Vulnerability Description
The Duo Authentication Proxy installer prior to 5.2.1 did not properly validate file installation paths. This allows an attacker with local user privileges to coerce the installer to write to arbitrary privileged directories. If successful, an attacker can manipulate files used by Duo Authentication Proxy installer, cause Denial of Service (DoS) by deleting file(s), or replace system files to potentially achieve elevation of privileges. This is only exploitable during new installations, while the installer is running, and is not exploitable once installation has finished. Versions 5.2.1 of Duo Authentication Proxy installer addresses this issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Duo | Authentication Proxy | < 5.2.1 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://help.duo.com/s/article/6789Vendor Advisory
- https://help.duo.com/s/article/6789Vendor Advisory
FAQ
What is CVE-2021-1492?
CVE-2021-1492 is a vulnerability with a CVSS score of 6.6 (MEDIUM). The Duo Authentication Proxy installer prior to 5.2.1 did not properly validate file installation paths. This allows an attacker with local user privileges to coerce the installer to write to arbitrar...
How severe is CVE-2021-1492?
CVE-2021-1492 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-1492?
Check the references section above for vendor advisories and patch information. Affected products include: Duo Authentication Proxy, Microsoft Windows.