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CVE-2018-0163

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
28/03/2018
Last modified:
28/04/2021

Description

A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass the authentication phase on an 802.1x multi-auth port. The vulnerability is due to a logic change error introduced into the code. An attacker could exploit this vulnerability by trying to access an 802.1x multi-auth port after a successful supplicant has authenticated. An exploit could allow the attacker to bypass the 802.1x access controls and obtain access to the network. Cisco Bug IDs: CSCvg69701.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x
6.50
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 3.30 LOW
Vector: AV:A/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
3.30
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:15.4\(3\)m6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3\)m6a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3\)m7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3\)m7a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3\)m8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.4\(3.0i\)m6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m4a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m4b:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m4c:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m5a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)m6a:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools