CVE-2017-12213

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Summary

CVECVE-2017-12213
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-09-07 21:29:00 UTC
Updated2019-10-09 23:22:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-287

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Catalyst 4000 - All All All
Hardware Cisco Catalyst 4000 - All All All
Operating System Cisco Ios Xe - All All All
Operating System Cisco Ios Xe - All All All

References

ReferenceSourceLinkTags
Cisco Catalyst 4000 Series Switch Dynamic ACL Bug Lets Remote Users Bypass Port Access Controls on the Target System - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
Cisco Catalyst 4000 Series Switches CVE-2017-12213 Authentication Bypass Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
Cisco Catalyst 4000 Series Switches Dynamic ACL Bypass Vulnerability CONFIRM tools.cisco.com Mitigation, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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