Cisco ASA and PIX VPN password expiry denial of service

cisco-asa-vpn-dos (34021) The risk level is classified as MediumMedium Risk

Description:

Cisco Adaptive Security Appliance (ASA) and PIX security appliances are vulnerable to a denial of service. If the device is configured with password expiry, a remote attacker with access to the group name and group password could cause the device to reload and drop all existing connections, resulting in a denial of service.

*CVSS:

Base Score: 4
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 3
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to cisco-sa-20070502-asa for upgrade information. See References.

References:

  • cisco-sa-20070502-asa: Cisco Security Advisory: LDAP and VPN Vulnerabilities in PIX and ASA Appliances.
  • BID-23768: Cisco PIX And ASA Appliances Multiple Remote Vulnerabilities
  • CVE-2007-2463: Unspecified vulnerability in Cisco Adaptive Security Appliance (ASA) and PIX 7.1 before 7.1(2)49 and 7.2 before 7.2(2)17 allows remote attackers to cause a denial of service (device reload) via unknown vectors related to VPN connection termination and password expiry.
  • OSVDB ID: 35332: Cisco PIX / ASA Unspecified VPN Connection DoS
  • SA25109: Cisco PIX and ASA Denial of Service and Security Bypass

Platforms Affected:

  • Cisco Adaptive Security Appliance 7.1
  • Cisco Adaptive Security Appliance 7.2
  • Cisco PIX Firewall 7.1
  • Cisco PIX Firewall 7.2

Reported:

May 02, 2007

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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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