Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1oeDVxLXY2cGotNTMzcs4AA5go

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

SamlMessageUtil.validateSignature()

Permalink: https://github.com/advisories/GHSA-hx5q-v6pj-533r
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1oeDVxLXY2cGotNTMzcs4AA5go
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: 2 months ago
Updated: 2 months ago

CVSS Score: 9.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Identifiers: GHSA-hx5q-v6pj-533r
References:

• https://github.com/line/armeria/security/advisories/GHSA-4m6j-23p2-8c54
• https://github.com/line/centraldogma/security/advisories/GHSA-hx5q-v6pj-533r
• https://github.com/line/centraldogma/commit/16903426be2e954c050b3ee47b8c38ee3218f0eb
• https://github.com/line/centraldogma/commit/16903426be2e954c050b3ee47b8c38ee3218f0ebxz
• https://github.com/line/centraldogma/releases/tag/centraldogma-0.64.3
• https://github.com/advisories/GHSA-hx5q-v6pj-533r

Repository: https://github.com/line/armeria
Blast Radius: 1.0

Affected Packages