CVE-2021-1492: Duo Authentication Proxy Installer Denial of…

Record summary

CVE-2021-1492 has a selected CVSS score of 6.6 (medium).

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone

AutomatableNo

Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Nov 8, 2024 · Source: CVE List

Affected products and versions

Product	Source	Version range	Status
Duo Authentication Proxy Browse Cisco / Duo Authentication Proxy	CVE List	Before 5.2.1	affected

References

help.duo.comVendor advisory

https://help.duo.com/s/article/6789

nvd.nist.gov

https://nvd.nist.gov/vuln/detail/CVE-2021-1492