CVE-2022-41912 crewjam/saml go library is vulnerable to signature bypass via multiple Assertion elements

What is CVE-2022-41912?

CVE-2022-41912 is a critical authentication bypass vulnerability in crewjam saml, published on 28 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The crewjam/saml go library prior to version 0.4.9 is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements. This issue has been corrected in version 0.4.9. There are no workarounds other than upgrading to a fixed version.

Weakness: CWE-287

Which versions are affected by CVE-2022-41912?

3 open source packages ship an affected version, including github.com/crewjam/saml. It affects 1 product.

Products include Saml Project Saml.

How do I fix CVE-2022-41912?

Upgrade github.com/crewjam/saml to 0.4.9 or later.

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

Is CVE-2022-41912 being exploited?

There is no known exploitation of CVE-2022-41912 in the wild and no public exploit code.

Other vulnerabilities in crewjam saml

• CVE-2023-28119 crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb High 7.5
• CVE-2023-45683 Cross site scripting via missing binding syntax validation In ACS location in github.com/crewjam/saml High 7.1

Sources

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

Also known as GHSA-j2jp-wvqg-wc2g, GO-2022-1129, UBUNTU-CVE-2022-41912.