Cisco Unified Communications Manager SIP INVITE packet denial of service

cucm-sip-packet-dos (42418) The risk level is classified as MediumMedium Risk

Description:

Cisco Unified Communications Manager is vulnerable to a denial of service, caused by the improper handling of SIP INVITE packets. By sending a specially-crafted SIP INVITE message, a remote attacker could exploit this vulnerability to cause the service to become unresponsive and eventually restart.

*CVSS:

Base Score: 7.8
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 5.8
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to cisco-sa-20080514-cucmdos for patch, upgrade or suggested workaround information. See References.

References:

  • cisco-sa-20080514-cucmdos: Cisco Unified Communications Manager Denial of Service Vulnerabilities.
  • BID-29221: Cisco Unified Communications Manager Multiple Denial of Service Vulnerabilities
  • CVE-2008-1747: Unspecified vulnerability in Cisco Unified Communications Manager 4.1 before 4.1(3)SR6, 4.2 before 4.2(3)SR3, 4.3 before 4.3(2), 5.x before 5.1(3), and 6.x before 6.1(1) allows remote attackers to cause a denial of service (CCM service restart) via an unspecified SIP INVITE message, aka Bug ID CSCsk46944.
  • OSVDB ID: 45204: Cisco Unified Communications Manager SIP INVITE Handling Remote DoS (CSCsk46944)
  • SA30238: Cisco Unified Communications Manager Multiple Denial of Service
  • SECTRACK ID: 1020022: Cisco Unified Communications Manager Bugs in CTL CAPF, SIP, and SNMP Services Let Remote Users Deny Service
  • VUPEN/ADV-2008-1533: Cisco Unified Communications Manager Denial of Service Vulnerabilities

Platforms Affected:

  • Cisco Unified Communications Manager 4.1
  • Cisco Unified Communications Manager 4.2
  • Cisco Unified Communications Manager 4.3
  • Cisco Unified Communications Manager 5.0
  • Cisco Unified Communications Manager 5.1
  • Cisco Unified Communications Manager 5.1(1)
  • Cisco Unified Communications Manager 5.1(2)
  • Cisco Unified Communications Manager 5.1(2b)
  • Cisco Unified Communications Manager 6.0
  • Cisco Unified Communications Manager 6.0(1a)
  • Cisco Unified Communications Manager 6.1(1a)

Reported:

May 14, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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