Active Debug Code in Cisco Systems, Inc products - CVE-2022-20661

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Main Vulnerability Database Vulnerabilities #VU62353

Active Debug Code in Cisco Systems, Inc products - CVE-2022-20661

Published: April 15, 2022


Vulnerability identifier: #VU62353
CSH Severity: Low
CVSSv4.0: 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
CVE-ID: CVE-2022-20661
CWE-ID: CWE-489
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS
Catalyst Digital Building Series Switches
Catalyst Micro Switches
Cisco Boot Loader
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a local attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected devices have an internal Cisco development boot loader that includes capabilities beyond those present in a normal boot loader. An attacker with physical access can break into the ROM monitor (ROMMON) during the boot cycle and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links