var-200708-0373
Vulnerability from variot
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. Cisco VPN Client for Windows is prone to multiple local privilege-escalation vulnerabilities. Successfully exploiting these issues allows attackers with local, interactive access to affected computers to gain SYSTEM-level privileges. This facilitates the complete compromise of affected computers. Versions prior to 4.8.02.0010 and 5.0.01.0600 of Cisco VPN Client for the Microsoft Windows platform are vulnerable to these issues. These issues are tracked as Cisco Bug IDs CSCse89550 and CSCsj00785. 1. Local privileges over Microsoft Windows Dial-Up Networking interfaces Elevating a non-privileged user can be done by enabling the Start Before Logon (SBL) feature and configuring the VPN configuration to use the Microsoft Dial-Up Networking interface to elevate privileges to that of a LocalSystem account user. Note that configuring these two settings does not require the user to have administrative privileges. 2. Unprivileged users can obtain privilege escalation through the use of any executable program Replacing the Cisco VPN Service executable causes arbitrary programs to run with the privileges of the LocalSystem account
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.