#VU79968 Input validation error in Cisco Systems, Inc products - CVE-2023-20168
Published: August 25, 2023
Vulnerability identifier: #VU79968
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-20168
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco NX-OS
Cisco MDS 9000 Series Multilayer Switches
Nexus 1000V Switch for Microsoft Hyper-V
Nexus 1000V Switch for VMware vSphere
Cisco Nexus 3000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Nexus 6000 Series Switches
Nexus 7000 Series Switches
Cisco Nexus 9000 Series Switches NX-OS Mode
Nexus 1000 Virtual Edge for VMware vSphere
Cisco NX-OS
Cisco MDS 9000 Series Multilayer Switches
Nexus 1000V Switch for Microsoft Hyper-V
Nexus 1000V Switch for VMware vSphere
Cisco Nexus 3000 Series Switches
Nexus 5500 Platform Switches
Nexus 5600 Platform Switches
Nexus 6000 Series Switches
Nexus 7000 Series Switches
Cisco Nexus 9000 Series Switches NX-OS Mode
Nexus 1000 Virtual Edge for VMware vSphere
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in TACACS+ and RADIUS. A local attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.