Vulnerability in pecee simple-router

[ Description ]Official description

simple-php-router through 5.4.1.7 contains an IP restriction bypass vulnerability in the IpRestrictAccess middleware that allows remote unauthenticated attackers to bypass IP whitelist and blacklist protections. Attackers can spoof X-Forwarded-For, CF-Connecting-IP, or Client-IP headers to impersonate whitelisted addresses or evade blacklists, gaining access to IP-restricted routes.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/skipperbent/simple-php-router
• github.com/skipperbent/simple-php-router/blob/5.4.1.7/src/Pecee/Http/Middleware/IpRestr…
• github.com/skipperbent/simple-php-router/blob/5.4.1.7/src/Pecee/Http/Request.php
• github.com/skipperbent/simple-php-router/issues/727
• www.vulncheck.com/advisories/simple-php-router-through-5.4.1.7-ip-restriction-bypass-vi…