CVEvulnerability

CVE-2023-20012

4.6 MEDIUM Published 2023-02-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-02-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1 ([email protected])
4.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-287

Description

A vulnerability in the CLI console login authentication of Cisco Nexus 9300-FX3 Series Fabric Extender (FEX) when used in UCS Fabric Interconnect deployments could allow an unauthenticated attacker with physical access to bypass authentication. This vulnerability is due to the improper implementation of the password validation function. An attacker could exploit this vulnerability by logging in to the console port on an affected device. A successful exploit could allow the attacker to bypass authentication and execute a limited set of commands local to the FEX, which could cause a device reboot and denial of service (DoS) condition.

Affected configurations

• cisco nexus 93180yc-fx3s firmware • cisco nexus 93180yc-fx3 firmware • cisco ucs central software (>= 4.2 < 4.2\(2d\)) • cisco ucs 6536 firmware • cisco ucs 64108 firmware • cisco ucs 6454 firmware

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References