Vulnerabilities > CVE-2020-3427 - Unspecified vulnerability in Cisco DUO Authentication for Windows Logon and RDP

CVSS 4.6 - MEDIUM

Attack vector

LOCAL

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

PARTIAL

Integrity impact

PARTIAL

Availability impact

PARTIAL

local

low complexity

cisco

NVD

Published: 2020-10-14

Updated: 2022-09-20

Summary

The Windows Logon installer prior to 4.1.2 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 Windows Logon, cause Denial of Service (DoS) by deleting file(s), or replace system files to potentially achieve elevation of privileges. Note that this can only exploitable during new installations while the installer is running and is not exploitable once installation is finished. Versions 4.1.2 of Windows Logon addresses this issue.

Vulnerable Configurations

Part	Description	Count
Application	Cisco Cisco DUO Authentication FOR Windows Logon AND RDP 1.0.6 Cisco DUO Authentication FOR Windows Logon AND RDP 1.0.7 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.0 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.1 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.2 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.3 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.4 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.5 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.6 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.7 Cisco DUO Authentication FOR Windows Logon AND RDP 1.1.8 Cisco DUO Authentication FOR Windows Logon AND RDP 1.2.0.14 Cisco DUO Authentication FOR Windows Logon AND RDP 2.0.0.71 Cisco DUO Authentication FOR Windows Logon AND RDP 2.1.0 Cisco DUO Authentication FOR Windows Logon AND RDP 3.0.0.85 Cisco DUO Authentication FOR Windows Logon AND RDP 3.1.0 Cisco DUO Authentication FOR Windows Logon AND RDP 3.1.1 Cisco DUO Authentication FOR Windows Logon AND RDP 3.1.2 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.0 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.1 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.2 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.3 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.5 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.6 Cisco DUO Authentication FOR Windows Logon AND RDP 4.0.7 Cisco DUO Authentication FOR Windows Logon AND RDP 4.1.0 Cisco DUO Authentication FOR Windows Logon AND RDP 4.1.1	27

References

https://duo.com/docs/rdp-notes