CVE-2020-12676 Auth bypass in n/a
Attackers can bypass authentication and forge messages by sending SAML assertions without signatures, affecting applications using the fusionauth-samlv2 library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-12676?
CVE-2020-12676 is a critical authentication bypass vulnerability in n/a, published on 2 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FusionAuth fusionauth-samlv2 0.2.3 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack".
Weakness: CWE-347
Which versions are affected by CVE-2020-12676?
It affects 1 product.
Products include Fusionauth Samlv2.
How do I fix CVE-2020-12676?
No fix has been published for CVE-2020-12676 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-2020-12676 being exploited?
There is no known exploitation of CVE-2020-12676 in the wild and no public exploit code.
Sources
Also known as GHSA-qh45-328h-49g4.