CVE-2024-21492 Insufficient Session Expiration in github.com/greenpau/caddy-security

What is CVE-2024-21492?

CVE-2024-21492 is a medium-severity authentication bypass vulnerability in github.com/greenpau/caddy-security, published on 17 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

All versions of the package github.com/greenpau/caddy-security are vulnerable to Insufficient Session Expiration due to improper user session invalidation upon clicking the "Sign Out" button. User sessions remain valid even after requests are sent to /logout and /oauth2/google/logout. Attackers who gain access to an active but supposedly logged-out session can perform unauthorized actions on behalf of the user.

Weakness: CWE-613

Which versions are affected by CVE-2024-21492?

3 open source packages ship an affected version, including github.com/greenpau/caddy-security. It affects 1 product.

Products include Authcrunch Caddy-Security.

How do I fix CVE-2024-21492?

No fix has been published for CVE-2024-21492 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2024-21492 being exploited?

There is no known exploitation of CVE-2024-21492 in the wild and no public exploit code.

Other vulnerabilities in github.com/greenpau/caddy-security

• CVE-2024-21496 Cross-site Scripting in github.com/greenpau/caddy-security Medium 6.1
• CVE-2023-52430 caddy-security plugin for Caddy vulnerable to reflected Cross-site Scripting Medium 5.4
• CVE-2024-21498 Server-Side Request Forgery in github.com/greenpau/caddy-security Medium 5.3
• CVE-2024-21500 Improper Restriction of Excessive Authentication Attempts in github.com/greenpau/caddy-security Medium 4.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vp66-gf7w-9m4x, GO-2024-2557.