#VU66752 OS Command Injection in Firepower 4100 Series Security Appliances and Cisco Firepower 9300 Security Appliance - CVE-2022-20865

Vulnerability identifier: #VU66752

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20865

CWE-ID: CWE-78

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Firepower 4100 Series Security Appliances
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Firepower 9300 Security Appliance
Hardware solutions / Security hardware applicances

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation in the CLI. A local user can pass specially crafted arguments to a CLI command and execute arbitrary OS commands with root privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Firepower 4100 Series Security Appliances: All versions

Cisco Firepower 9300 Security Appliance: All versions

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-cmdinj-TxcLNZNH
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwc38361

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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