GoogleOSV:GHSA-4M6J-23P2-8C54Armeria SAML authentication bypass due to missing validation on unsigned SAML messages
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
6.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
9.0%
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
References
github.com/line/armeria
github.com/line/armeria/blob/0efc776988d71be4da6e506ec8a33c2b7b43f567/saml/src/main/java/com/linecorp/armeria/server/saml/SamlMessageUtil.java#L160-L163
github.com/line/armeria/commit/b2aa9f49b46a7b0e03d8b8d753809cd1e8e2016c
github.com/line/armeria/releases/tag/armeria-1.27.2
github.com/line/armeria/security/advisories/GHSA-4m6j-23p2-8c54
nvd.nist.gov/vuln/detail/CVE-2024-1735
Related
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
6.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
9.0%