{"id":156164,"date":"2019-08-30T09:29:53","date_gmt":"2019-08-30T01:29:53","guid":{"rendered":"https:\/\/lrxjmw.cn\/?p=156164"},"modified":"2019-08-20T09:30:32","modified_gmt":"2019-08-20T01:30:32","slug":"linux-xxd-extract","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/linux-xxd-extract.html","title":{"rendered":"\u7528\u4e8e\u63d0\u6743\u7684Linux\u547d\u4ee4\uff0c\u5373\u201cxxd\u201d"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td style=\"padding: 5px 12px; width: 25px; font-size: 22px; text-align: center; background: #E8E8E8; line-height: 30px; color: #999;\">\u5bfc\u8bfb<\/td>\n<td style=\"padding: 10px 10px 12px; line-height: 20px;\"><strong>\u672c\u6587\u5c06\u4e3a\u5927\u5bb6\u4ecb\u7ecd\u53e6\u4e00\u4e2a\u53ef\u7528\u4e8e\u63d0\u6743\u7684Linux\u547d\u4ee4\uff0c\u5373\u201cxxd\u201d\u3002xxd\u547d\u4ee4\u7684\u4f5c\u7528\u662f\u5c06\u7ed9\u5b9a\u7684\u6807\u51c6\u8f93\u5165\u6216\u8005\u6587\u4ef6\uff0c\u505a\u4e00\u6b21\u5341\u516d\u8fdb\u5236\u7684\u8f93\u51fa\uff0c\u53cd\u4e4b\u5b83\u4e5f\u53ef\u4ee5\u5c06\u5341\u516d\u8fdb\u5236\u7684\u8f93\u51fa\u8f6c\u6362\u4e3a\u539f\u6765\u7684\u4e8c\u8fdb\u5236\u683c\u5f0f\u3002<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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>xxd \u4ecb\u7ecd<\/strong><\/div>\n<p>\u6211\u4eec\u77e5\u9053\u5982\u679c\u60f3\u8981\u5c06\u67d0\u4e2a\u6587\u4ef6\u8f6c\u6362\u6210\u53e6\u4e00\u79cd\u683c\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e00\u4e9b\u5728\u7ebf\u7684\u8f6c\u6362\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5c06\u4e00\u4e2a\u6587\u4ef6\u8f6c\u6362\u6210\u51e0\u4e4e\u4efb\u4f55\u6211\u4eec\u6240\u9700\u7684\u6587\u4ef6\u683c\u5f0f\uff0c\u4f8b\u5982\uff1a\u201cpdf to word\uff0cjpg to pdf\uff0cexcel to pdf\u201c\u7b49\u7b49\u3002\u4f46\u5982\u679c\u6709\u4eba\u60f3\u8981\u5c06\u4efb\u610f\u6587\u4ef6\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u6216\u4e8c\u8fdb\u5236\u5f62\u5f0f\uff0c\u90a3\u53c8\u8be5\u600e\u4e48\u529e\u5462\uff1f<br \/>\n\u5176\u5b9e\u8fd9\u5f88\u7b80\u5355\uff0c\u5728Linux\u4e0a\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7xxd\u8fd9\u4e2a\u547d\u4ee4\u6765\u505a\u5230\u8fd9\u4e00\u70b9\u3002xxd\u547d\u4ee4\u53ef\u4ee5\u4e3a\u7ed9\u5b9a\u7684\u6807\u51c6\u8f93\u5165\u6216\u8005\u6587\u4ef6\u505a\u4e00\u6b21\u5341\u516d\u8fdb\u5236\u7684\u8f93\u51fa\uff0c\u5b83\u4e5f\u53ef\u4ee5\u5c06\u5341\u516d\u8fdb\u5236\u8f93\u51fa\u8f6c\u6362\u4e3a\u539f\u6765\u7684\u4e8c\u8fdb\u5236\u683c\u5f0f\u3002\u8fd9\u4e5f\u6709\u52a9\u4e8e\u5bf9\u4efb\u610f\u6587\u4ef6\u7684\u7f16\u7801\u548c\u89e3\u7801\u3002<br \/>\n\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u4f7f\u7528<code>help\/man<\/code>\u547d\u4ee4\uff0c\u67e5\u770b<code>xxd<\/code>\u547d\u4ee4\u7684\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<pre>xxd -h<\/pre>\n<p>\u4f7f\u7528 xxd \u6267\u884c\u7684\u4e3b\u8981\u64cd\u4f5c<br \/>\n\u5c06\u6587\u4ef6\u5185\u5bb9\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\uff1a\u4f8b\u5982\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a\u201csecret.txt\u201d\u7684\u65b0\u6587\u4ef6\uff0c\u73b0\u5728\u6211\u60f3\u5c06\u5176\u5185\u5bb9\u90fd\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u5f62\u5f0f\uff0c\u6211\u53ef\u4ee5\u901a\u8fc7\u952e\u5165\u4ee5\u4e0b\u547d\u4ee4\u6267\u884c\uff1a<\/p>\n<pre>Syntax: xxd filename\r\nxxd secret.txt<\/pre>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u5f88\u660e\u663exxd\u5df2\u7ecf\u4e3a\u6587\u4ef6\u201csecret.txt\u201d\u751f\u6210\u4e86\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\u3002<br \/>\n\u5728\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5230\uff0c\u4ee5\u4e0b\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\u83b7\u5f97\u4e86\u5b83\u7684\u9ed8\u8ba4\u683c\u5f0f\uff0c\u4f8b\u5982\uff1a<br \/>\n\u7d22\u5f15\u884c\u6570<br \/>\n\u6bcf\u7ec4\u7684\u9ed8\u8ba4\u516b\u4f4d\u5b57\u8282\u6570\u4e3a2\uff0c\u5176\u5206\u7ec4\u5927\u5c0f\u4e3a4\u5b57\u8282<br \/>\n\u6807\u51c6\u5217\u957f\u5ea6\u4e3a16\u4f4d\uff0c\u5e26\u6709\u7a7a\u683c<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-1.jpg\" alt=\"\" width=\"640\" height=\"629\" class=\"aligncenter size-full wp-image-156165\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-1.jpg 640w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-1-300x295.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><br \/>\n\u4f7f\u7528xxd\u8df3\u8fc7\u7b2cn\u884c\uff1a\u5728\u8f6c\u6362\u6587\u4ef6\u65f6\uff0c\u6709\u8bb8\u591a\u6570\u636e\u53ef\u80fd\u662f\u6211\u4eec\u4e0d\u9700\u8981\u7684\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u8df3\u8fc7\u8fd9\u4e9b\u5185\u5bb9\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528xxd\u8df3\u8fc7\u7b2cn\u884c\uff0c\u5e76\u5728\u8df3\u8fc7\u7684\u884c\u540e\u751f\u6210\u5341\u516d\u8fdb\u5236\u503c\u3002<br \/>\n\u5047\u8bbe\u5728\u6211\u5f53\u524d\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u60f3\u8981\u4ece\u7b2c5\u884c\u751f\u6210\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u201c-s\u201d\u53c2\u6570\u540e\u8ddfxxd\u547d\u4ee4\u6765\u5b9e\u73b0\u3002<\/p>\n<pre>xxd -s 0x50 secret.txt<\/pre>\n<p>\u5c06\u8f93\u51fa\u9650\u5236\u4e3a\u7279\u5b9a\u957f\u5ea6\uff1a\u4ee5\u4e0a\u6211\u5df2\u7ecf\u89e3\u91ca\u4e86\u5982\u4f55\u901a\u8fc7\u8df3\u8fc7\u884c\u6570\u6765\u68c0\u7d22\u6570\u636e\u3002\u4f46\u662f\uff0c\u5982\u679c\u4f60\u60f3\u8981\u9650\u5236\u6807\u51c6\u8f93\u51fa\u7684\u957f\u5ea6\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u4f7f\u7528\u201c-l\u201d\u53c2\u6570\u3002<br \/>\n\u8fd9\u91cc\uff0c\u6211\u9650\u5236\u4e86\u6211\u7684\u5185\u5bb9\u957f\u5ea6\uff0c\u4ee5\u5c06\u6570\u636e\u6253\u5370\u5230\u6709\u9650\u7684\u8303\u56f4\uff0c\u5373\u7b2c5\u884c\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<pre>xxd -l 0x50 secret.txt<\/pre>\n<p>\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u89c2\u5bdf\u5230\u4e24\u4e2a\u547d\u4ee4\u4e4b\u95f4\u7684\u5dee\u5f02\uff1b\u7b2c\u4e00\u4e2a\u547d\u4ee4\u751f\u6210\u4ece\u7b2c6\u884c\u521d\u59cb\u5316\u7684\u5341\u516d\u8fdb\u5236\u503c\uff0c\u7b2c\u4e8c\u4e2a\u547d\u4ee4\u6839\u636e\u5341\u516d\u8fdb\u5236\u7d22\u5f15\u4ee5\u7b2c5\u884c\u7ed3\u675f\uff0c\u8bf7\u53c2\u8003\u4ee5\u4e0a\u622a\u56fe\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-2.jpg\" alt=\"\" width=\"640\" height=\"577\" class=\"aligncenter size-full wp-image-156166\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-2.jpg 640w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-2-300x270.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><br \/>\n\u5c06\u6587\u4ef6\u5185\u5bb9\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u6587\u4ef6\uff1a\u5982\u679c\u4f60\u60f3\u5c06\u6587\u4ef6\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5f62\u5f0f\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u201c-b\u201d\u9009\u9879\u3002\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre>xxd -b secret.txt<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-3.jpg\" alt=\"\" width=\"640\" height=\"356\" class=\"aligncenter size-full wp-image-156167\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-3.jpg 640w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-3-300x167.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><br \/>\n\u8bbe\u7f6e\u5217\u957f\uff1a\u4e0a\u9762\u6211\u5df2\u7ecf\u4ecb\u7ecd\u4e86\u5982\u4f55\u8df3\u8fc7\u5e76\u9650\u5236\u8f93\u51fa\u5230\u8303\u56f4\uff0c\u5176\u5b9e\u6211\u4eec\u8fd8\u53ef\u4ee5\u8bbe\u7f6e\u5217\u7684\u957f\u5ea6\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5bf9\u4e8e\u4efb\u4f55\u8f6c\u50a8\u6587\u4ef6\u5b83\u90fd\u662f12, 16\u3002<br \/>\n\u9ed8\u8ba4\u503c\uff1a\u6211\u4eec\u77e5\u9053\u9ed8\u8ba4\u5217\u957f\u5ea6\u4e3a16\u3002\u8fd9\u5c06\u6253\u537016\u4e2a\u5b57\u7b26\uff0c\u5305\u62ec\u7a7a\u683c\u3002<\/p>\n<pre>xxd -l 0x20 secret.txt<\/pre>\n<p>\u5c06\u5217\u957f\u5ea6\u8bbe\u7f6e\u4e3a32\uff1a\u6211\u4f7f\u7528\u201c-l\u201d\u9009\u9879\u8bbe\u7f6e\u4e86\u7ed3\u675f\u7d22\u5f15\u4ee5\u9650\u5236\u6253\u5370\u6570\u636e\u7684\u8303\u56f4\u3002\u7136\u540e\u6211\u4f7f\u7528\u201c-c\u201d\u53c2\u6570\uff0c\u5c06\u5217\u7684\u957f\u5ea6\u8bbe\u4e3a\u4e8632\u3002<\/p>\n<pre>xxd -l 0x40 -c 32 secret.txt<\/pre>\n<p>\u4ece\u4e0b\u56fe\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053xxd\u662f\u5982\u4f55\u9650\u5236\u5217\u957f\u5ea6\u7684\u3002<br \/>\n\u5c06\u5217\u957f\u5ea6\u8bbe\u7f6e\u4e3a9\uff1a\u73b0\u5728\u6211\u4eec\u5c06\u5217\u957f\u5ea6\u8bbe\u7f6e\u4e3a\u201c9\u201d\u3002<\/p>\n<pre>xxd -l 0x40 -c 9 secret.txt<\/pre>\n<p>\u5728\u6240\u6709\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0cxxd\u90fd\u662f\u901a\u8fc7\u7a7a\u683c\u8ba1\u6570\u6bcf\u4e2a\u5b57\u7b26\u6765\u4e3a\u6587\u4ef6\u521b\u5efa\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\u7684\u3002<br \/>\n\u7eaf16\u8fdb\u5236\u8f6c\u50a8\uff1a\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u201c-ps\u201d\u9009\u9879\uff0c\u4ee5 postscript\u7684\u8fde\u7eed16\u8fdb\u5236\u8f6c\u50a8\u8f93\u51fa\u3002\u8fd9\u91cc\u6211\u4eec\u5c06\u5176\u8f93\u51fa\u4fdd\u5b58\u5728hex\u6587\u4ef6\u4e2d\uff0c\u4ee5\u83b7\u53d6secret.txt\u6587\u4ef6\u7684\u7eaf16\u8fdb\u5236\u8f6c\u50a8\u3002\u4e3a\u4e86\u9a8c\u8bc1\u7ed3\u679c\uff0c\u6211\u4eec\u4f7f\u7528cat\u547d\u4ee4\u4ecehex\u6587\u4ef6\u4e2d\u8bfb\u53d6\u8f93\u51fa\u3002<br \/>\nxxd -ps secret.txt > hex cat hex<br \/>\n\u4ece\u4e0b\u56fe\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053xxd\u662f\u5982\u4f55\u4e3a\u201csecret.txt\u201d\u6587\u4ef6\uff0c\u521b\u5efa\u7eaf\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\u7684\u3002<br \/>\n\u8fd8\u539f\u6587\u4ef6\uff1a\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u201c-r\u201d\u9009\u9879\uff0c\u6765\u8fd8\u539f\u8f6c\u6362\u7684\u6587\u4ef6\u5185\u5bb9\u3002\u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4f7f\u7528\u4e86\u201c-r -p\u201d\u5c06\u7eaf\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\u7684\u53cd\u5411\u8f93\u51fa\u6253\u5370\u4e3a\u4e86ASCII\u683c\u5f0f\u3002<\/p>\n<pre>xxd -r -p hex<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-4.jpg\" alt=\"\" width=\"640\" height=\"406\" class=\"aligncenter size-full wp-image-156168\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-4.jpg 640w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-4-300x190.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><br \/>\n\u5206\u7ec4\u5927\u5c0f\u5b57\u8282\uff1a\u5982\u679c\u6211\u4eec\u9700\u8981\u5c06\u8f93\u51fa\u5206\u7ec4\u4e3a\u591a\u4e2a\u516b\u4f4d\u5b57\u8282\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u201c-g\u201d\u9009\u9879\u6765\u5b9e\u73b0\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4e3a2\u3002\u56e0\u6b64\uff0c\u5982\u679c\u6211\u4eec\u5c06\u503c\u8bbe\u4e3a4\uff0c\u90a3\u4e48\u5b83\u5c06\u88ab\u5206\u7ec4\u4e3a8\u4f4d\u3002<br \/>\n\u5728\u4e0b\u56fe\u4e2d\u6211\u4eec\u5c06\u503c\u8bbe\u4e3a8\uff0c\u5b83\u5c06\u5206\u7ec4\u4e3a16\u4f4d\u4f5c\u4e3a\u8f93\u51fa\u4ee5\u7b80\u5316\u7ed3\u679c\u3002<\/p>\n<pre>xxd -l 0x30 -g 8 secret.txt<\/pre>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>SUID Lab \u8bbe\u7f6e<\/strong><\/span><\/div>\n<p>SUID\u7279\u6b8a\u6743\u9650\u662f\u4ee5\u547d\u4ee4\u7684\u6240\u6709\u8005\u6743\u9650\u6765\u8fd0\u884c\u8fd9\u4e00\u547d\u4ee4\u7684\uff0c\u800c\u4e0d\u662f\u4ee5\u6267\u884c\u8005\u7684\u6743\u9650\u6765\u8fd0\u884c\u8be5\u547d\u4ee4\u3002\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u5728xxd\u4e0a\u542f\u7528SUID\u6743\u9650\uff0c\u8fd9\u6837\u672c\u5730\u7528\u6237\u5c31\u6709\u673a\u4f1a\u5229\u7528xxd\u6765\u83b7\u53d6root\u6743\u9650\u3002<br \/>\n\u952e\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u542f\u7528SUID\u4f4d\uff1a<\/p>\n<pre>which xxd chmod u+s \/usr\/bin\/xxd ls -al \/usr\/bin\/xxd<\/pre>\n<div   id="j6sjwn9j3u"    style=\"margin-top:2em;margin-bottom:1em\"><span style=\"color:#1E1E1E;letter-spacing: 2px;border-left:#FF3030 3px solid;border-right:#FF3030 3px solid;padding-left: 8px;padding-right:8px;font-size: 12pt\"><strong>SUID \u5229\u7528<\/strong><\/span><\/div>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u5c06\u901a\u8fc7\u7279\u6b8a\u6743\u9650\u4f4dSUID\u6765\u5229\u7528xxd\u670d\u52a1\u3002\u4e3a\u6b64\uff0c\u6211\u521b\u5efa\u4e86\u4e00\u4e2a\u53d7\u5bb3\u8005\u673a\u5668\u7684\u4f1a\u8bdd\uff0c\u8fd9\u5c06\u5141\u8bb8\u6211\u4eec\u5229\u7528\u76ee\u6807\u7cfb\u7edf\u7684\u672c\u5730\u7528\u6237\u8bbf\u95ee\u3002<br \/>\n\u8ba9\u6211\u4eec\u4f7f\u7528ssh\u8fde\u63a5\u5230\u76ee\u6807\u673a\u5668\uff0c\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n<pre>ssh test@192.168.1.103<\/pre>\n<p>\u6210\u529f\u8bbf\u95ee\u53d7\u5bb3\u8005\u673a\u5668\u540e\uff0c\u6211\u4eec\u4f7f\u7528find\u547d\u4ee4\u6765\u67e5\u627e\u5177\u6709SUID\u6743\u9650\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\u3002<\/p>\n<pre>find \/ -perm -u=s -type f 2>\/dev\/null<\/pre>\n<p>\u8fd9\u91cc\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6709\u8bb8\u591a\u4e8c\u8fdb\u5236\u6587\u4ef6\u5177\u6709SUID\u4f4d\uff0c\u4f46\u6211\u4eec\u91cd\u70b9\u5173\u6ce8\/usr\/bin\/xxd\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-5.jpg\" alt=\"\" width=\"640\" height=\"522\" class=\"aligncenter size-full wp-image-156169\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-5.jpg 640w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-5-300x245.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><br \/>\n\u5728xxd\u4e0a\u83b7\u5f97\u7279\u6b8a\u6743\u9650\u4f4dSUID\uff0c\u6211\u4eec\u5c06\u83b7\u53d6\u7528\u4e8e\u63d0\u53d6\u5bc6\u7801\u54c8\u5e0c\u6587\u4ef6\u7684shadow\u6587\u4ef6\u3002<br \/>\n\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u6211\u5df2\u8bf7\u6c42\u901a\u8fc7\u4f7f\u7528xxd\u66b4\u9732\/etc\/shadow\u6587\u4ef6\uff0c\u5b83\u5c06\u4e3a\u8be5\u6587\u4ef6\u751f\u6210\u5341\u516d\u8fdb\u5236\u8f6c\u50a8\uff0c\u5e76\u901a\u8fc7\u7ba1\u9053\u4f20\u8f93xxd\u547d\u4ee4\u6765\u6062\u590d\u5176\u8f93\u51fa\u3002<\/p>\n<pre>xxd \"\/etc\/shadow\" \/ xxd -r<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-6.jpg\" alt=\"\" width=\"536\" height=\"787\" class=\"aligncenter size-full wp-image-156170\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-6.jpg 536w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-6-204x300.jpg 204w\" sizes=\"auto, (max-width: 536px) 100vw, 536px\" \/><br \/>\n\u73b0\u5728\uff0c\u6211\u5c06\u4f7f\u7528john the ripper\u8fd9\u6b3e\u5de5\u5177\u6765\u7834\u89e3\u54c8\u5e0c\u5bc6\u7801\u3002\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u83b7\u53d6\u7528\u6237\u51ed\u636e\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<pre>john hash<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-7.jpg\" alt=\"\" width=\"522\" height=\"297\" class=\"aligncenter size-full wp-image-156171\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-7.jpg 522w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2019\/08\/nfs111111-7-300x171.jpg 300w\" sizes=\"auto, (max-width: 522px) 100vw, 522px\" \/><br \/>\n\u83b7\u53d6\u51ed\u636e\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5207\u6362\u7528\u6237\u4e86\u3002\u9996\u5148\uff0c\u6211\u4eec\u6765\u68c0\u67e5\u4e0b\u7528\u6237\u7684sudo\u6743\u9650\uff1araj\uff0c\u53d1\u73b0\u7528\u6237\u201craj\u201d\u5177\u6709\u6240\u6709\u6743\u9650\u3002<\/p>\n<pre>su raj sudo -l sudo su<\/pre>\n<p>\u56e0\u6b64\uff0c\u8ba9\u6211\u4eec\u76f4\u63a5\u5207\u6362\u5230root\u7528\u6237\u5e10\u6237\uff0c\u5e76\u8bbf\u95eeroot shell\u3002\u81f3\u6b64\uff0c\u6211\u4eec\u5df2\u6210\u529f\u5229\u7528xxd\u547d\u4ee4\u63d0\u5347\u4e86\u6211\u4eec\u7684\u7528\u6237\u6743\u9650\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u77e5\u9053\u5982\u679c\u60f3\u8981\u5c06\u67d0\u4e2a\u6587\u4ef6\u8f6c\u6362\u6210\u53e6\u4e00\u79cd\u683c\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u4e00\u4e9b\u5728\u7ebf\u7684\u8f6c\u6362\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5c06\u4e00\u4e2a\u6587\u4ef6\u8f6c\u6362\u6210 [&hellip;]<\/p>\n","protected":false},"author":1893,"featured_media":156172,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-156164","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\/156164","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\/1893"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=156164"}],"version-history":[{"count":1,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/156164\/revisions"}],"predecessor-version":[{"id":156173,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/156164\/revisions\/156173"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/156172"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=156164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=156164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=156164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}