Authentication Bypass by Alternate Name in Sustainsys.Saml2 - CVE-2023-41890

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Main Vulnerability Database Vulnerabilities #VU80923

Authentication Bypass by Alternate Name in Sustainsys.Saml2 - CVE-2023-41890

Published: September 20, 2023


Vulnerability identifier: #VU80923
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-41890
CWE-ID: CWE-289
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to insufficient identity provider issuer validation. A remote attacker can craft a Saml2 response that is processed as if issued by another identity provider or cause stored state intended for one identity provider to be used when processing the response from another provider.


Affected software

Sustainsys.Saml2
Pleasanter

How to mitigate CVE-2023-41890

Install updates from vendor's website.

Sustainsys.Saml2 - addressed in versions 1.0.3, 2.9.2
Pleasanter - update to 1.3.47.0

External References

Related Security Bulletins