Vulnerability in blueprintue-self-hosted-edition

[ Description ]Official description

BlueprintUE Self-Hosted Edition 4.2.0 before 4.3.4 contains a login rate limit bypass vulnerability in LoginMiddleware.php that keys failed-login counters on case-sensitive usernames. Unauthenticated attackers can vary username casing against case-insensitive MySQL lookups to get extra attempts and brute-force passwords past the per-account lockout.

[ 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/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.3/app/middlewares/Logi…
• github.com/blueprintue/blueprintue-self-hosted-edition/commit/bd4af38d2f7d499be23fc4106…
• github.com/blueprintue/blueprintue-self-hosted-edition/pull/267
• github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.4
• github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-773r-58…
• www.vulncheck.com/advisories/blueprintue-self-hosted-edition-4.2.0-before-4.3.4-login-r…