CVE-2013-6440

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-02-14 · updated 2026-06-17
Weakness: CWE-200

Description

The (1) BasicParserPool, (2) StaticBasicParserPool, (3) XML Decrypter, and (4) SAML Decrypter in Shibboleth OpenSAML-Java before 2.6.1 set the expandEntityReferences property to true, which allows remote attackers to conduct XML external entity (XXE) attacks via a crafted XML DOCTYPE declaration.

Affected products

Internet2 Opensaml: 2.0, 2.1.0, 2.2.0
Shibboleth Opensaml: through 2.6.0; 2.4.0, 2.4.1, 2.4.2, 2.4.3, 2.5.0, 2.5.1 (+2)

References

http://blog.sendsafely.com/post/69590974866/web-based-single-sign-on-and-the-dangers-of-saml-xml
http://rhn.redhat.com/errata/RHSA-2014-0170.html
http://rhn.redhat.com/errata/RHSA-2014-0171.html
http://rhn.redhat.com/errata/RHSA-2014-0172.html
http://rhn.redhat.com/errata/RHSA-2014-0195.html
http://shibboleth.net/community/advisories/secadv_20131213.txt
https://bugzilla.redhat.com/show_bug.cgi?id=1043332
https://www.oracle.com/security-alerts/cpujan2022.html
http://blog.sendsafely.com/post/69590974866/web-based-single-sign-on-and-the-dangers-of-saml-xml
http://rhn.redhat.com/errata/RHSA-2014-0170.html
http://rhn.redhat.com/errata/RHSA-2014-0171.html
http://rhn.redhat.com/errata/RHSA-2014-0172.html

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