Skip to content
Permalink
master
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
 
 
Cannot retrieve contributors at this time

MNDT-2022-0001

Check Point Enterprise Endpoint Security Client for Windows contains a local privilege escalation vulnerability prior to version E86.20

Impact

High - Exploiting the vulnerability will give a local unprivileged attacker SYSTEM level privileges.

Exploitability

Medium - Any authenticated local user can exploit the vulnerability and an exploit is trivial to produce.

CVE Reference

CVE-2021-30360

Technical Details

The installation of the agent uses the Windows Installer framework and an MSI file is cached in c:\windows\installer. An unprivileged user can trigger a repair operation, either by using the Windows Installer API or by running "msiexec.exe /fa c:\windows\installer\[XXXXX].msi".

Running a repair operation will trigger a number of file operations in the %TEMP% folder of the user triggering the repair. Some of these operations will be performed from a SYSTEM context (started via the Windows Installer service), including the execution of temporary files.

Resolution

The issue was fixed in version E86.20; update to this version to address the vulnerability.

Discovery Credits

  • Ronnie Salomonsen, Mandiant

Disclosure Timeline

  • 19-Oct-2021 - Issue reported to Check Point
  • 22-Oct-2021 - Issue confirmed by Check Point and a fix scheduled for January 5, 2022.
  • 05-Jan-2022 - Patched version released by Check Point

References