CVE-2017-12213

N/A
Published: September 7, 2017 at 09:00 PM UTC
Updated: June 17, 2026 at 01:02 AM UTC
2 products affected across 1 vendorCatalyst 4000IOS Xe

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Severity
N/A
Exploit prediction
EPSS 0.8%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
cisco-catalyst-4000 (environment)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/100663
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1039284

CVSS

Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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