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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2007.0562 -- [Cisco] Cisco Unified Call Manager/Unified Presence Java Secure Socket Extension DoS 26 July 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Unified Call Manager versions 5.0 to 6.0 Cisco Unified Presence 6.0 and prior Publisher: Cisco Systems Operating System: Cisco Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2007-3698 Ref: ESB-2007.0515 Original Bulletin: http://www.cisco.com/warp/public/707/cisco-sr-20070725-jsse.shtml - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Response: Vulnerability in Java Secure Socket Extension http://www.cisco.com/warp/public/707/cisco-sr-20070725-jsse.shtml Revision 1.0 For Public Release 2007 July 25 1600 UTC (GMT) +-------------------------------------------------------------------- Cisco Response ============== This is the Cisco PSIRT response to the vulnerability in Java Secure Socket Extension (JSSE) disclosed by Sun Microsystems on July 10, 2007, the details of which are available at http://sunsolve.sun.com/search/document.do?assetkey=1-26-102997-1. There are no workarounds available for this vulnerability. Cisco recommends that customers update all vulnerable applications and components to provide the greatest protection from the listed vulnerability. Cisco will update this document in the event of any changes. Additional Information ====================== Some versions of Sun JSSE do not properly handle certain Transport Layer Security (TLS) or Secure Sockets Layer (SSL) handshake requests. A device running an affected JSSE version will experience excessive CPU usage, which may affect normal device operation and result in a denial of service (DoS) condition. Sun has provided a comprehensive list of affected JSSE versions at the previously listed URL. Please refer to the Sun Alert Notification for details. Products Affected by the JSSE Vulnerability +------------------------------------------ Note: The following list is subject to change. Cisco is continuing to review the potential impact of this vulnerability on its products; this list may be updated to include additional Cisco products that are affected by this vulnerability. The following products are affected by the Sun JSSE issue listed in this Security Response: * Cisco Unified Call Manager - Cisco bug ID is CSCsh63934. Fixed software is available as releases 5.1(2) and 6.0(1). Customers running release 5.0 are advised to migrate to release 5.1(2) or later. Releases before 5.0 are not affected. * Cisco Unified Presence - Cisco bug ID is CSCsi77690. Fixed software is available as release 6.0(1). Customers running earlier versions are advised to migrate to release 6.0(1) or later. Workarounds +---------- There is no workaround for this issue, but mitigation is possible. Cisco Unified CallManager and Cisco Unified Presence customers are advised to restrict access to the administrative interface to the IP addresses of known management stations. Information on how to implement such access restrictions is available at the following link: http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_implementation_design_guide_chapter09186a008085f858.html THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. Revision History ================ +-----------------------------------------------------------+ | Revision 1.0 | 2007-July-25 | Initial public release | +-----------------------------------------------------------+ Cisco Security Procedures ========================= Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at http://www.cisco.com/go/psirt. +-------------------------------------------------------------------- All contents are Copyright (C) 2006-2007 Cisco Systems, Inc. All rights reserved. +-------------------------------------------------------------------- Updated: Jul 25, 2007 Document ID: 97830 +-------------------------------------------------------------------- - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGp29J8NUAbBmDaxQRAquxAJ9DAvYwVb4G11mf5+xVsQ1ZcG55hQCfUwhX Ote8IEVStps8zvcXmh/qZZU= =WCDS - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBRqgSzih9+71yA2DNAQJ1kQP9EUoy4reDzXqNY0DXwVvO/I96pN+H0sV5 yGLd1nB3swhRcFz5B1pBf0y7WE2R2ULG0Z1vQbMmnZq8ouAQY546KcVqk49/FIwd Z+A3UZDiUajdW84rIQz94Dw57y+6tVDbC6vAyni+ZdhGvx+/ZVPXnYbsDqnESVDO FpYp4o5w2p4= =rNaT -----END PGP SIGNATURE-----