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VULNERABILITIES

CVE-2017-12213 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cat CVEMitigationVendor Advisory
http://www.securityfocus.com/bid/100663 CVEThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039284 CVEThird Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cat [email protected]MitigationVendor Advisory
http://www.securityfocus.com/bid/100663 [email protected]Third Party AdvisoryVDB Entry

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-287Improper Authentication[email protected]
CWE-287Improper Authentication[email protected]

Affected Products

ProductVersions
cisco ios xe
All versions

CPE

  • cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
cisco catalyst 4000
All versions

CPE

  • cpe:2.3:h:cisco:catalyst_4000:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

8 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2017-12213
NVD Published Date:
Sep 7, 2017
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2017-12213 Details - Not Deferred