Cisco Duo Two-Factor Authentication on macOS improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Duo Two-Factor Authentication on macOS. It has been rated as critical. Affected is an unknown function. This manipulation causes improper authentication. The identification of this vulnerability is CVE-2023-20199. It is feasible to perform the attack on the physical device. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco Duo Two-Factor Authentication on macOS (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 06/22/2023 as cisco-sa-duo-mac-bypass-OyZpVPnx. It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is known as CVE-2023-20199 since 10/27/2022. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-24378). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.6
NVD Vector: 🔍

CNA Base Score: 6.2
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2022 🔍
06/22/2023 +238 days 🔍
06/22/2023 +0 days 🔍
08/25/2025 +795 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-duo-mac-bypass-OyZpVPnx
Status: Confirmed

CVE: CVE-2023-20199 (🔍)
GCVE (CVE): GCVE-0-2023-20199
GCVE (VulDB): GCVE-100-232099
EUVD: 🔍

Entryinfo

Created: 06/22/2023 06:25
Updated: 08/25/2025 19:24
Changes: 06/22/2023 06:25 (38), 07/16/2023 15:37 (1), 07/16/2023 15:43 (21), 08/25/2025 19:24 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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