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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.0975 Apache Tomcat - Multiple weaknesses in HTTP DIGEST authentication 27 September 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Tomcat 7.0.0 to 7.0.11 Tomcat 6.0.0 to 6.0.32 Tomcat 5.5.0 to 5.5.33 Publisher: Apache Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Unauthorised Access -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2011-1184 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 CVE-2011-1184 Apache Tomcat - Multiple weaknesses in HTTP DIGEST authentication Severity: Moderate Vendor: The Apache Software Foundation Versions Affected: - - - Tomcat 7.0.0 to 7.0.11 - - - Tomcat 6.0.0 to 6.0.32 - - - Tomcat 5.5.0 to 5.5.33 - - - Earlier, unsupported versions may also be affected Description: The implementation of HTTP DIGEST authentication was discovered to have several weaknesses: - - - replay attacks were permitted - - - server nonces were not checked - - - client nonce counts were not checked - - - qop values were not checked - - - realm values were not checked - - - the server secret was hard-coded to a known string The result of these weaknesses is that DIGEST authentication was only as secure as BASIC authentication. Mitigation: Users of Tomcat 7.0.x should upgrade to 7.0.12 or later Users of Tomcat 6.0.x should upgrade to 6.0.33 or later Users of Tomcat 5.5.x should upgrade to 5.5.34 or later Credit: This issue was identified by the Apache Tomcat security team References: http://tomcat.apache.org/security.html http://tomcat.apache.org/security-7.html http://tomcat.apache.org/security-6.html http://tomcat.apache.org/security-5.html - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOgF0tAAoJEBDAHFovYFnnv70QALdoVwivDt9bXBEpMgjJ0/NY kadCFsA/X+O8TEKTRx/85B54Spgv8dGJFiPMettdbfjFuq7ADsRiAbxsZQ3dEIfJ esrWfPJRTpXhjKU1OOLmoDvoueAD0pD7/qvl8o9bFowxGXLWqvO/elFe+4AH2YjZ ux9tWOlWn46Q7ffaNOzRebjPVIQ3ebB+FH9ToZAdNfFFIZbtxYRMV02wRfHWq+fU kTJ+hKF0XOpzyIut3zkmE00ZuvGAPLdnZcMKq9m/X/dt/niP2nT8H28Xx1Zu8sW+ CUE7CRse4pI6fGuXVrOAk1akyN/hkiSPxDNsDnHxALTNmjr1Z+DAs7QT5IKc3EDv NeSXAnxKfIJ83jcjam1bEf38UN1uYatP/u6XJCVpnOr0UjJ9wtO+QgSV/93eiyD7 YCpVcmKay/jvWmLPp7MRB+h6FGhJNw5OA5k7IWJePBXC39p6tpac3vsOKx1OGU38 QKUglIro/TtZo7gmfeG8lD3lI493l25+3E/vBiSrbfSHua3bmyFQikQMhy2ZPYIt 4wEfdaW4hUBJHpxkDaotuTTN8ATzQLtDNTGei2u76ZXQiOjTLUDGam++6fR+kfZU gloAy8ZIS702hoXg/ypFPtcyIx435dOgxtGIbOedmDUsy1ErGTCAksrOyn2yZl3v +Ew0bAULNmXwKQeMyDj0 =u/Ai - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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