漏洞信息
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Vulnerability Title
FOSSBilling's password reset confirmation endpoint lacks rate limiting
Vulnerability Description
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint `/client/reset-password-confirm/:hash` is handled by a non-API controller and is not covered by FOSSBilling's rate limiter, which only applies to `/api/*` routes. This allows an attacker to probe the endpoint for valid reset tokens without any per-IP request limiting, attempt counting, or lockout mechanism. The endpoint acts as an oracle, returning a distinguishable response for valid versus invalid tokens (HTTP 200 vs HTTP 302 redirect). An attacker can submit unlimited token guesses to the password reset confirmation endpoint with no throttling applied. However, practical exploitability is significantly mitigated by the current token generation, which uses `hash('sha256', random_bytes(32))`, providing 256 bits of entropy. Tokens also expire after 15 minutes and are deleted after successful use. The same architectural gap applies to other controller-served auth routes, including `/staff/email/:hash` (admin password reset confirmation) and `/client/confirm-email/:hash` (email confirmation). Version 0.8.0 fixes the issue. Some workarounds are available. Configure a reverse proxy (e.g., Nginx, Apache, Cloudflare) to apply per-IP rate limiting to the `/client/reset-password-confirm/*` and `/staff/email/*` paths and/or use a WAF rule to limit request rates to these endpoints.
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
响应差异性信息暴露
Vulnerability Title
FOSSBilling 安全漏洞
Vulnerability Description
FOSSBilling是FOSSBilling开源的一个面向主机服务商和数字服务提供商的计费与客户管理平台。 FOSSBilling 0.8.0之前版本存在安全漏洞,该漏洞源于密码重置确认端点未受速率限制器保护,允许攻击者探测有效重置令牌,但实际利用受限于令牌生成的高熵值和短有效期。
CVSS Information
N/A
Vulnerability Type
N/A