{"id":16586,"date":"2022-10-13T05:45:35","date_gmt":"2022-10-12T21:45:35","guid":{"rendered":"http:\/\/lrxjmw.cn\/?p=16586"},"modified":"2022-10-13T05:45:39","modified_gmt":"2022-10-12T21:45:39","slug":"android-root-theory","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/android-root-theory.html","title":{"rendered":"Android root \u539f\u7406"},"content":{"rendered":"<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>0x00 \u5173\u4e8eroot<\/strong><\/div>\n<p>linux\u548c\u7c7bUnix\u7cfb\u7edf\u7684\u6700\u521d\u8bbe\u8ba1\u90fd\u662f\u9488\u5bf9\u591a\u7528\u6237\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5bf9\u4e8e\u7528\u6237\u6743\u9650\u7684\u7ba1\u7406\u5f88\u975e\u5e38\u4e25\u683c\u7684\uff0c\u800croot\u7528\u6237\uff08\u8d85\u7ea7\u7528\u6237\uff09\u5c31\u662f\u6574\u4e2a\u7cfb\u7edf\u7684\u552f\u4e00\u7ba1\u7406\u5458\uff0c\u62e5\u6709\u7b49\u540c\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7684\u6240\u6709\u6743\u9650\u3002\u6240\u4ee5\u4e00\u65e6\u83b7\u53d6\u5230root\u6743\u9650\uff0c\u5c31\u53ef\u4ee5\u5bf9\u6574\u4e2a\u7cfb\u7edf\u8fdb\u884c\u8bbf\u95ee\u548c\u4fee\u6539\u3002\u800c\u5728Android\u4e0b\u83b7\u53d6root\u6743\u9650\u4e4b\u540e\u5c31\u53ef\u4ee5\u81ea\u5df1\u5b9a\u5236\u7cfb\u7edf\uff0c\u5378\u8f7d\u4e00\u4e9b\u9884\u88c5\u8f6f\u4ef6\uff0c\u5b8c\u5168\u638c\u63a7\u81ea\u5df1\u7684\u8bbe\u5907\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>0x01 setUID<\/strong><\/div>\n<p>\u5728\u8ba8\u8bbaroot\u7684\u539f\u7406\u4e4b\u524d\uff0c\u6709\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5c31\u662f\u6587\u4ef6\u7684setUID\u6743\u9650\u3002linux\u4e0b\u666e\u901a\u7684\u6587\u4ef6\u6743\u9650\u5927\u5bb6\u90fd\u5f88\u6e05\u695a\uff0c\u53ef\u8bfb\uff0c\u53ef\u5199\uff0c\u53ef\u6267\u884c\uff0c\u4e0b\u56fe\u5f88\u6e05\u695a\u7684\u4e00\u4e2a\u666e\u901a\u7684\u53ef\u6267\u884c\u6587\u4ef6root\u7684\u6743\u9650\uff0cr\uff08\u53ef\u8bfb\uff09\uff0cw\uff08\u53ef\u5199\uff09\uff0cx\uff08\u53ef\u6267\u884c\uff09\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16589\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_01.png\" alt=\"android_root_theory_01\" width=\"365\" height=\"62\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_01.png 365w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_01-300x51.png 300w\" sizes=\"auto, (max-width: 365px) 100vw, 365px\" \/><\/p>\n<p>\u4f46\u662f\uff0c\u8981\u8003\u8651\u4e00\u79cd\u60c5\u51b5\uff0c\u6bd4\u5982\u8bf4\uff0c\u4e00\u4e2a\u7528\u6237\u662f\u6709\u6743\u4fee\u6539\u81ea\u5df1\u7684\u5bc6\u7801\u7684\uff0c\u4f46\u662f\u8bb0\u5f55\u5bc6\u7801\u7684\u6587\u4ef6\/etc\/shadow\u53ea\u6709root\u7528\u6237\u624d\u662f\u53ef\u5199\u7684\uff0c\u90a3\u666e\u901a\u7528\u6237\u5982\u4f55\u624d\u80fd\u4fee\u6539\u81ea\u5df1\u7684\u5bc6\u7801\u5462\uff1f\u8fd9\u4e00\u5207\u90fd\u8981\u5f52\u529f\u4e8esetUID\u7684\u8bbe\u7f6e\uff0c\u4fee\u6539\u5bc6\u7801\u65f6\u4f7f\u7528\u7684\u547d\u4ee4passwd\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u662f\/usr\/bin\/passwd<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16590\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_02.png\" alt=\"android_root_theory_02\" width=\"444\" height=\"35\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_02.png 444w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_02-300x24.png 300w\" sizes=\"auto, (max-width: 444px) 100vw, 444px\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230passwd\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u6743\u9650\u4f4d\u4e2d\u4e0d\u4ec5\u4ec5\u662frwx\u4e86\uff0c\u591a\u4e86\u4e00\u4e2as\u6743\u9650\uff0c\u800c\u8fd9\u4e2as\u6743\u9650\u5c31\u662f\u6211\u4eec\u7684\u4e3b\u89d2\uff0csetUID\u6743\u9650\u3002<\/p>\n<p>\u7531\u4e8epasswd\u6709setUID\u6743\u9650\uff0c\u6240\u4ee5linux\u7cfb\u7edf\u53ef\u4ee5\u4e34\u65f6\u628a\u8fd9\u4e2a\u6587\u4ef6\u7684\u6240\u6709\u8005\uff08root\uff09\u8eab\u4efd\u89d2\u8272\u8d4b\u7ed9\u666e\u901a\u7528\u6237\uff0c\u4ee5\u8fbe\u5230\u8ba9\u666e\u901a\u7528\u6237\u53ef\u4ee5\u4fee\u6539\u81ea\u5df1\u5bc6\u7801\u7684\u76ee\u7684\u3002<\/p>\n<p>\u90a3\u5982\u4f55\u8bbe\u7f6esetUID\u6743\u9650\u5462\uff1f<\/p>\n<p>\u5e73\u5e38\u4f7f\u7528\u7684\u666e\u901a\u6587\u4ef6\u6743\u9650\u4f4d\u662f\u75313\u3001\uff13\u3001\uff13\u51719\u4f4d\u7684\u4e8c\u8fdb\u5236\u6570\u5b57\u7ec4\u6210\u3000\uff0d\uff0d\uff0d\uff5c\uff0d\uff0d\uff0d\uff5c\uff0d\uff0d\uff0d\uff0c\u5206\u522b\u5bf9\u5e94\u6587\u4ef6\u6240\u6709\u8005\uff0c\u6587\u4ef6\u6240\u6709\u8005\u540c\u4e00\u7528\u6237\u7ec4\u6743\u9650\u548c\u5176\u4ed6\u7528\u6237\u6743\u9650\u3002\u6700\u5f00\u59cb\u7684\u540d\u4e3aroot\u7684\u53ef\u6267\u884c\u6587\u4ef6\u7684\u6743\u9650\u4e3arwxrwxr-x\uff0c\u6240\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u4f4d\u5c31\u662f111 111 101 \uff0c\u7136\u540e\u6bcf\u4e09\u4f4d\u5bf9\u5e94421\u6362\u7b97\u621016\u8fdb\u5236\uff0c\u5c31\u662f775\u3002\u800c\u65b0\u589e\u7684setUID\u6743\u9650\u662f\u5728\u524d\u9762\u65b0\u589e\u4e86\u4e09\u4f4d\uff0c\u5206\u522b\u8868\u793asetGID\u3001setUID\u3001stick bit\u6743\u9650\uff0c\u800c\u6211\u4eec\u73b0\u5728\u53ea\u5173\u5fc3setUID\u6743\u9650\u3002\u56e0\u6b64\u52a0\u4e0asetUID\u6743\u9650\u4e4b\u540e\uff0c\u6587\u4ef6\u7684\u6743\u9650\u5e94\u8be5\u75314\u4f4d\u6570\u5b57\u7ec4\u6210\uff0c\u4f8b\u5982\u4e4b\u524d\u7684root\u6587\u4ef6\u52a0\u4e0asetUID\u6743\u9650\u5c31\u662f4755\u3002\u800c\u4fee\u6539\u5bc6\u7801\u7684passwd\u6587\u4ef6\u5bf9\u5e94\u7684\u6743\u9650\u4f4d\u5c31\u662f4755\u3002<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u5c0f\u4f8b\u5b50\u6765\u76f4\u89c2\u7684\u611f\u53d7\u4e00\u4e0b\uff0c\u5e73\u5e38\u4f7f\u7528\u7684cat\u547d\u4ee4\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u662f\u6ca1\u6709setUID\u6743\u9650\u7684\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16593\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_03.png\" alt=\"android_root_theory_03\" width=\"387\" height=\"32\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_03.png 387w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_03-300x25.png 300w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/p>\n<p>\u53ef\u4ee5\u5728\u666e\u901a\u7528\u6237\u4e0b\u5c1d\u8bd5\u4f7f\u7528cat\u53bb\u8bfb\u53d6\/etc\/shadow\u6587\u4ef6\u7684\u5185\u5bb9\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16594\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_04.png\" alt=\"android_root_theory_04\" width=\"233\" height=\"27\" \/><\/p>\n<p>\u63d0\u793a\u6743\u9650\u4e0d\u591f\uff0c\u518d\u7ed9cat\u52a0\u4e0asetUID\u6743\u9650\u4e4b\u540e\u518d\u53bb\u8bfb\u53d6\/etc\/shadow\u7684\u5185\u5bb9\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16595\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_05.png\" alt=\"android_root_theory_05\" width=\"560\" height=\"206\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_05.png 560w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_05-300x110.png 300w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/p>\n<p>\u662f\u53ef\u4ee5\u8bfb\u51fa\u6765\u7684\uff0c\u4f46\u662f\/etc\/shadow\u4e2d\u7684\u5185\u5bb9\u90fd\u7ecf\u8fc7\u52a0\u5bc6\u5904\u7406\u3002<\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>0x02 Linux \u4e0b\u7684root<\/strong><\/div>\n<p>\u5e73\u5e38\u4f7f\u7528\u7684linux\u53d1\u884c\u7248\uff0c\u9700\u8981\u5207\u6362\u5230root\u7528\u6237\u65f6\uff0c\u76f4\u63a5\u4f7f\u7528su\u547d\u4ee4\uff0c\u7136\u540e\u8f93\u5165su\u7528\u6237\u7684\u5bc6\u7801\u5c31\u53ef\u4ee5\u5207\u6362\u5230root\u7528\u6237\u4e86\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16597\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_06.png\" alt=\"android_root_theory_06\" width=\"383\" height=\"46\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_06.png 383w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_06-300x36.png 300w\" sizes=\"auto, (max-width: 383px) 100vw, 383px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16598\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_07.png\" alt=\"android_root_theory_07\" width=\"310\" height=\"45\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_07.png 310w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_07-300x45.png 300w\" sizes=\"auto, (max-width: 310px) 100vw, 310px\" \/><\/p>\n<div   id="j6sjwn9j3u"    style=\"font-size: 14pt; color: white; background-color: black; border-left: red 10px solid; padding-left: 14px; margin-bottom: 20px; margin-top: 20px;\"><strong>0x03 Android \u7684root<\/strong><\/div>\n<p>\u4f46\u662f\u5728\u672aroot\u7684Android\u8bbe\u5907\u4e0a\u662f\u6ca1\u6709su\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u76f4\u63a5\u6267\u884csu\u547d\u4ee4\u4f1a\u63d0\u793a\"su not found\"\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16603\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_08.png\" alt=\"android_root_theory_08\" width=\"228\" height=\"47\" \/><\/p>\n<p>\u518d\u8fdb\u5165\u5df2\u7ecfroot\u8fc7\u7684\u8bbe\u5907\u4e0a\u67e5\u770b\uff0c\u5e73\u5e38\u5728adb shell\u4e2d\u7528\u7684\u547d\u4ee4\u5bf9\u5e94\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u90fd\u662f\u5728\/system\/bin\u76ee\u5f55\u4e0b\uff0c\u662f\u5b58\u5728su\u6587\u4ef6\u7684\uff1a<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16604\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_09.png\" alt=\"android_root_theory_09\" width=\"558\" height=\"30\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_09.png 558w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_09-300x16.png 300w\" sizes=\"auto, (max-width: 558px) 100vw, 558px\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u8fd9\u91cc\u7684su\u53ea\u662f\u4e00\u4e2a\u6307\u5411\/system\/xbin\/\u7684\u4e00\u4e2a\u94fe\u63a5\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16605\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_10.png\" alt=\"android_root_theory_10\" width=\"510\" height=\"184\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_10.png 510w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2016\/06\/android_root_theory_10-300x108.png 300w\" sizes=\"auto, (max-width: 510px) 100vw, 510px\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u8fd9\u91cc\u7684su\u662f\u6709setUID\u6743\u9650\u4f4d\u7684\u3002<\/p>\n<p>\u800c\u8981\u5728\u7cfb\u7edf\u5206\u533a \/system\/xbin \u4e2d\u6dfb\u52a0\u6587\u4ef6\u672c\u8eab\u5c31\u662f\u9700\u8981root\u6743\u9650\uff0c\u800c\u4e14\u8bbe\u7f6esu\u6587\u4ef6\u7684\u6240\u6709\u8005\u4e3aroot\u7528\u6237\u4e5f\u662f\u9700\u8981root\u6743\u9650\u7684\uff0c\u8bbe\u7f6esetUID\u6743\u9650\u540c\u6837\u4e5f\u9700\u8981root\u6743\u9650\u3002<\/p>\n<p>\u8fd9\u5c31\u8fdb\u5165\u5230\u4e86\u4e00\u4e2a\u6b7b\u5faa\u73af\u5f53\u4e2d\uff0c\u8981\u5229\u7528su\uff0c\u9996\u5148\u8981\u6709root\u6743\u9650\u3002\u56e0\u6b64\u8fd9\u65f6\u5c31\u9700\u8981\u5229\u7528\u5230Android\u5b58\u5728\u7684\u6f0f\u6d1e\uff0cAndroid\u7cfb\u7edf\u672c\u8eab\u5b58\u5728\u7740\u5f88\u591a\u4ee5root\u6743\u9650\u8fd0\u884c\u7684\u539f\u751f\u8fdb\u7a0b\uff0c\u800c\u8fd9\u4e9broot\u8fdb\u7a0b\u4e2d\u5982\u679c\u5b58\u5728\u53ef\u4ee5\u5229\u7528\u7684\u6f0f\u6d1e\uff0c\u5c31\u53ef\u4ee5\u5229\u7528\u8fdb\u7a0b\u7684root\u8eab\u4efd\uff1a<\/p>\n<ol>\n<li>\u62f7\u8d1dsu\u6587\u4ef6\u5230\/system\/xbin\u7cfb\u7edf\u5206\u533a\uff1b<\/li>\n<li>\u8bbe\u7f6esu\u6587\u4ef6\u6240\u6709\u8005\u4e3aroot\u7528\u6237\uff1b<\/li>\n<li>\u8bbe\u7f6esu\u6587\u4ef6\u7684setUID\u6743\u9650\uff0c\u4fbf\u4e8e\u81ea\u5df1\u7684\u8fdb\u7a0b\u6267\u884csu\u547d\u4ee4\u83b7\u53d6root\u6743\u9650\u3002<\/li>\n<\/ol>\n<blockquote>\n<p style=\"text-align: left; color: #88a6a4;\">\u539f\u6587\u6765\u81ea\uff1a<a href=\"http:\/\/www.cnblogs.com\/lanrenxinxin\/p\/5572640.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.cnblogs.com\/lanrenxinxin\/p\/5572640.html<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/lrxjmw.cn\/android-root-theory.html\" target=\"_blank\" rel=\"noopener\">http:\/\/lrxjmw.cn\/android-root-theory.html<\/a><span style=\"float: right;\">\u7f16\u8f91\uff1a\u9004\u589e\u5b9d\uff0c\u5ba1\u6838\u5458\uff1a\u51af\u632f\u534e<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>0x00 \u5173\u4e8eroot linux\u548c\u7c7bUnix\u7cfb\u7edf\u7684\u6700\u521d\u8bbe\u8ba1\u90fd\u662f\u9488\u5bf9\u591a\u7528\u6237\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u5bf9\u4e8e\u7528\u6237\u6743\u9650\u7684\u7ba1\u7406\u5f88\u975e\u5e38 [&hellip;]<\/p>\n","protected":false},"author":309,"featured_media":16609,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-16586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/16586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/309"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=16586"}],"version-history":[{"count":14,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/16586\/revisions"}],"predecessor-version":[{"id":254639,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/16586\/revisions\/254639"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/16609"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=16586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=16586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=16586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}