title: Cisco IOS and IOS XE Software Network Plug-and-Play Agent Certificate Validation Vulnerability
description: A vulnerability in the Cisco Network Plug-and-Play (PnP) agent of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data. The vulnerability exists because the affected software insufficiently validates certificates. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt and modify confidential information on user connections to the affected software.
problem types: CWE-295
affected:
{
product: Cisco IOS and IOS XE Software
vendor: Cisco
versions:
status: affected, version: 3.7.7S
status: affected, version: 3.9.1S
status: affected, version: 3.9.0S
status: affected, version: 3.9.2S
status: affected, version: 3.9.1aS
status: affected, version: 3.9.0aS
status: affected, version: 3.3.0SE
status: affected, version: 3.3.1SE
status: affected, version: 3.3.2SE
status: affected, version: 3.3.3SE
status: affected, version: 3.3.4SE
status: affected, version: 3.3.5SE
status: affected, version: 3.3.0XO
status: affected, version: 3.3.1XO
status: affected, version: 3.3.2XO
status: affected, version: 3.5.0E
status: affected, version: 3.5.1E
status: affected, version: 3.5.2E
status: affected, version: 3.5.3E
status: affected, version: 3.10.0S
status: affected, version: 3.10.1S
status: affected, version: 3.10.2S
status: affected, version: 3.10.3S
status: affected, version: 3.10.4S
status: affected, version: 3.10.5S
status: affected, version: 3.10.6S
status: affected, version: 3.10.2aS
status: affected, version: 3.10.2tS
status: affected, version: 3.10.7S
status: affected, version: 3.10.8S
status: affected, version: 3.10.8aS
status: affected, version: 3.10.9S
status: affected, version: 3.10.10S
status: affected, version: 3.11.1S
status: affected, version: 3.11.2S
status: affected, version: 3.11.0S
status: affected, version: 3.11.3S
status: affected, version: 3.11.4S
status: affected, version: 3.12.0S
status: affected, version: 3.12.1S
status: affected, version: 3.12.2S
status: affected, version: 3.12.3S
status: affected, version: 3.12.0aS
status: affected, version: 3.12.4S
status: affected, version: 3.13.0S
status: affected, version: 3.13.1S
status: affected, version: 3.13.2S
status: affected, version: 3.13.3S
status: affected, version: 3.13.4S
status: affected, version: 3.13.5S
status: affected, version: 3.13.2aS
status: affected, version: 3.13.0aS
status: affected, version: 3.13.5aS
status: affected, version: 3.13.6S
status: affected, version: 3.13.7S
status: affected, version: 3.13.6aS
status: affected, version: 3.13.6bS
status: affected, version: 3.13.7aS
status: affected, version: 3.13.8S
status: affected, version: 3.13.9S
status: affected, version: 3.6.0E
status: affected, version: 3.6.1E
status: affected, version: 3.6.0aE
status: affected, version: 3.6.0bE
status: affected, version: 3.6.2aE
status: affected, version: 3.6.2E
status: affected, version: 3.6.3E
status: affected, version: 3.6.4E
status: affected, version: 3.6.5E
status: affected, version: 3.6.6E
status: affected, version: 3.6.5aE
status: affected, version: 3.6.5bE
status: affected, version: 3.6.7E
status: affected, version: 3.6.7aE
status: affected, version: 3.6.7bE
status: affected, version: 3.6.9E
status: affected, version: 3.6.10E
status: affected, version: 3.6.9aE
status: affected, version: 3.14.0S
status: affected, version: 3.14.1S
status: affected, version: 3.14.2S
status: affected, version: 3.14.3S
status: affected, version: 3.14.4S
status: affected, version: 3.15.0S
status: affected, version: 3.15.1S
status: affected, version: 3.15.2S
status: affected, version: 3.15.1cS
status: affected, version: 3.15.3S
status: affected, version: 3.15.4S
status: affected, version: 3.7.0E
status: affected, version: 3.7.1E
status: affected, version: 3.7.2E
status: affected, version: 3.7.3E
status: affected, version: 3.7.4E
status: affected, version: 3.7.5E
status: affected, version: 3.16.0S
status: affected, version: 3.16.1S
status: affected, version: 3.16.0aS
status: affected, version: 3.16.1aS
status: affected, version: 3.16.2S
status: affected, version: 3.16.2aS
status: affected, version: 3.16.0bS
status: affected, version: 3.16.0cS
status: affected, version: 3.16.3S
status: affected, version: 3.16.2bS
status: affected, version: 3.16.3aS
status: affected, version: 3.16.4S
status: affected, version: 3.16.4aS
status: affected, version: 3.16.4bS
status: affected, version: 3.16.4gS
status: affected, version: 3.16.5S
status: affected, version: 3.16.4cS
status: affected, version: 3.16.4dS
status: affected, version: 3.16.4eS
status: affected, version: 3.16.6S
status: affected, version: 3.16.5aS
status: affected, version: 3.16.5bS
status: affected, version: 3.16.7S
status: affected, version: 3.16.6bS
status: affected, version: 3.16.7aS
status: affected, version: 3.17.0S
status: affected, version: 3.17.1S
status: affected, version: 3.17.2S
status: affected, version: 3.17.1aS
status: affected, version: 3.17.3S
status: affected, version: 3.17.4S
status: affected, version: 16.1.1
status: affected, version: 16.1.2
status: affected, version: 16.1.3
status: affected, version: 16.2.1
status: affected, version: 16.2.2
status: affected, version: 3.8.0E
status: affected, version: 3.8.1E
status: affected, version: 3.8.2E
status: affected, version: 3.8.3E
status: affected, version: 3.8.4E
status: affected, version: 3.8.5E
status: affected, version: 3.8.5aE
status: affected, version: 3.8.6E
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: 16.4.1
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: 3.18.0aS
status: affected, version: 3.18.0S
status: affected, version: 3.18.1S
status: affected, version: 3.18.2S
status: affected, version: 3.18.3S
status: affected, version: 3.18.4S
status: affected, version: 3.18.0SP
status: affected, version: 3.18.1SP
status: affected, version: 3.18.1aSP
status: affected, version: 3.18.1gSP
status: affected, version: 3.18.1bSP
status: affected, version: 3.18.1cSP
status: affected, version: 3.18.2SP
status: affected, version: 3.18.1hSP
status: affected, version: 3.18.2aSP
status: affected, version: 3.18.1iSP
status: affected, version: 3.18.3SP
status: affected, version: 3.18.4SP
status: affected, version: 3.18.3aSP
status: affected, version: 3.18.3bSP
status: affected, version: 3.18.5SP
status: affected, version: 3.9.0E
status: affected, version: 3.9.1E
status: affected, version: 3.9.2E
status: affected, version: 3.9.2bE
status: affected, version: 16.6.1
status: affected, version: 16.6.2
status: affected, version: 3.10.0E
status: affected, version: 3.10.0cE
}
metrics:
cvssV3_0: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.4
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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.