Stack-based buffer overflow in Cisco Systems, Inc products - CVE-2023-20161
Published: May 17, 2023
Vulnerability identifier: #VU76268
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-20161
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when handling requests. A remote unauthenticated attacker can send specially crafted input to the web interface, trigger a stack-based buffer overflow and execute arbitrary code with root privileges on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Cisco Small Business 200 Series Smart Switches
Cisco Small Business 300 Series Managed Switches
Cisco Small Business 500 Series Stackable Managed Switches
Cisco 250 Series Smart Switches
Cisco 350 Series Managed Switches
Cisco 350X Series Stackable Managed Switches
Cisco 550X Series Stackable Managed Switches
Cisco Small Business 300 Series Managed Switches
Cisco Small Business 500 Series Stackable Managed Switches
Cisco 250 Series Smart Switches
Cisco 350 Series Managed Switches
Cisco 350X Series Stackable Managed Switches
Cisco 550X Series Stackable Managed Switches
How to mitigate CVE-2023-20161
Install updates from vendor's website.
Cisco 250 Series Smart Switches - update to 2.5.9.16
Cisco 350 Series Managed Switches - update to 2.5.9.16
Cisco 350X Series Stackable Managed Switches - update to 2.5.9.16
Cisco 550X Series Stackable Managed Switches - update to 2.5.9.16
Cisco 350 Series Managed Switches - update to 2.5.9.16
Cisco 350X Series Stackable Managed Switches - update to 2.5.9.16
Cisco 550X Series Stackable Managed Switches - update to 2.5.9.16