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Improper Validation of Certificate with Host Mismatch in Shibboleth Identity Provider and OpenSAML Java

Moderate severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

maven edu.internet2.middleware:shibboleth-identityprovider (Maven)

Affected versions

< 2.4.1

Patched versions

2.4.1
maven org.opensaml:opensaml (Maven)
< 2.6.2
2.6.2

Description

The (1) HttpResource and (2) FileBackedHttpResource implementations in Shibboleth Identity Provider (IdP) before 2.4.1 and OpenSAML Java 2.6.2 do not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

References

Published by the National Vulnerability Database Apr 4, 2019
Published to the GitHub Advisory Database May 14, 2022
Reviewed Jul 7, 2022
Last updated Jan 27, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.080%
(36th percentile)

Weaknesses

CVE ID

CVE-2014-3603

GHSA ID

GHSA-rm7v-gqfg-p2wc

Source code

No known source code
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