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CVE-2022-20625

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
23/02/2022
Last modified:
07/11/2023

Description

A vulnerability in the Cisco Discovery Protocol service of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the service to restart, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of Cisco Discovery Protocol messages that are processed by the Cisco Discovery Protocol service. An attacker could exploit this vulnerability by sending a series of malicious Cisco Discovery Protocol messages to an affected device. A successful exploit could allow the attacker to cause the Cisco Discovery Protocol service to fail and restart. In rare conditions, repeated failures of the process could occur, which could cause the entire device to restart.

Impact

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

Base Score: 4.30 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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

Base Score 3.x
4.30
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:* 2.3.1.219 (excluding)
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:* 2.4 (including) 2.9.1.158 (excluding)
cpe:2.3:o:cisco:firepower_extensible_operating_system:*:*:*:*:*:*:*:* 2.10 (including) 2.10.1.179 (excluding)
cpe:2.3:h:cisco:mds_9132t:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:mds_9148s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:mds_9148t:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools