Executive Summary

Summary
Title New Shibboleth 1.x packages fix potential code execution
Informations
Name DSA-1896 First vendor Publication 2009-09-28
Vendor Debian Last vendor Modification 2009-09-28
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Several vulnerabilities have been discovered in the opensaml and shibboleth-sp packages, as used by Shibboleth 1.x:

Chris Ries discovered that decoding a crafted URL leads to a crash (and potentially, arbitrary code execution).

Ian Young discovered that embedded NUL characters in certificate names were not correctly handled, exposing configurations using PKIX trust validation to impersonation attacks.

Incorrect processing of SAML metadata ignored key usage constraints.

For the old stable distribution (etch), these problems have been fixed in version 1.3f.dfsg1-2+etch1 of the shibboleth-sp packages, and version 1.1a-2+etch1 of the opensaml packages.

For the stable distribution (lenny), these problems have been fixed in version 1.3.1.dfsg1-3+lenny1 of the shibboleth-sp packages, and version 1.1.1-2+lenny1 of the opensaml packages.

The unstable distribution (sid) does not contain Shibboleth 1.x packages.

This update requires restarting the affected services (mainly Apache) to become effective.

We recommend that you upgrade your Shibboleth 1.x packages.

Original Source

Url : http://www.debian.org/security/2009/dsa-1896

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-310 Cryptographic Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3
Application 7
Application 4

OpenVAS Exploits

Date Description
2009-10-19 Name : Debian Security Advisory DSA 1895-2 (opensaml2, shibboleth-sp2)
File : nvt/deb_1895_2.nasl
2009-10-15 Name : Shibboleth Service Provider NULL Character Spoofing Vulnerability (Win)
File : nvt/gb_shibboleth_sp_null_char_spoofing_vuln_win.nasl
2009-10-06 Name : Debian Security Advisory DSA 1896-1 (opensaml, shibboleth-sp)
File : nvt/deb_1896_1.nasl
2009-09-28 Name : Debian Security Advisory DSA 1895-1 (xmltooling)
File : nvt/deb_1895_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
58392 OpenSAML KeyDescriptor Element use Tag Metadata Security Bypass

58378 Shibboleth SSL Certificate Multiple Field Null Byte Handling SSL MiTM Weakness

Nessus® Vulnerability Scanner

Date Description
2010-02-24 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1895.nasl - Type : ACT_GATHER_INFO
2010-02-24 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1896.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:28:51
  • Multiple Updates