CVE-2021-1492

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.

Risk Information

Base Score

7.1

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Score

Exploitation Probability

0.051

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-1492 are fixed in Duo Security Authentication Proxy (5.2.1)	Windows
Vulnerabilities CVE-2021-1492 are fixed in Duo Security Authentication Proxy (5.2.0)	Windows
Vulnerabilities CVE-2021-1492 are fixed in Duo Security Authentication Proxy (5.1.1)	Windows
Vulnerabilities CVE-2020-1968,CVE-2021-1492 are fixed in Duo Security Authentication Proxy 5.1.0	Windows
Vulnerabilities CVE-2020-1968,CVE-2021-1492 are fixed in Duo Security Authentication Proxy 5.0.2	Windows

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-331885	Duo Security Authentication Proxy (6.0.2)
PATCH-338054	Duo Security Authentication Proxy (6.4.0)
PATCH-338227	Duo Security Authentication Proxy (6.4.1)
PATCH-342393	Duo Security Authentication Proxy (6.4.2)
PATCH-347413	Duo Security Authentication Proxy (6.5.0)

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234