Cisco Catalyst 2960-L/Catalyst CDB-8P 802.1x Broadcast access control

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Cisco Catalyst 2960-L and Catalyst CDB-8P. Affected by this issue is some unknown functionality of the component 802.1x Handler. Executing a manipulation as part of Broadcast can lead to access control. This vulnerability appears as CVE-2020-3231. The attacker needs to be present on the local network. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco Catalyst 2960-L and Catalyst CDB-8P (version unknown). It has been declared as critical. This vulnerability affects an unknown function of the component 802.1x Handler. The manipulation as part of a Broadcast leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication.

The weakness was presented 06/03/2020 as cisco-sa-c2960L-DpWA9Re4 as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2020-3231 since 12/12/2019. The attack needs to approached within the local network. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

12/12/2019 🔍
06/03/2020 +174 days 🔍
06/04/2020 +1 days 🔍
10/21/2020 +139 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-c2960L-DpWA9Re4
Status: Confirmed

CVE: CVE-2020-3231 (🔍)
GCVE (CVE): GCVE-0-2020-3231
GCVE (VulDB): GCVE-100-156058

Entryinfo

Created: 06/04/2020 14:41
Updated: 10/21/2020 17:24
Changes: 06/04/2020 14:41 (40), 06/04/2020 14:46 (11), 10/21/2020 17:24 (1)
Complete: 🔍
Cache ID: 216::103

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