Token impersonation via unverified named pipe connection
Published Jul 6, 2022 · Updated Jul 9, 2026
Local privilege escalation in iTop VPN 3.2 allows local users to obtain another user's access token through a crafted named pipe. iTopVPNmini.exe repeatedly connects to datastate_iTopVPN_Pipe_Server without verifying the pipe server, letting its operator invoke ImpersonateNamedPipeClient on the connection. Exploitation requires SeImpersonatePrivilege and a process listening on the named pipe; the resulting token permits impersonation of the connecting user.
Summary
What happened
Local privilege escalation in iTop VPN 3.2 allows local users to obtain another user's access token through a crafted named pipe. iTopVPNmini.exe repeatedly connects to datastate_iTopVPN_Pipe_Server without verifying the pipe server, letting its operator invoke ImpersonateNamedPipeClient on the connection. Exploitation requires SeImpersonatePrivilege and a process listening on the named pipe; the resulting token permits impersonation of the connecting user.
The record
- CVE
- CVE-2022-24141
- Published
- Jul 6, 2022
- Updated
- Jul 9, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- T1134.001
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 6, 2022CVE publishedPublication date reported by the CVE source.
- Jul 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
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Attacks
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Technologies
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