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CVE-2017-12213

N/A

Description

A vulnerability in the dynamic access control list (ACL) feature of Cisco IOS XE Software running on Cisco Catalyst 4000 Series Switches could allow an unauthenticated, adjacent attacker to cause dynamic ACL assignment to fail and the port to fail open. This could allow the attacker to pass traffic to the default VLAN of the affected port. The vulnerability is due to an uncaught error condition that may occur during the reassignment of the auth-default-ACL dynamic ACL to a switch port after 802.1x authentication fails. A successful exploit of this issue could allow a physically adjacent attacker to bypass 802.1x authentication and cause the affected port to fail open, allowing the attacker to pass traffic to the default VLAN of the affected switch port. Cisco Bug IDs: CSCvc72751.

CVE Details

CVSS v3.1 ScoreN/A
Published9/7/2017
Last Modified4/20/2025
Sourcenvd
Honeypot Sightings0

Affected Products

cisco:catalyst_4000cisco:ios_xe

Weaknesses (CWE)

CWE-287CWE-287

References

http://www.securityfocus.com/bid/100663(psirt@cisco.com)
http://www.securitytracker.com/id/1039284(psirt@cisco.com)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cat(psirt@cisco.com)
http://www.securityfocus.com/bid/100663(af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1039284(af854a3a-2127-422b-91ae-364da2661108)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cat(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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