Cisco VPN Client for Windows cvpnd.exe privilege escalation
| cisco-vpn-cvpnd-privilege-escalation (36032) |  Medium Risk |
Description:
The Cisco VPN Client for Windows could allow a local attacker to gain elevated privileges, caused by insecure permissions on the cvpnd.exe file. An attacker could exploit this vulnerability to gain LocalSystem privileges.
*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-20070815-vpnclient for patch, upgrade, or suggested workaround information. See References.
References:
- BugTraq Mailing List, Thu Aug 16 2007 - 04:48:52 CDT : Local privilege escalation vulnerability in Cisco VPN client.
- Cisco VPN Client Web site: Cisco VPN Client - Products & Services - Cisco Systems.
- cisco-sa-20070815-vpnclient: Local Privilege Escalation Vulnerabilities in Cisco VPN Client.
- BID-25332: Cisco VPN Client for Windows Multiple Local Privilege Escalation Vulnerabilities
- CVE-2007-4415: Cisco VPN Client on Windows before 5.0.01.0600, and the 5.0.01.0600 InstallShield (IS) release, uses weak permissions for cvpnd.exe (Modify granted to Interactive Users), which allows local users to gain privileges via a modified cvpnd.exe.
- SA26459: Cisco VPN Client Privilege Escalation Vulnerabilities
- SECTRACK ID: 1018573: Cisco VPN Client Dialup Networking and cvpnd.exe Bugs Let Local Users Gain Elevated Privileges
- VUPEN/ADV-2007-2903: Cisco VPN Client Insecure Permissions Local Privilege Escalation Vulnerabilities
Platforms Affected:
- Cisco VPN Client 5.0.1
- Cisco VPN Client 5.0.1.0600
Reported:
Aug 15, 2007
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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net
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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.