Vulnerability · Published Sep 30, 2022 · Assigned by cisco

CVE-2022-20662Cisco Duo for macOS Authentication Bypass Vulnerability

Medium 6.1

In plain English

A medium-severity improper authentication in Cisco Duo from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.4%top 68.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Duo	n/a

Weakness: CWE-287 · Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

20220928 Cisco Duo for macOS Authentication Bypass Vulnerability vendor-advisory, x_refsource_CISCO