Vulnerability Details : CVE-2023-20012
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.
Vulnerability category: BypassGain privilegeDenial of service
Products affected by CVE-2023-20012
- cpe:2.3:a:cisco:ucs_central_software:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_93180yc-fx3_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_93180yc-fx3s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ucs_6536_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ucs_64108_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ucs_6454_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-20012
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 1 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-20012
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
0.9
|
4.0
|
Cisco Systems, Inc. | |
|
4.6
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
0.9
|
3.6
|
NIST |
CWE ids for CVE-2023-20012
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2023-20012
-
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-elyfex-dos-gfvcByx
Cisco Nexus 9300-FX3 Series Fabric Extender for UCS Fabric Interconnects Authentication Bypass VulnerabilityVendor Advisory
Jump to