CVE-2021-22038

High

Description

On Windows, the uninstaller binary copies itself to a fixed temporary location, which is then executed (the originally called uninstaller exits, so it does not block the installation directory). This temporary location is not randomized and does not restrict access to Administrators only so a potential attacker could plant a binary to replace the copied binary right before it gets called, thus gaining Administrator privileges (if the original uninstaller was executed as Administrator). The vulnerability only affects Windows installers.

SeverityHigh
CVSS8.8
Exploit probability—
ProductVmware Installbuilder
PublishedOct 29, 2021
First seenOct 29, 2021

How to fix

Update
  • vmware installbuilder21.6.0 or later

Affected products

ProductAffected versionsFixed in
vmware installbuilderv < 21.6.021.6.0

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