title: Cisco IOS XE Software Gigabit Ethernet Management Interface Access Control List Bypass Vulnerability
description: A vulnerability in access control list (ACL) functionality of the Gigabit Ethernet Management interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to reach the configured IP addresses on the Gigabit Ethernet Management interface. The vulnerability is due to a logic error that was introduced in the Cisco IOS XE Software 16.1.1 Release, which prevents the ACL from working when applied against the management interface. An attacker could exploit this issue by attempting to access the device via the management interface.
problem types: CWE-284
affected:
{
product: Cisco IOS XE Software
vendor: Cisco
versions:
status: affected, version: 3.2.0JA
status: affected, version: 16.2.1
status: affected, version: 16.2.2
status: affected, version: 16.3.1
status: affected, version: 16.3.2
status: affected, version: 16.3.3
status: affected, version: 16.3.1a
status: affected, version: 16.3.4
status: affected, version: 16.3.5
status: affected, version: 16.3.5b
status: affected, version: 16.3.6
status: affected, version: 16.3.7
status: affected, version: 16.4.1
status: affected, version: 16.4.2
status: affected, version: 16.4.3
status: affected, version: 16.5.1
status: affected, version: 16.5.1a
status: affected, version: 16.5.1b
status: affected, version: 16.5.2
status: affected, version: 16.5.3
status: affected, version: 16.6.1
status: affected, version: 16.6.2
status: affected, version: 16.6.3
status: affected, version: 16.6.4
status: affected, version: 16.6.4s
status: affected, version: 16.6.4a
status: affected, version: 16.7.1
status: affected, version: 16.7.1a
status: affected, version: 16.7.1b
status: affected, version: 16.7.2
status: affected, version: 16.8.1
status: affected, version: 16.8.1a
status: affected, version: 16.8.1b
status: affected, version: 16.8.1s
status: affected, version: 16.8.1c
status: affected, version: 16.8.1d
status: affected, version: 16.8.2
status: affected, version: 16.8.1e
status: affected, version: 16.9.1
status: affected, version: 16.9.2
status: affected, version: 16.9.1a
status: affected, version: 16.9.1b
status: affected, version: 16.9.1s
status: affected, version: 16.9.1c
status: affected, version: 16.9.1d
}
metrics:
cvssV3_0: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: LOW
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
version: 3.0
]
exploits: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.