Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Installbuilder | < 21.6.0 |
Related Weaknesses (CWE)
References
- https://blog.installbuilder.com/2021/10/installbuilder-2160-released.htmlRelease NotesVendor Advisory
- https://blog.installbuilder.com/2021/10/installbuilder-2160-released.htmlRelease NotesVendor Advisory
FAQ
What is CVE-2021-22038?
CVE-2021-22038 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...
How severe is CVE-2021-22038?
CVE-2021-22038 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-22038?
Check the references section above for vendor advisories and patch information. Affected products include: Vmware Installbuilder.