Cisco Multiple Products H.323 Protocol Denial of Service Vulnerabilities - Secunia Advisories - Vulnerability Intelligence

Cisco Multiple Products H.323 Protocol Denial of Service Vulnerabilities
Secunia Advisory:	SA10610	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2004-01-13
Last Update:	2004-01-14
Popularity:	12,974 views

Critical:	Moderately critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

OS:	Cisco ATA 180 Series Analog Telephone Adaptors Cisco BTS 10200 Softswitch Cisco IOS 11.x Cisco IOS 12.x Cisco IOS R11.x Cisco IOS R12.x

Software:	Cisco Conference Connection (CCC) 1.x Cisco Internet Service Node (ISN) 2.x Cisco IP Phone 7900 Series Cisco Unified CallManager 3.x

Subscribe:	Instant alerts on relevant vulnerabilities

Description: Multiple Cisco products contain vulnerabilities in the H.323 protocol implementation, which can be exploited by malicious people to cause a DoS (Denial of Service). The vulnerabilities are caused due to various errors in the processing of H.225.0 and Q.931 messages over TCP, which can be exploited by sending specially crafted messages to an affected system (default port 1720/tcp). Successful exploitation may crash or reboot vulnerable devices and applications or cause them to consume 100% CPU resources. The vulnerabilities affect the following products with H.323 support: * Cisco IOS 11.3T and later versions * Cisco CallManager versions 3.0 through 3.3 * Cisco Conference Connection (CCC) * Cisco Internet Service Node (ISN) * Cisco BTS 10200 Softswitch * Cisco 7905 IP Phone H.323 Software Version 1.00 * Cisco ATA 18x series products running H.323/SIP loads with versions earlier than 2.16.1 Solution: See patch matrices and workarounds in original advisory: http://www.cisco.com/warp/public/707/cisco-sa-20040113-h323.shtml#software http://www.cisco.com/warp/public/707/cisco-sa-20040113-h323.shtml#workarounds Provided and/or discovered by: NISCC Changelog: 2004-01-14: Added link to CERT advisory. Original Advisory: Cisco: http://www.cisco.com/warp/public/707/cisco-sa-20040113-h323.shtml NISCC: http://www.uniras.gov.uk/vuls/2004/006489/h323.htm Other References: CERT advisory: http://www.cert.org/advisories/CA-2004-01.html

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