Nortel Multimedia Communication Server 5100 UFTP denial of service

nortel-mcs-5100-uftp-dos (45751) The risk level is classified as MediumMedium Risk

Description:

Nortel Multimedia Communication Server 5100 is vulnerable to a denial of service, caused by multiple implementation errors of the UNIStim File Transfer Protocol (UFTP). By sending specially-crafted UFTP messages with malicious "Connection Details" fields, a remote attacker could exploit this vulnerability to cause a denial of service.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of Nortel Multimedia Communication Server 5100 (3.5.9 or later), available from the NORTEL Web site. See References.

References:

  • NORTEL BULLETIN ID: 2008009103, Rev 1: Nortel Response to VoIPshield VSRNT-2008-011 - MCS 5100 IPCM UFTP Multiple DoS Vulnerabilities.
  • NORTEL Web site: Multimedia Communication Server 5100.
  • VoIP Security Advisory, 2008-10-08: Nortel Multimedia Communications Server 5100 IP Client Manager UNIStim File Transfer Protocol - Connection Details.
  • BID-31633: Nortel MCS 5100 UFTP Multiple Denial of Service Vulnerabilities
  • CVE-2008-5872: Multiple unspecified vulnerabilities in the UNIStim File Transfer Protocol (UFTP) processing in IP Client Manager (IPCM) in Nortel Multimedia Communication Server (MSC) 5100 3.0.13 allow remote attackers to cause a denial of service (device outage) via a UFTP message that has a negative block size or other crafted Connection Details values.
  • OSVDB ID: 49103: Nortel Multimedia Communication Server 5100 Client Manager UNIStim FTP Multiple Method Remote DoS
  • SA32203: Nortel Multimedia Communication Server 5100 Multiple Vulnerabilities

Platforms Affected:

  • Nortel Multimedia Communication Server 5100 3.0.13

Reported:

Oct 08, 2008

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