Cisco Secure Services Client (CSSC) DACL privilege escalation

cisco-cssc-dacl-privilege-escalation (32625) The risk level is classified as HighHigh Risk

Description:

Cisco Secure Services Client (CSSC) could allow a local attacker to gain elevated privileges, caused by an unspecified error in the GUI ConnectionClient.exe files's Discretionary Access Control Lists (DACL). An attacker could exploit this vulnerability by sending a specially-crafted thread to execute arbitrary commands with SYSTEM or root privileges on the system.

*CVSS:

Base Score: 7
  Access Vector: Local
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Refer to cisco-sa-20070221-supplicant for patch, upgrade, or suggested workaround information. See References.

References:

  • cisco-sa-20070221-supplicant: Cisco Security Advisory: Multiple Vulnerabilities in 802.1X Supplicant.
  • BID-22648: Cisco 802.1X Authentication Deployment Products Multiple Vulnerabilities
  • CVE-2007-1066: Cisco Secure Services Client (CSSC) 4.x, Trust Agent 1.x and 2.x, Cisco Security Agent (CSA) 5.0 and 5.1 (when a vulnerable Trust Agent has been deployed), and the Meetinghouse AEGIS SecureConnect Client use an insecure default Discretionary Access Control Lists (DACL) for the connection client GUI, which allows local users to gain privileges by injecting a thread under ConnectionClient.exe
  • OSVDB ID: 33047: Cisco Secure Services Client (CSSC) Insecure Default DACL
  • SA24258: Cisco Secure Services Client Multiple Vulnerabilities
  • SECTRACK ID: 1017683: Cisco Secure Services Client Lets Local Users Gain System Privileges and Also View Passwords
  • SECTRACK ID: 1017684: Cisco Trust Agent Lets Local Users Gain System Privileges and Also View Passwords

Platforms Affected:

  • Cisco Secure Services Client 4.0
  • Cisco Secure Services Client 4.0.5
  • Cisco Secure Services Client 4.0.51
  • Cisco Security Agent 5.0
  • Cisco Security Agent 5.1
  • Cisco Trust Agent 1.0
  • Cisco Trust Agent 2.0
  • Cisco Trust Agent 2.0.1
  • Cisco Trust Agent 2.1
  • Meetinghouse AEGIS SecureConnect Client for Windows

Reported:

Feb 21, 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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