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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade ruby-saml | Sep 23, 2024 | Sep 10, 2024 |
| Freebsd | — | Upgrade gitlab-eeUpgrade gitlab-ce | Sep 20, 2024 | Sep 18, 2024 |
| Ubuntu | — | Upgrade ruby-samlUpgrade ruby-saml (Ubuntu Pro) | Mar 3, 2025 | Sep 10, 2024 |
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