{"id":29727,"date":"2024-11-25T09:51:23","date_gmt":"2024-11-25T01:51:23","guid":{"rendered":"https:\/\/fwq.ai\/blog\/29727\/"},"modified":"2024-11-25T09:51:23","modified_gmt":"2024-11-25T01:51:23","slug":"phpcms%e6%bc%8f%e6%b4%9e%e4%b9%8b%e9%80%bb%e8%be%91%e9%97%ae%e9%a2%98%e5%af%bc%e8%87%b4getshell","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/29727\/","title":{"rendered":"PHPCMS\u6f0f\u6d1e\u4e4b\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell"},"content":{"rendered":"

\"PHPCMS\u6f0f\u6d1e\u4e4b\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u63d2\u56fe\"<\/strong><\/p>\n

\u5173\u4e8e\u67d0\u5904\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u7684\u4fee\u590d\u95ee\u9898<\/strong><\/p>\n

\u7b80\u4ecb\uff1a\n1. \u6f0f\u6d1e\u540d\u79f0\uff1aphpcms\u67d0\u5904\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\n2. \u8865\u4e01\u6587\u4ef6\uff1a\/phpcms\/libs\/classes\/attachment.class.php\n3. \u8865\u4e01\u6765\u6e90\uff1a\u4e91\u76fe\u81ea\u7814\n4. \u6f0f\u6d1e\u63cf\u8ff0\uff1aphpcms\u7684\/phpcms\/libs\/classes\/attachment.class.php\u4e2d\uff0c\u5bf9\u8f93\u5165\u53c2\u6570$ext\u672a\u8fdb\u884c\u7c7b\u578b\u9650\u5236\uff0c\u5bfc\u81f4\u903b\u8f91\u6f0f\u6d1e\u7684\u4ea7\u751f\u3002\n\u3010\u6ce8\u610f\uff1a\u8be5\u8865\u4e01\u4e3a\u4e91\u76fe\u81ea\u7814\u4ee3\u7801\u4fee\u590d\u65b9\u6848\uff0c\u4e91\u76fe\u4f1a\u6839\u636e\u60a8\u5f53\u524d\u4ee3\u7801\u662f\u5426\u7b26\u5408\u4e91\u76fe\u81ea\u7814\u7684\u4fee\u590d\u6a21\u5f0f\u8fdb\u884c\u68c0\u6d4b\uff0c\u5982\u679c\u60a8\u81ea\u884c\u91c7\u53d6\u4e86\n\u5e95\u5c42\/\u6846\u67b6\u7edf\u4e00\u4fee\u590d\u3001\u6216\u8005\u4f7f\u7528\u4e86\u5176\u4ed6\u7684\u4fee\u590d\u65b9\u6848\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u60a8\u867d\u7136\u5df2\u7ecf\u4fee\u590d\u4e86\u6539\u6f0f\u6d1e\uff0c\u4e91\u76fe\u4f9d\u7136\u62a5\u544a\u5b58\u5728\u6f0f\u6d1e\uff0c\u9047\u5230\u8be5\u60c5\u51b5\n\u53ef\u9009\u62e9\u5ffd\u7565\u8be5\u6f0f\u6d1e\u63d0\u793a\u3011\n\u2026\n\u963f\u91cc\u4e91\u6f0f\u6d1e\u63d0\u793a\u3002<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u89e3\u51b3\u529e\u6cd5\uff1a<\/strong><\/p>\n
1.\u6839\u636e\u6f0f\u6d1e\u63cf\u8ff0\uff0c\u627e\u5230\u5bf9\u5e94\u6587\u4ef6attachment.class.php\u7684\u5bf9\u5e94\u4f4d\u7f6e(\u7b2c144\u884c\u9644\u8fd1)\uff0c\u5e76\u6dfb\u52a0\u8865\u4e01\u4ee3\u7801\u3002<\/p>\n
\u8865\u4e01\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
if($ext !== 'gif|jpg|jpeg|bmp|png'){\n    if(!in_array(strtoupper($ext),array('JPG','GIF','BMP','PNG','JPEG'))) exit('\u9644\u52a0\u6269\u5c55\u540d\u5fc5\u987b\u4e3agif\u3001jpg\u3001jpeg\u3001\n    bmp\u3001png');\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6dfb\u52a0\u540e\u7684\u4ee3\u7801\uff0c\u622a\u56fe\u5982\u4e0b\uff1a<\/p>\n
\"PHPCMS\u6f0f\u6d1e\u4e4b\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u63d2\u56fe1\"<\/p>\n
2.\u7136\u540e\uff0c\u5c06\u4fee\u6539\u597d\u7684\u6587\u4ef6\uff0c\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u5bf9\u5e94\u6587\u4ef6\u4f4d\u7f6e\uff0c\u76f4\u63a5\u8986\u76d6\uff1b<\/p>\n
3.\u6700\u540e\uff0c\u767b\u5f55\u963f\u91cc\u4e91\u540e\u53f0\uff0c\u70b9\u51fb\u9a8c\u8bc1(\u622a\u56fe\u5982\u4e0b)\uff0c\u5373\u53ef\u5b8c\u6210\u6f0f\u6d1e\u4fee\u590d\u3002<\/p>\n
\"PHPCMS\u6f0f\u6d1e\u4e4b\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u63d2\u56fe2\"<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5173\u4e8e\u201c phpcms\u67d0\u5904\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell \u201d\u6f0f\u6d1e\u4fee\u590d\u7684\u5168\u90e8\u5185\u5bb9\u3002<\/p>\n
PHP\u4e2d\u6587\u7f51\uff0c\u5927\u91cf\u7684\u514d\u8d39\uff0c\u6b22\u8fce\u5728\u7ebf\u5b66\u4e60\uff01<\/p>\n
\u4ee5\u4e0a\u5c31\u662fPHPCMS\u6f0f\u6d1e\u4e4b\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5173\u4e8e\u67d0\u5904\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u7684\u4fee\u590d\u95ee\u9898 \u7b80\u4ecb\uff1a 1. \u6f0f\u6d1e\u540d\u79f0\uff1aphpcms\u67d0\u5904\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell 2. \u8865\u4e01\u6587\u4ef6\uff1a\/phpcms\/libs\/classes\/attachment.class.php 3. \u8865\u4e01\u6765\u6e90\uff1a\u4e91\u76fe\u81ea\u7814 4. \u6f0f\u6d1e\u63cf\u8ff0\uff1aphpcms\u7684\/phpcms\/libs\/classes\/attachment.class.php\u4e2d\uff0c\u5bf9\u8f93\u5165\u53c2\u6570$ext\u672a\u8fdb\u884c\u7c7b\u578b\u9650\u5236\uff0c\u5bfc\u81f4\u903b\u8f91\u6f0f\u6d1e\u7684\u4ea7\u751f\u3002 \u3010\u6ce8\u610f\uff1a\u8be5\u8865\u4e01\u4e3a\u4e91\u76fe\u81ea\u7814\u4ee3\u7801\u4fee\u590d\u65b9\u6848\uff0c\u4e91\u76fe\u4f1a\u6839\u636e\u60a8\u5f53\u524d\u4ee3\u7801\u662f\u5426\u7b26\u5408\u4e91\u76fe\u81ea\u7814\u7684\u4fee\u590d\u6a21\u5f0f\u8fdb\u884c\u68c0\u6d4b\uff0c\u5982\u679c\u60a8\u81ea\u884c\u91c7\u53d6\u4e86 \u5e95\u5c42\/\u6846\u67b6\u7edf\u4e00\u4fee\u590d\u3001\u6216\u8005\u4f7f\u7528\u4e86\u5176\u4ed6\u7684\u4fee\u590d\u65b9\u6848\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u60a8\u867d\u7136\u5df2\u7ecf\u4fee\u590d\u4e86\u6539\u6f0f\u6d1e\uff0c\u4e91\u76fe\u4f9d\u7136\u62a5\u544a\u5b58\u5728\u6f0f\u6d1e\uff0c\u9047\u5230\u8be5\u60c5\u51b5 \u53ef\u9009\u62e9\u5ffd\u7565\u8be5\u6f0f\u6d1e\u63d0\u793a\u3011 \u2026 \u963f\u91cc\u4e91\u6f0f\u6d1e\u63d0\u793a\u3002 \u767b\u5f55\u540e\u590d\u5236 \u89e3\u51b3\u529e\u6cd5\uff1a 1.\u6839\u636e\u6f0f\u6d1e\u63cf\u8ff0\uff0c\u627e\u5230\u5bf9\u5e94\u6587\u4ef6attachment.class.php\u7684\u5bf9\u5e94\u4f4d\u7f6e(\u7b2c144\u884c\u9644\u8fd1)\uff0c\u5e76\u6dfb\u52a0\u8865\u4e01\u4ee3\u7801\u3002 \u8865\u4e01\u4ee3\u7801\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b if($ext !== ‘gif|jpg|jpeg|bmp|png’){     if(!in_array(strtoupper($ext),array(‘JPG’,’GIF’,’BMP’,’PNG’,’JPEG’))) exit(‘\u9644\u52a0\u6269\u5c55\u540d\u5fc5\u987b\u4e3agif\u3001jpg\u3001jpeg\u3001     bmp\u3001png’); } \u767b\u5f55\u540e\u590d\u5236 \u6dfb\u52a0\u540e\u7684\u4ee3\u7801\uff0c\u622a\u56fe\u5982\u4e0b\uff1a 2.\u7136\u540e\uff0c\u5c06\u4fee\u6539\u597d\u7684\u6587\u4ef6\uff0c\u4e0a\u4f20\u5230\u670d\u52a1\u5668\u5bf9\u5e94\u6587\u4ef6\u4f4d\u7f6e\uff0c\u76f4\u63a5\u8986\u76d6\uff1b 3.\u6700\u540e\uff0c\u767b\u5f55\u963f\u91cc\u4e91\u540e\u53f0\uff0c\u70b9\u51fb\u9a8c\u8bc1(\u622a\u56fe\u5982\u4e0b)\uff0c\u5373\u53ef\u5b8c\u6210\u6f0f\u6d1e\u4fee\u590d\u3002 \u4ee5\u4e0a\u5c31\u662f\u5173\u4e8e\u201c phpcms\u67d0\u5904\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell \u201d\u6f0f\u6d1e\u4fee\u590d\u7684\u5168\u90e8\u5185\u5bb9\u3002 PHP\u4e2d\u6587\u7f51\uff0c\u5927\u91cf\u7684\u514d\u8d39\uff0c\u6b22\u8fce\u5728\u7ebf\u5b66\u4e60\uff01 \u4ee5\u4e0a\u5c31\u662fPHPCMS\u6f0f\u6d1e\u4e4b\u903b\u8f91\u95ee\u9898\u5bfc\u81f4getshell\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-29727","post","type-post","status-publish","format-standard","hentry","category-cms"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/29727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=29727"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/29727\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=29727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=29727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=29727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}