Headline
GHSA-hx5q-v6pj-533r: SAML authentication bypass due to missing validation on unsigned SAML messages
Impact
When SAML is used as the authentication mechanism, Central Dogma 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 Central Dogma 0.64.3 by updating its Armeria dependency to 1.27.2. All users who use SAML as the authentication mechanism must upgrade from 0.64.3 or later.
Workarounds
A user can manually upgrade the armeria-saml module with the one from Armeria 1.27.2 or later, either by replacing the JAR in the Central Dogma distribution or by updating the dependency tree of the build.
References
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- GitHub Advisory Database
- GitHub Reviewed
- GHSA-hx5q-v6pj-533r
SAML authentication bypass due to missing validation on unsigned SAML messages
Critical severity GitHub Reviewed Published Feb 26, 2024 in line/centraldogma • Updated Feb 26, 2024
Package
maven com.linecorp.centraldogma:centraldogma-server-auth-saml (Maven)
Affected versions
<= 0.64.2
Description
Published to the GitHub Advisory Database
Feb 26, 2024
Last updated
Feb 26, 2024