Cisco ASA and PIX LDAP authentication bypass

cisco-asa-ldap-authentication-bypass (34020) The risk level is classified as HighHigh Risk

Description:

Cisco Adaptive Security Appliance (ASA) and PIX security appliances could allow a remote attacker to bypass authentication. If an affected device is configured to use a Lightweight Directory Access Protocol (LDAP) server for authentication, an attacker could exploit this vulnerability to gain unauthorized access to a vulnerable device or to the internal network.

*CVSS:

Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Bypass Security

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-2007-2462: Unspecified vulnerability in Cisco Adaptive Security Appliance (ASA) and PIX 7.2 before 7.2(2)8, when using Layer 2 Tunneling Protocol (L2TP) or Remote Management Access, allows remote attackers to bypass LDAP authentication and gain privileges via unknown vectors.
  • OSVDB ID: 35331: Cisco PIX / ASA Unspecified LDAP Authentication Bypass
  • SA25109: Cisco PIX and ASA Denial of Service and Security Bypass
  • SECTRACK ID: 1017994: Cisco PIX Bugs Let Remote Users Bypass LDAP Authentication and Deny Service
  • SECTRACK ID: 1017995: Cisco ASA Bugs Let Remote Users Bypass LDAP Authentication and Deny Service
  • US-CERT VU#210876: Cisco PIX and ASA authentication bypass vulnerability
  • VUPEN/ADV-2007-1636: Cisco PIX and ASA Multiple Authentication Bypass and Denial of Service Vulnerabilities

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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