Displaylink · Displaylink Core Software Cleaner Application · CVE-2018-7884
Name of the Vulnerable Software and Affected Versions:
DisplayLink Core Software Cleaner Application version 8.2.1956
Description:
An issue was discovered in the DisplayLink Core Software Cleaner Application. When the drivers are updated to a newer version, the product launches a process as SYSTEM to uninstall the old version. This process, cl 1956.exe, is run as SYSTEM on the %systemroot%Temp folder, where any user can write a DLL (e.g., `version.dll`) to perform DLL Hijacking and elevate privileges to SYSTEM.
Recommendations:
For DisplayLink Core Software Cleaner Application version 8.2.1956, as a temporary workaround, consider restricting write access to the %systemroot%Temp folder to minimize the risk of exploitation.