5638,17 +5638,17 @@\n es deber\n-a\n+%C3%A1\n s cambia\n@@ -5649,19 +5649,22 @@\n cambiar \n-%60%60%60\n+%3Ccode%3E\n subject_\n@@ -5671,19 +5671,23 @@\n hash_old\n-%60%60%60\n+%3C/code%3E\n   a\n@@ -5687,19 +5687,22 @@\n  a \n-%60%60%60\n+%3Ccode%3E\n subject_\n@@ -5705,30 +5705,22 @@\n ect_hash\n-%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr\n+%3C/code\n %3E%3C/p%3E%0A%3Cp\n@@ -5734,36 +5734,24 @@\n p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp\n+blockquote%3E%3Ccode\n %3Eope\n@@ -5816,28 +5816,33 @@\n ead -1%3C/\n-p%3E%0A%3Cp%3E%60%60%60%3C/p\n+code%3E%3C/blockquote\n %3E%0A%3Cp%3E%3Cbr\n@@ -5931,30 +5931,42 @@\n %3C/p%3E%0A%3Cp%3E\n-%60%60%60bash%3C/p%3E%0A%3Cp\n+%3Cbr%3E%3C/p%3E%0A%3Cblockquote%3E%3Ccode\n %3Ecp -v c\n@@ -5989,76 +5989,27 @@\n 75.0\n- %3C/p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+%3C/code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -6107,218 +6107,93 @@\n tivo\n-%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3ENecesitamos acceso root hacia nuestro dispositivo%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp%3Eadb root%3C/p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+, para ello necesitamos acceso root%3C/p%3E%0A%3Cblockquote%3E%3Ccode%3Eadb root%3C/code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -6289,60 +6289,24 @@\n p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp\n+blockquote%3E%3Ccode\n %3Eadb\n@@ -6344,32 +6344,25 @@\n p/%3C/\n-p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -6433,72 +6433,53 @@\n p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp%3Eadb shell%3C/p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+blockquote%3E%3Ccode%3Eadb shell%3C/code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -6583,60 +6583,24 @@\n p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp\n+blockquote%3E%3Ccode\n %3E# m\n@@ -6673,56 +6673,25 @@\n .0%3C/\n-p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -6794,36 +6794,24 @@\n p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp\n+blockquote%3E%3Ccode\n %3E# c\n@@ -6864,203 +6864,105 @@\n .0%3C/\n-p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3EAnd reboot...%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp%3E# reboot%3C/p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+code%3E%3C/blockquote%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3EAnd reboot...%3C/p%3E%0A%3Cblockquote%3E%3Ccode%3E# reboot%3C/code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -7063,50 +7063,17 @@\n %3Cp%3E%3C\n-br%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E!%5Bkeystore-nougat%5D(\n+img src=%22\n http\n@@ -7099,17 +7099,19 @@\n e68y.png\n-)\n+%22/%3E\n %3C/p%3E%0A%3Cp%3E\n",
      "json_metadata": "{\"tags\":[\"android\",\"ssl-unpinning\",\"burp\",\"certificate\"],\"image\":[\"https://i.imgur.com/NTBwtpa.png\",\"https://i.imgur.com/wXcWh89.png\",\"https://i.imgur.com/ghte68y.png\"],\"links\":[\"https://d.tube/#!/v/opensylar/v5njj40b\",\"https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn\",\"https://portswigger.net\",\"https://secdev.org/projects/scapy\",\"https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project\",\"https://repo.xposed.info/\",\"https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/\",\"https://netfilter.org/\"],\"app\":\"steemit/0.1\",\"format\":\"html\"}"
    }
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}

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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -4859,36 +4859,24 @@\n %3Cp%3E%3Cbr%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EDeber%C3%ADa m\n@@ -4909,34 +4909,74 @@\n  este..%3C/p%3E%0A%3Cp%3E%3C\n-br\n+img src=%22https://i.imgur.com/NTBwtpa.png%22/\n %3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n",
      "json_metadata": "{\"tags\":[\"android\",\"ssl-unpinning\",\"burp\",\"certificate\"],\"image\":[\"https://i.imgur.com/NTBwtpa.png\",\"https://i.imgur.com/wXcWh89.png\",\"https://i.imgur.com/ghte68y.png\"],\"links\":[\"https://d.tube/#!/v/opensylar/v5njj40b\",\"https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn\",\"https://portswigger.net\",\"https://secdev.org/projects/scapy\",\"https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project\",\"https://repo.xposed.info/\",\"https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/\",\"https://netfilter.org/\"],\"app\":\"steemit/0.1\",\"format\":\"html\"}"
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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -4458,16 +4458,64 @@\n br%3E%3C/p%3E%0A\n+%3Cp%3ENos conectamos a nuestro Android en VBox%3C/p%3E%0A\n %3Cblockqu\n@@ -4558,32 +4558,53 @@\n e%3E%3C/blockquote%3E%0A\n+%3Cp%3EShell Android%3C/p%3E%0A\n %3Cblockquote%3E%3Ccod\n@@ -4635,16 +4635,55 @@\n kquote%3E%0A\n+%3Cp%3ENos hacemos de permisos de root%3C/p%3E%0A\n %3Cblockqu\n@@ -4719,32 +4719,8 @@\n te%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EM\n@@ -4786,29 +4786,26 @@\n ..%3C/p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp\n+blockquote\n %3E%3Ccode%3Em\n@@ -4839,17 +4839,26 @@\n /code%3E%3C/\n-p\n+blockquote\n %3E%0A%3Cp%3E%3Cbr\n@@ -4929,60 +4929,8 @@\n /p%3E%0A\n-%3Cp%3E%3Cimg src=%22https://i.imgur.com/NTBwtpa.png%22/%3E%3C/p%3E%0A\n %3Cp%3E%3C\n",
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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -716,28 +716,16 @@\n %3C/p%3E%0A%3Cp%3E\n-%3Cbr%3E%3C/p%3E%0A%3Cp%3E\n \n+\n La aplic\n@@ -1726,28 +1726,16 @@\n br%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EComo \n@@ -2000,32 +2000,8 @@\n /p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Ch1%3E\n@@ -2082,36 +2082,24 @@\n fueron:%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cul%3E%0A  %3Cli%3E%3C\n@@ -2922,32 +2922,8 @@\n /p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EP\n@@ -3330,50 +3330,9 @@\n roid\n- %3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E\n+.\n %3C/p%3E\n@@ -3511,28 +3511,16 @@\n br%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EUno d\n",
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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -43,20 +43,17 @@\n rlo \n-%5Bdesde ac%C3%A1%5D(\n+%3Ca href=%22\n http\n@@ -63,28 +63,53 @@\n /d.tube/\n-)%3C/p%3E%0A%3Cp%3E%3Cbr\n+#!/v/opensylar/v5njj40b%22%3Edesde ac%C3%A1%3C/a\n %3E%3C/p%3E%0A%3Cp\n@@ -159,32 +159,37 @@\n p%3E%0A%3C\n-p%3E# Nota:%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+h1%3E%3Cstrong%3ENota:%3C/strong%3E%3C/h1\n %3E%0A%3Cp\n@@ -428,37 +428,17 @@\n bre \n-%5BBimii Boo Play & Learn%5D(\n+%3Ca href=%22\n http\n@@ -503,17 +503,48 @@\n andlearn\n-)\n+%22%3EBimii Boo Play & Learn%3C/a%3E\n  los pas\n@@ -1003,32 +1003,27 @@\n r%3E%3C/p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E# \n+h1%3E%3Cstrong%3E\n Como fun\n@@ -1045,33 +1045,19 @@\n y:%3C/\n-p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+strong%3E%3C/h1\n %3E%0A%3Cp\n@@ -1395,28 +1395,16 @@\n br%3E%3C/p%3E%0A\n-%3Cp%3E%3Cbr%3E%3C/p%3E%0A\n %3Cp%3EResul\n@@ -2045,32 +2045,27 @@\n r%3E%3C/p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E# \n+h1%3E%3Cstrong%3E\n Herramie\n@@ -2067,37 +2067,35 @@\n ramientas:%3C/\n-p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+strong%3E%3C/h1\n %3E%0A%3Cp%3ELas que\n@@ -2151,25 +2151,27 @@\n p%3E%0A%3C\n-p%3E* %5BBurp suite%5D(\n+ul%3E%0A  %3Cli%3E%3Ca href=%22\n http\n@@ -2193,19 +2193,41 @@\n .net\n-), %5BScapy%5D(\n+%22%3EBurp suite%3C/a%3E,  %3Ca href=%22\n http\n@@ -2259,20 +2259,30 @@\n capy\n-),%5B zproxy%5D(\n+%22%3EScapy%3C/a%3E, %3Ca href=%22\n http\n@@ -2343,230 +2343,263 @@\n ject\n-)%3C/p%3E%0A%3Cp%3E* %5BXposed framework%5D(https://repo.xposed.info/)%3C/p%3E%0A%3Cp%3E* %5BWireshark - tshark%5D(https://www.wireshark.org/), %5Btcpdump%5D(https://www.tcpdump.org/)%3C/p%3E%0A%3Cp%3E* %5BIptables%5D(https://netfilter.org/)%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+%22%3Ezproxy%3C/a%3E%3C/li%3E%0A  %3Cli%3E%3Ca href=%22https://repo.xposed.info/%22%3EXposed framework%3C/a%3E%3C/li%3E%0A  %3Cli%3E%3Ca href=%22https://www.wireshark.org/), %5Btcpdump%5D(https://www.tcpdump.org/%22%3EWireshark - tshark%3C/a%3E%3C/li%3E%0A  %3Cli%3E%3Ca href=%22https://netfilter.org/%22%3EIptables%3C/a%3E%3C/li%3E%0A%3C/ul\n %3E%0A%3Cp\n@@ -3931,20 +3931,27 @@\n r%3E%3C/p%3E%0A%3C\n-p%3E# \n+h1%3E%3Cstrong%3E\n Play Har\n@@ -3954,29 +3954,27 @@\n  Hard:%3C/\n-p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+strong%3E%3C/h1\n %3E%0A%3Cp%3ETod\n@@ -4245,24 +4245,18 @@\n p%3E%0A%3C\n-p%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E* \n+ul%3E%0A  %3Cli%3E\n Andr\n@@ -4281,24 +4281,26 @@\n 7.1.2)%3C/\n-p%3E%0A%3Cp%3E* \n+li%3E%0A  %3Cli%3E\n Android \n@@ -4314,30 +4314,34 @@\n ls%3C/\n-p%3E%0A%3Cp%3E* Java%3C/p%3E%0A%3Cp%3E* \n+li%3E%0A  %3Cli%3EJava%3C/li%3E%0A  %3Cli%3E\n Open\n@@ -4353,29 +4353,24 @@\n ackage%3C/\n-p%3E%0A%3Cp%3E%3Cbr%3E%3C/p\n+li%3E%0A%3C/ul\n %3E%0A%3Cp%3E%3Cbr\n@@ -4479,19 +4479,22 @@\n l  \n-%60%60%60\n+%3Ccode%3E\n Port For\n@@ -4501,19 +4501,23 @@\n dwarding\n-%60%60%60\n+%3C/code%3E\n  al puer\n@@ -4596,32 +4596,32 @@\n r%3E%3C/p%3E%0A%3C\n-p%3E%60%60%60bash%3C/p%3E%0A%3Cp\n+blockquote%3E%3Ccode\n %3Eadb con\n@@ -4640,147 +4640,114 @@\n .1%3C/\n-p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp%3Eadb shell%3C/p%3E%0A%3Cp%3E%60%60%60%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E%0A%3Cp%3E%60%60%60bash%3C/p%3E%0A%3Cp%3Esu%3C/p%3E%0A%3Cp%3E%60%60%60%3C/p\n+code%3E%3C/blockquote%3E%0A%3Cblockquote%3E%3Ccode%3Eadb shell%3C/code%3E%3C/blockquote%3E%0A%3Cblockquote%3E%3Ccode%3Esu%3C/code%3E%3C/blockquote\n %3E%0A%3Cp\n@@ -4853,30 +4853,21 @@\n %3C/p%3E%0A%3Cp%3E\n-%60%60%60bash%3C/p%3E%0A%3Cp\n+%3Ccode\n %3Emount -\n@@ -4884,33 +4884,41 @@\n rw /system%3C/\n+code%3E%3C/\n p%3E%0A%3Cp%3E\n-%60%60%60\n+%3Cbr%3E\n %3C/p%3E%0A%3Cp%3E%3Cbr%3E\n@@ -4979,24 +4979,18 @@\n %0A%3Cp%3E\n-!%5Bworkflow-adb%5D(\n+%3Cimg src=%22\n http\n@@ -5008,33 +5008,35 @@\n .com/NTBwtpa.png\n-)\n+%22/%3E\n %3C/p%3E%0A%3Cp%3E%3Cbr%3E%3C/p%3E\n",
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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "@@ -70,31 +70,8 @@\n ube/\n-#!/v/opensylar/v5njj40b\n )%3C/p\n",
      "json_metadata": "{\"tags\":[\"android\",\"ssl-unpinning\",\"burp\",\"certificate\"],\"image\":[\"https://i.imgur.com/NTBwtpa.png\",\"https://i.imgur.com/wXcWh89.png\",\"https://i.imgur.com/ghte68y.png\"],\"links\":[\"https://d.tube/\",\"https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn\",\"https://portswigger.net\",\"https://secdev.org/projects/scapy\",\"https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project\",\"https://repo.xposed.info/\",\"https://www.wireshark.org/\",\"https://www.tcpdump.org/\",\"https://netfilter.org/\"],\"app\":\"steemit/0.1\",\"format\":\"html\"}"
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  "timestamp": "2018-05-31T23:29:09",
  "op": [
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    {
      "parent_author": "",
      "parent_permlink": "android",
      "author": "opensylar",
      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "<html>\n<p>Te gusta mas en vídeo? puedes verlo [desde acá](https://d.tube/#!/v/opensylar/v5njj40b)</p>\n<p><br></p>\n<p><br></p>\n<p>Hola Steemiters,</p>\n<p><br></p>\n<p># Nota:</p>\n<p><br></p>\n<p>Este post es un complemento y referencia de BBHV (Bimi Boo Hack Version), lo que busca este post es enumerar los vectores de ataque para hacer reversing a una APK de Android, en este caso se la hecho las pruebas se han realizado sobre [Bimii Boo Play &amp; Learn](https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn) los pasos acá aplicados son validos para cualquier APK que utilice certificados para verificar la integridad de los datos recibidos y enviados a un webservices.</p>\n<p><br></p>\n<p><br></p>\n<p>La aplicación que se a utilizado para hacer la demo tiene una versión limitada (free) y una versión completa (versión paga, usa la pasarela Google Pay) obviamente luego hecho el pago se puede utilizar la versión completa de esta app.</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p># Como funciona Google Pay:</p>\n<p><br></p>\n<p><br></p>\n<p>Para no entrar en detalles y explicarlo vagamente, cuando se inicia un pago vía Google Pay se envía el ID de la aplicación esta recibe los datos, luego solicita el medio de pago (crédito en Google Pay, TDC, etc) verifica que sean validos y tengan fondos, envía los datos a wallet.google.com y deniega o concede la compra.</p>\n<p><br></p>\n<p><br></p>\n<p>Resulta obvio si se lograran interceptar estos datos y puedan modificarse, saldo/fondos disponible, validez del medio de pago, cualquier pudiera hacer compras arbitrarias sin tener fondos en sus cuentas o montar un webservice personalizado y redirigir el trafico que se envía - recibe a play.google.com o wallet.google.com.</p>\n<p><br></p>\n<p><br></p>\n<p>Como era de esperarse este tipo de comunicación entre cliente y servidor se resuelven bajo HTTPs, por lo tanto debemos romperlo para luego onfly modificar datos a nuestro gusto, las herramientas y la documentación están porque no usarlas?</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p># Herramientas:</p>\n<p><br></p>\n<p>Las que se me vinieron a la mente, fueron:</p>\n<p><br></p>\n<p>* [Burp suite](https://portswigger.net), [Scapy](https://secdev.org/projects/scapy),[ zproxy](https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project)</p>\n<p>* [Xposed framework](https://repo.xposed.info/)</p>\n<p>* [Wireshark - tshark](https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/)</p>\n<p>* [Iptables](https://netfilter.org/)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Pero no todo es descargar, utilizar y modificar cabeceras, al intentar interceptar trafico entre los webservices de Google y nuestro Android no siempre es tarea fácil, a media que las versiones de Android sean mas recientes la dificultad va aumentando, en versiones superiores a 4.0 no vale con solo un certificado auto firmado, se requiere algo mas.</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Para versiones recientes (y no tan recientes), se necesita &nbsp;que el certificado sea validado por una CA de confianza a de nivel de Sistema, recordar que en Android hay CAs de confianza validadas por el usuario (generadas por Burp Suite y agregadas por nosotros mismos por ejemplo) y otras CAs de confianza y validadas a nivel de sistema las cuales viene pre-instaladas con el sistema operativo Android&nbsp;</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Para versiones Android superiores a la 4.0, modificar el keystore se volvió un tema &nbsp;oscuro, lo cual no significa que no se pueda modificarse.</p>\n<p><br></p>\n<p><br></p>\n<p>Uno de los métodos para incluir un certificado y que Android lo considere como un certificado de confianza en el área del sistema se basa en la inclusión del mismo en el keystore, el keystore en versiones superiores 6, solo es accesible si eres root.</p>\n<p><br></p>\n<p><br></p>\n<p># Play Hard:</p>\n<p><br></p>\n<p>Todo se basa en una serie pasos, pullear el keystore modificar y setear los permisos en modo RW de /system para poder sobrescribir el keystore en nuestro Android y listo.. o no?</p>\n<p><br></p>\n<p><br></p>\n<p>Entorno donde fueron efectuadas las pruebas:</p>\n<p><br></p>\n<p><br></p>\n<p>* Android-x86 (Nougat - 7.1.2)</p>\n<p>* Android SDK tools</p>\n<p>* Java</p>\n<p>* OpenSSL package</p>\n<p><br></p>\n<p><br></p>\n<p>Si juegas con Android con VirtuaBox deberás conectarte a tu localhost, no olvides habilitar el &nbsp;```Port Fordwarding``` al puerto TCP 5555 si tu comunicación es por NAT a tu VM.</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb connect 127.0.0.1</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb shell</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>su</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Montamos /system a modo RW para poder modificar el keystore...</p>\n<p><br></p>\n<p>```bash</p>\n<p>mount -o remount,rw /system</p>\n<p>```</p>\n<p><br></p>\n<p>Debería mostrar un output similar a este..</p>\n<p>![workflow-adb](https://i.imgur.com/NTBwtpa.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Ahora debemos generar el certificado desde Burp Suite..</p>\n<p>![gen-der-burp-suite](https://i.imgur.com/wXcWh89.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Generamos los certificados compatibles (de DER a PEM) a partir de los certificados proveídos por Burp Suite</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>openssl x509 -in cacert.der -inform der -outform pem -out cacert.pem</p>\n<p>```</p>\n<p><br></p>\n<p>![gen-pem-cert](https://i.imgur.com/NTBwtpa.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Ahora necesitamos obtener el hash de nuestro certificado y setearlo como su nombre, si tienes OpenSSL &lt; 1.0 entonces deberas cambiar ```subject_hash_old``` &nbsp;a ```subject_hash```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>openssl x509 -inform PEM -subject_hash_old -in cacert.pem | head -1</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>El cambiamos el nombre...</p>\n<p>```bash</p>\n<p>cp -v cacert.pem 9a5ba575.0&nbsp;</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Hasta acá todo listo ahora necesitamos pushearla a nuestro dispositivo</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Necesitamos acceso root hacia nuestro dispositivo</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb root</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Movemos las credenciales desde nuestro PC a una carpeta en nuestro Android</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb push 9a5ba575.0 /data/local/tmp/</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Ahora accedemos a una terminal en nuestro Android</p>\n<p><br></p>\n<p>```bash</p>\n<p>adb shell</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Movemos el certificado a la carpeta donde se almacenan los certificados en Android</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p># mv /data/local/tmp/9a5ba575.0 /system/etc/security/cacerts/9a5ba575.0</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Seteamos los bits de RW para el owner y lectura para el grupo del usuario y otros</p>\n<p><br></p>\n<p>```bash</p>\n<p># chmod 644 /system/etc/security/cacerts/9a5ba575.0</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>And reboot...</p>\n<p>```bash</p>\n<p># reboot</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Luego deberíamos de poder ver el certificado ya instalado en nuestro Android</p>\n<p><br></p>\n<p><br></p>\n<p>![keystore-nougat](https://i.imgur.com/ghte68y.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Después de esto ya podemos autorizar y modificar HTTPs Request desde nuestro Burp Suite</p>\n<p><br></p>\n<p><br></p>\n<p>Saludos.</p>\n</html>",
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      "permlink": "instalacion-del-certificado-burp-suite-en-el-keystore-del-sistema-de-android-nougat-7-1-2",
      "title": "Instalación del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "Te gusta mas en video? puedes verlo desde aca.\n\n\n\n\nHola Steemiters,\n\n\n# Nota:\n\nEste post es un complemento y referencia de BBHV (Bimi Boo Hack Version), lo que busca este post es enumerar los vectores de ataque para hacer reversing a una APK de Android, en este caso se la hecho las pruebas se han realizado sobre [Bimii Boo Play & Learn](https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn) los pasos aca aplicados son validos para cualquier APK que utilice certificados para verificar la integridad de los datos recibidos y enviados a un webservices.\n\n\nLa aplicacion que se a utlizado para hacer la demo tiene una version limitada (free) y una version completa (version paga, usa la pasarela Google Pay) obviamente luego hecho el pago se puede utilizar la version completa de esta app.\n\n\n\n\n# Como funciona Google Pay:\n\n\nPara no entrar en detalles y explicarlo vagamente, cuando se inicia un pago via Google Pay se envia el ID de la aplicacion esta recibe los datos, luego solicita el medio de pago (credito en Google Pay, TDC, etc) verifica que sean validos y tengan fondos, envia los datos a wallet.google.com y deniega o concede la compra.\n\n\nResulta obvio si se lograran interceptar estos datos y puedan modificarse, saldo/fondos disponible, validez del medio de pago, cualquier pudiera hacer compras arbritrarias sin tener fondos en sus cuentas o montar un webservice personalizado y redirigir el trafico que se envia / recibe a play.google.com o wallet.google.com.\n\n\nComo era de esperarse este tipo de comunicacion entre cliente y servidor se resuelven bajo HTTPs, por lo tanto debemos romperlo para luego onfly modificar datos a nuestro gusto, las herramientas y la documentacion estan porque no usarlas?\n\n\n\n\n\n# Herramientas:\n\nLas que se me vinieron a la mente, fueron:\n\n* [Burp suite](https://portswigger.net), [Scapy](https://secdev.org/projects/scapy),[ zproxy](https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project)\n* [Xposed framework](https://repo.xposed.info/)\n* [Wireshark - tshark](https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/)\n* [Iptables](https://netfilter.org/)\n\n\n\nPero no todo es descargar, utilizar y modificar cabezeras, al intentar interceptar trafico entre los webservices de Google y nuestro Android no siempre es tarea facil, a media que las versiones de Android sean mas recientes la dificultad va aumentando, en versiones superiores a 4.0 no vale con solo un certificado autofirmado, se requiere algo mas.\n\n\n\nPara versiones recientes (y no tan recientes), se necesita  que el certificado sea validado por una CA de confiaza a de nivel de Sistema, recordar que en Android hay CAs de confianza validadas por el usuario (generadas por Burp Suite y agregadas por nosotros mismos por ejemplo) y otras CAs de confianza y validadas a nivel de sistema las cuales viene pre-instaladas con el sistema operativo Android \n\n\n\n\nPara versiones Android superiores a la 4.0, modificar el keystore se volvio un tema  oscuro, lo cual no significa que no se pueda modificarse.\n\n\nUno de los metodos para incluir un certificado y que Android lo considere como un certificado de confianza en el area del sistema se basa en la inclusion del mismo en el keystore, el keystore en versiones superiores 6, solo es accesible si eres root.\n\n\n# Play Hard:\n\nTodo se basa en una serie pasos, pullear el keystore modificar y setear los permisos en modo RW de /system para poder sobreescribir el keystore en nuestro Android y listo.. o no?\n\n\nEntorno donde fueron efectuadas las pruebas:\n\n\n* Android-x86 (Nougat - 7.1.2)\n* Android SDK tools\n* Java\n* OpenSSL package\n\n\nSi juegas con Android con VirtuaBox deberas conectarte a tu localhost, no olvides habilitar el  ```Port Fordwarding``` al puerto TCP 5555 si tu comunicacion es por NAT a tu VM.\n\n\n```bash\nadb connect 127.0.0.1\n```\n\n\n```bash\nadb shell\n```\n\n\n```bash\nsu\n```\n\n\nMontamos /system a modo RW para poder modificar el keystore...\n\n```bash\nmount -o remount,rw /system\n```\n\nDeberia mostrar un output similar a este..\n![workflow-adb](https://i.imgur.com/NTBwtpa.png)\n\n\n\nAhora debemos generar el certificado desde Burp Suite..\n![gen-der-burp-suite](https://i.imgur.com/wXcWh89.png)\n\n\n\nGeneramos los certificados compatibles (de DER a PEM) a partir de los certificados proveidos por Burp Suite\n\n\n```bash\nopenssl x509 -in cacert.der -inform der -outform pem -out cacert.pem\n```\n\n![gen-pem-cert](https://i.imgur.com/NTBwtpa.png)\n\n\n\n\nAhora necesitamos obtener el hash de nuestro certificado y setearlo como su nombre, si tienes OpenSSL < 1.0 entonces deberas cambiar ```subject_hash_old```  a ```subject_hash```\n\n\n\n```bash\nopenssl x509 -inform PEM -subject_hash_old -in cacert.pem | head -1\n```\n\n\n\n\n\nEl cambiamos el nombre...\n```bash\ncp -v cacert.pem 9a5ba575.0 \n```\n\n\n\n\n\n\nHasta aca todo listo ahora necesitamos pushearla a nuestro dispositivo\n\n\n\n\n\nNecesitamos acceso root hacia nuestro dispositivo\n\n\n\n```bash\nadb root\n```\n\n\nMovemos las credenciales desde nuestro PC a una carpeta en nuestro Android\n\n\n\n```bash\nadb push 9a5ba575.0 /data/local/tmp/\n```\n\n\nAhora accedemos a una terminal en nuestro Android\n\n```bash\nadb shell\n```\n\n\nMovemos el certificado a la carpeta donde se almacenan los certificados en Android\n\n\n\n```bash\n# mv /data/local/tmp/9a5ba575.0 /system/etc/security/cacerts/9a5ba575.0\n```\n\n\n\n\nSeteamos los bits de RW para el owner y lectura para el grupo del usuario y otros\n\n```bash\n# chmod 644 /system/etc/security/cacerts/9a5ba575.0\n```\n\n\n\n\n\nAnd reboot...\n```bash\n# reboot\n```\n\n\n\n\n\n\nLuego deberiamos de poder ver el certificado ya instalado en nuestro Android\n\n\n![keystore-nougat](https://i.imgur.com/ghte68y.png)\n\n\n\n\n\n\n\nA partir de aca ya puedes modificar cabeceras que vayan en HTTPs  a traves de Burp Suite.",
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      "title": "Instalacion del certificado Burp Suite en el keystore del sistema de Android Nougat (7.1.2)",
      "body": "<html>\n<p>Te gusta mas en vídeo? puedes verlo desde acá.[desde acá](https://d.tube/#!/v/opensylar/v5njj40b)</p>\n<p><br></p>\n<p><br></p>\n<p>Hola Steemiters,</p>\n<p><br></p>\n<p># Nota:</p>\n<p><br></p>\n<p>Este post es un complemento y referencia de BBHV (Bimi Boo Hack Version), lo que busca este post es enumerar los vectores de ataque para hacer reversing a una APK de Android, en este caso se la hecho las pruebas se han realizado sobre [Bimii Boo Play &amp; Learn](https://play.google.com/store/apps/details?id=com.bimiboo.playandlearn) los pasos acá aplicados son validos para cualquier APK que utilice certificados para verificar la integridad de los datos recibidos y enviados a un webservices.</p>\n<p><br></p>\n<p><br></p>\n<p>La aplicación que se a utilizado para hacer la demo tiene una versión limitada (free) y una versión completa (versión paga, usa la pasarela Google Pay) obviamente luego hecho el pago se puede utilizar la versión completa de esta app.</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p># Como funciona Google Pay:</p>\n<p><br></p>\n<p><br></p>\n<p>Para no entrar en detalles y explicarlo vagamente, cuando se inicia un pago vía Google Pay se envia el ID de la aplicación esta recibe los datos, luego solicita el medio de pago (crédito en Google Pay, TDC, etc) verifica que sean validos y tengan fondos, envía los datos a wallet.google.com y deniega o concede la compra.</p>\n<p><br></p>\n<p><br></p>\n<p>Resulta obvio si se lograran interceptar estos datos y puedan modificarse, saldo/fondos disponible, validez del medio de pago, cualquier pudiera hacer compras arbitrarias sin tener fondos en sus cuentas o montar un webservice personalizado y redirigir el trafico que se envia / recibe a play.google.com o wallet.google.com.</p>\n<p><br></p>\n<p><br></p>\n<p>Como era de esperarse este tipo de comunicación entre cliente y servidor se resuelven bajo HTTPs, por lo tanto debemos romperlo para luego onfly modificar datos a nuestro gusto, las herramientas y la documentación están porque no usarlas?</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p># Herramientas:</p>\n<p><br></p>\n<p>Las que se me vinieron a la mente, fueron:</p>\n<p><br></p>\n<p>* [Burp suite](https://portswigger.net), [Scapy](https://secdev.org/projects/scapy),[ zproxy](https://www.owasp.org/index.php/OWASP_Zed_Attack_Proxy_Project)</p>\n<p>* [Xposed framework](https://repo.xposed.info/)</p>\n<p>* [Wireshark - tshark](https://www.wireshark.org/), [tcpdump](https://www.tcpdump.org/)</p>\n<p>* [Iptables](https://netfilter.org/)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Pero no todo es descargar, utilizar y modificar cabeceras, al intentar interceptar trafico entre los webservices de Google y nuestro Android no siempre es tarea fácil, a media que las versiones de Android sean mas recientes la dificultad va aumentando, en versiones superiores a 4.0 no vale con solo un certificado auto firmado, se requiere algo mas.</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Para versiones recientes (y no tan recientes), se necesita &nbsp;que el certificado sea validado por una CA de confianza a de nivel de Sistema, recordar que en Android hay CAs de confianza validadas por el usuario (generadas por Burp Suite y agregadas por nosotros mismos por ejemplo) y otras CAs de confianza y validadas a nivel de sistema las cuales viene pre-instaladas con el sistema operativo Android&nbsp;</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Para versiones Android superiores a la 4.0, modificar el keystore se volvió un tema &nbsp;oscuro, lo cual no significa que no se pueda modificarse.</p>\n<p><br></p>\n<p><br></p>\n<p>Uno de los métodos para incluir un certificado y que Android lo considere como un certificado de confianza en el área del sistema se basa en la inclusión del mismo en el keystore, el keystore en versiones superiores 6, solo es accesible si eres root.</p>\n<p><br></p>\n<p><br></p>\n<p># Play Hard:</p>\n<p><br></p>\n<p>Todo se basa en una serie pasos, pullear el keystore modificar y setear los permisos en modo RW de /system para poder sobrescribir el keystore en nuestro Android y listo.. o no?</p>\n<p><br></p>\n<p><br></p>\n<p>Entorno donde fueron efectuadas las pruebas:</p>\n<p><br></p>\n<p><br></p>\n<p>* Android-x86 (Nougat - 7.1.2)</p>\n<p>* Android SDK tools</p>\n<p>* Java</p>\n<p>* OpenSSL package</p>\n<p><br></p>\n<p><br></p>\n<p>Si juegas con Android con VirtuaBox deberás conectarte a tu localhost, no olvides habilitar el &nbsp;```Port Fordwarding``` al puerto TCP 5555 si tu comunicación es por NAT a tu VM.</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb connect 127.0.0.1</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb shell</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>su</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Montamos /system a modo RW para poder modificar el keystore...</p>\n<p><br></p>\n<p>```bash</p>\n<p>mount -o remount,rw /system</p>\n<p>```</p>\n<p><br></p>\n<p>Debería mostrar un output similar a este..</p>\n<p>![workflow-adb](https://i.imgur.com/NTBwtpa.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Ahora debemos generar el certificado desde Burp Suite..</p>\n<p>![gen-der-burp-suite](https://i.imgur.com/wXcWh89.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Generamos los certificados compatibles (de DER a PEM) a partir de los certificados proveídos por Burp Suite</p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>openssl x509 -in cacert.der -inform der -outform pem -out cacert.pem</p>\n<p>```</p>\n<p><br></p>\n<p>![gen-pem-cert](https://i.imgur.com/NTBwtpa.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Ahora necesitamos obtener el hash de nuestro certificado y setearlo como su nombre, si tienes OpenSSL &lt; 1.0 entonces deberas cambiar ```subject_hash_old``` &nbsp;a ```subject_hash```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>openssl x509 -inform PEM -subject_hash_old -in cacert.pem | head -1</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>El cambiamos el nombre...</p>\n<p>```bash</p>\n<p>cp -v cacert.pem 9a5ba575.0&nbsp;</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Hasta acá todo listo ahora necesitamos pushearla a nuestro dispositivo</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Necesitamos acceso root hacia nuestro dispositivo</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb root</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Movemos las credenciales desde nuestro PC a una carpeta en nuestro Android</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p>adb push 9a5ba575.0 /data/local/tmp/</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Ahora accedemos a una terminal en nuestro Android</p>\n<p><br></p>\n<p>```bash</p>\n<p>adb shell</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p>Movemos el certificado a la carpeta donde se almacenan los certificados en Android</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>```bash</p>\n<p># mv /data/local/tmp/9a5ba575.0 /system/etc/security/cacerts/9a5ba575.0</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Seteamos los bits de RW para el owner y lectura para el grupo del usuario y otros</p>\n<p><br></p>\n<p>```bash</p>\n<p># chmod 644 /system/etc/security/cacerts/9a5ba575.0</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>And reboot...</p>\n<p>```bash</p>\n<p># reboot</p>\n<p>```</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Luego deberíamos de poder ver el certificado ya instalado en nuestro Android</p>\n<p><br></p>\n<p><br></p>\n<p>![keystore-nougat](https://i.imgur.com/ghte68y.png)</p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p><br></p>\n<p>Después de esto ya podemos autorizar y modificar HTTPs Request desde nuestro Burp Suite</p>\n<p><br></p>\n<p><br></p>\n<p>Saludos..</p>\n</html>",
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