CVE-2021-22038: High severity vmware installbuilder vulnerability
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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-22038?
CVE-2021-22038 has a medium severity rating due to its potential impact on system security.
How do I fix CVE-2021-22038?
To fix CVE-2021-22038, update VMware InstallBuilder to version 21.6.0 or later.
What software is affected by CVE-2021-22038?
CVE-2021-22038 affects VMware InstallBuilder versions prior to 21.6.0 on Windows.
Can CVE-2021-22038 lead to unauthorized access?
Yes, CVE-2021-22038 can allow unauthorized access due to improper permission settings.
What is the main issue with CVE-2021-22038?
The main issue with CVE-2021-22038 is that the uninstaller binary is executed from a predictable location without proper access controls.