CVE-2024-1735
Armeria SAML authentication bypass due to missing validation on unsigned SAML messages
Impact
### Impact The SAML implementation provided by `armeria-saml` currently accepts unsigned SAML messages (assertions, logout requests, etc.) as they are, rather than rejecting them by default. As a result, an attacker can forge a SAML message to authenticate themselves, despite the fact that such an unsigned SAML message should be rejected. ### Patches The vulnerability has been patched in Armeria version 1.27.2. All users who rely on `armeria-saml` older than version 1.27.2 must upgrade to 1.27.2 or later. ### Workarounds There is no known workaround for this vulnerability. ### References [`SamlMessageUtil.validateSignature()`](https://github.com/line/armeria/blob/0efc776988d71be4da6e506ec8a33c2b7b43f567/saml/src/main/java/com/linecorp/armeria/server/saml/SamlMessageUtil.java#L160-L163)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | com.linecorp.armeria:armeria-saml | <= 1.27.1 | 1.27.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linecorp | Armeria | before 1.27.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/line/armeria/security/advisories/GHSA-4m6j-23p2-8c54
- https://github.com/advisories/GHSA-4m6j-23p2-8c54
- https://nvd.nist.gov/vuln/detail/CVE-2024-1735
- https://github.com/line/armeria/commit/b2aa9f49b46a7b0e03d8b8d753809cd1e8e2016c
- https://github.com/line/armeria/blob/0efc776988d71be4da6e506ec8a33c2b7b43f567/saml/src/main/java/com/linecorp/armeria/server/saml/SamlMessageUtil.java#L160-L163
- https://github.com/line/armeria/releases/tag/armeria-1.27.2