Permissions, Privileges, and Access Controls in OpenVPN for Windows - CVE-2024-4877
Published: June 20, 2024
Vulnerability identifier: #VU92936
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-4877
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: OpenVPN
Affected software:
OpenVPN for Windows
OpenVPN for Windows
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions on the service pipe. A local user with SeImpersonatePrivilege permissions can open the pipe a second time, tricking openvn GUI into providing user credentials (tokens), and gain full access to the account used by openvpn-gui.exe.
How to mitigate CVE-2024-4877
Install updates from vendor's website.