Vulnerability · Published Oct 29, 2021 · Assigned by vmware
CVE-2021-22038
High 8.8
In plain English
A high-severity security flaw in VMware InstallBuilder. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | VMware InstallBuilder | All InstallBuilder versions prior to version 21.6.0 |