Vulnerability identifier: #VU62354

Vulnerability risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-20731

CWE-ID: CWE-489

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Catalyst Digital Building Series Switches
Other software / Other software solutions
Cisco Boot Loader
Other software / Other software solutions
Cisco IOS
Operating systems & Components / Operating system

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local attacker to execute arbitrary code on the system.

The vulnerability exists due to the Secure Boot is not properly enabled. An attacker with physical access can load unsigned code and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Catalyst Digital Building Series Switches: All versions

Cisco IOS: 15.2.5 EX - 15.2.7 E

Cisco Boot Loader: 15.2(7r)E2

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cdb-cmicr-vulns-KJjFtNb

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.