CVE-2023-20012
Cisco Nexus 9300-FX3 Series Fabric Extender for UCS Fabric Interconnects Authentication Bypass Vulnerability
MEDIUM 5.3
At a glance
- Source
- NVD
- EPSS
- EPSS 0.29 % · percentile 22 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-287 — Improper Authentication
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | MEDIUM 4.6 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2023-24191
- GCVE · GCVE-0-2023-20012
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:nexus_93180yc-fx3s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:nexus_93180yc-fx3_firmware:-:*:*:*:*:*:*:*cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*≥ 4.2 < 4.2\(2d\)cpe:2.3:o:cisco:ucs_6536_firmware:-:*:*:*:*:*:*:*cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*≥ 4.2 < 4.2\(2d\)cpe:2.3:o:cisco:ucs_64108_firmware:-:*:*:*:*:*:*:*cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*≥ 4.2 < 4.2\(2d\)cpe:2.3:o:cisco:ucs_6454_firmware:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Unified Computing System (Managed) | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |