CVE-2024-45409: gitlab
Vulnerability summary
CVE-2024-45409 is a critical (CVSS 10.0) vulnerability in gitlab. EPSS estimates a 10.68% chance of exploitation in the next 30 days, higher than 95.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 9Timeline
- 10-09-2024PublishedVulnerability first disclosed.
- 11-11-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated10.0CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · RubygemsEcosystem advisory · calculated10.0CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
10.68%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
0.00 pp
From 10.68% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- ruby-saml< 1.13.0-1+deb12u1 | < 1.11.0-1+deb11u1
Gitlab1 product
- gitlab< 16.11.10 | ≥ 17.0.0, < 17.0.8 | ≥ 17.1.0, < 17.1.8 | ≥ 17.2.0, < 17.2.7 | ≥ 17.3.0, < 17.3.3
Omniauth1 product
- omniauth_saml≤ 1.10.3 | 2.0.0 | 2.1.0
Onelogin1 product
- ruby-saml< 1.12.3 | ≥ 1.13.0, < 1.17.0
RubyGems1 product
- ruby-saml< 1.12.3 | ≥ 1.13.0, < 1.17.0
Saml-toolkits1 product
- ruby-saml< 1.12.3 | ≥ 1.13.0, < 1.17.0
Ubuntu1 product
- ruby-saml< 1.1.2-1ubuntu1+esm1 | < 1.7.2-1ubuntu0.1~esm1 | < 1.11.0-1ubuntu0.1 | < 1.13.0-1ubuntu0.1 | < 1.15.0-1ubuntu0.24.04.1
7 vendors · 7 products
References
18 links- github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-jw9c-mfg7-9rx2X Refsource CONFIRMREPORTWEBVendor Advisory
- github.com/omniauth/omniauth-saml/security/advisories/GHSA-cvp8-5r8g-fhvqX Refsource MISCWEBVendor Advisory
- github.com/SAML-Toolkits/ruby-saml/commit/1ec5392bc506fe43a02dbb66b68741051c5ffeaeX Refsource MISCWEBPatch
- github.com/SAML-Toolkits/ruby-saml/commit/4865d030cae9705ee5cdb12415c654c634093ae7X Refsource MISCWEBPatch
