Cisco Unified Communications Manager CTLProvider.exe buffer overflow

cisco-cucm-ctl-bo (39704) The risk level is classified as HighHigh Risk

Description:

Cisco Unified Communications Manager deployed in secure mode is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by CTLProvider.exe. By sending an overly long request to TCP port 2444, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the service to crash.

*CVSS:

Base Score: 10
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 7.4
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to cisco-sa-20080116-cucmctl for patch, upgrade, or suggested workaround information. See References.

References:

  • cisco-sa-20080116-cucmctl: Cisco Unified Communications Manager CTL Provider Heap Overflow.
  • TPTI-08-02: Cisco Call Manager CTLProvider Heap Overflow Vulnerability.
  • BID-27313: Cisco Unified Communications Manager CTL Provider Heap Buffer Overflow Vulnerability
  • CVE-2008-0027: Heap-based buffer overflow in the Certificate Trust List (CTL) Provider service (CTLProvider.exe) in Cisco Unified Communications Manager (CUCM) 4.2 before 4.2(3)SR3 and 4.3 before 4.3(1)SR1, and CallManager 4.0 and 4.1 before 4.1(3)SR5c, allows remote attackers to cause a denial of service or execute arbitrary code via a long request.
  • OSVDB ID: 40357: Cisco Unified Communications Manager CTL Provider Service Long Request Remote Overflow
  • SA28530: Cisco Unified Communications Manager CTL Provider Service Buffer Overflow
  • SECTRACK ID: 1019223: Cisco Unified Communications Manager Buffer Overflow in Certificate Trust List Provider Service Lets Remote Users Execute Arbitrary Code

Platforms Affected:

  • Cisco Unified CallManager 4.0
  • Cisco Unified CallManager 4.1
  • Cisco Unified CallManager 4.1(3)SR4
  • Cisco Unified CallManager 4.1(3)SR5
  • Cisco Unified CallManager 4.1(3)SR5b
  • Cisco Unified Communications Manager 4.2
  • Cisco Unified Communications Manager 4.2.3SR2
  • Cisco Unified Communications Manager 4.2.3SR2b
  • Cisco Unified Communications Manager 4.3

Reported:

Jan 16, 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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