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Cisco Duo for macOS Authentication Bypass (cisco-sa-duo-macOS-bypass-uKZNpXE6)

medium Nessus Plugin ID 166791

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Synopsis

The remote host has an application installed that is affected by an authentication bypass vulnerability.

Description

A vulnerability in the smart card login authentication of Cisco Duo for macOS could allow an unauthenticated attacker with physical access to bypass authentication. This vulnerability exists because the assigned user of a smart card is not properly matched with the authenticating user. An attacker could exploit this vulnerability by configuring a smart card login to bypass Duo authentication. A successful exploit could allow the attacker to use any personal identity verification (PIV) smart card for authentication, even if the smart card is not assigned to the authenticating user.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Cisco Duo version 2.0.0 or later.

See Also

http://www.nessus.org/u?a57516c2

Plugin Details

Severity: Medium

ID: 166791

File Name: cisco-sa-duo-macOS-bypass-uKZNpXE6.nasl

Version: 1.3

Type: local

Agent: macosx

Published: 11/2/2022

Updated: 11/28/2022

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-20662

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:duo

Required KB Items: Host/local_checks_enabled, Host/MacOSX/Version, installed_sw/Cisco Duo

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2022

Vulnerability Publication Date: 9/28/2022

Reference Information

CVE: CVE-2022-20662