Vulnerability in GitLab
CVE-2024-45409
The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/Assertion with arbitrary contents. This would allow the attacker to log in as arbitrary user within the vulnerable system. This vulnerability is fixed in 1.17.0 and 1.12.3.
EPSS: 0.107 (95.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Gitlab
- Omniauth Omniauth_saml — versions 2.0.0, 2.1.0
- Onelogin Ruby-saml
- Saml-toolkits Ruby-saml — versions < 1.12.3, >= 1.13.0, < 1.17.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-45409?
- CVE-2024-45409 is a critical-severity vulnerability in GitLab, classified under Improper Verification of Cryptographic Signature. CVSS score: 10.0/10. Published 2024-09-10.
- How severe is CVE-2024-45409?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2024-45409 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.