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Fencer Intel
medium 4.3

CVE-2015-1796 json

Improper Certificate Validation in Shibboleth Identity Provider and OpenSAML

published 11y ago modified 4mo ago also GHSA-78fq-w796-q537 , EUVD-2022-2952

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

The PKIX trust engines in Shibboleth Identity Provider before 2.4.4 and OpenSAML Java (OpenSAML-J) before 2.6.5 trust candidate X.509 credentials when no trusted names are available for the entityID, which allows remote attackers to impersonate an entity via a certificate issued by a shibmd:KeyAuthority trust anchor.

Patch / fix

  • maven org.opensaml:opensaml 2.6.5
  • maven edu.internet2.middleware:shibboleth-identityprovider 2.4.4

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-1796 updated cvss 6.3

Java: PKIX Trust Engines Exhibit Critical Flaw In Trusted Names Evaluation

  • Red Hat JBoss Data Grid 6 opensaml-java opensaml-java Red Hat JBoss Data Virtualization 6 opensaml opensaml Red Hat JBoss Enterprise Application Platform 5 opensaml opensaml Red Hat JBoss Enterprise Application Platform 6 opensaml opensaml Red Hat JBoss Fuse Service Works 6 opensaml opensaml Red Hat JBoss Operations Network 3 opensaml opensaml
    +2 more products
    Red Hat JBoss Portal 5 opensaml opensaml Red Hat JBoss Portal 6 opensaml opensaml
    affected: no fix available
  • Red Hat JBoss A-MQ 6.2
    fixed: vendor fix RHSA-2015:1177
  • Red Hat JBoss Fuse 6.2
    fixed: vendor fix RHSA-2015:1176

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected packages

ecosystem package affected fixed in
maven org.opensaml:opensaml
<2.6.5
2.6.5
maven edu.internet2.middleware:shibboleth-identityprovider
<2.4.4
2.4.4

Classification

Weakness
  • CWE-254 7PK - Security Features
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.