PT-2009-5768 · Internet2 · Shibboleth Service Provider

Chris Ries

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Published

2009-09-29

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Updated

2009-09-30

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CVE-2009-3475

CVSS v2.0

7.5

High

VectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Name of the Vulnerable Software and Affected Versions Internet2 Shibboleth Service Provider software versions 1.3.x through 1.3.2 Internet2 Shibboleth Service Provider software versions 2.x through 2.2.0
Description The issue arises when the software uses PKIX trust validation and fails to properly handle a '0' character in the subject or subjectAltName fields of a certificate. This allows remote attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Recommendations For versions 1.3.x through 1.3.2, update to version 1.3.3 or later. For versions 2.x through 2.2.0, update to version 2.2.1 or later.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2009-3475
DSA-1895-1
DSA-1895-2
DSA-1896-1

Affected Products

Shibboleth Service Provider