漏洞信息
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Vulnerability Title
Flag Forge has ReDoS Vulnerability in User Profile Lookup API
Vulnerability Description
Flag Forge is a Capture The Flag (CTF) platform. Versions 2.3.2 and below have a Regular Expression Denial of Service (ReDoS) vulnerability in the user profile API endpoint (/api/user/[username]). The application constructs a regular expression dynamically using unescaped user input (the username parameter). An attacker can exploit this by sending a specially crafted username containing regex meta-characters (e.g., deeply nested groups or quantifiers), causing the MongoDB regex engine to consume excessive CPU resources. This can lead to Denial of Service for other users. The issue is fixed in version 2.3.3. To workaround this issue, implement a Web Application Firewall (WAF) rule to block requests containing regex meta-characters in the URL path.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
CWE-1333
Vulnerability Title
Flag Forge 安全漏洞
Vulnerability Description
Flag Forge是FlagForge开源的一个易于使用的CTF平台。 Flag Forge 2.3.2及之前版本存在安全漏洞,该漏洞源于用户资料API端点存在正则表达式拒绝服务问题。
CVSS Information
N/A
Vulnerability Type
N/A