SB2023022310 - Improper Authentication in Cisco Nexus 9300-FX3 Series Fabric Extender
Published: February 23, 2023
Security Bulletin ID
SB2023022310
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2023-20012)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to bypass authentication process.
The vulnerability exists due to the improper implementation of the password validation function. An attacker with physical access can bypass authentication and execute a limited set of commands local to the FEX, leading to a device reboot and denial of service (DoS) condition.
Remediation
Install update from vendor's website.