ReviewHigh

CVE-2021-1448

Cisco Cisco Firepower Threat Defense Software, secure firewall threat defense, firepower 4110

A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges on the underlying operating system of an affected device that is running in multi-instance mode. This vulnerability is due to insufficient validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input to the affected command. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.

CVSS: 7.8
EPSS: 0.30%
CISA KEV: Not listed
Published: 2021.04.30

PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.30%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Cisco Cisco Firepower Threat Defense Software, secure firewall threat defense, firepower 4110
Affected versions: >= 6.4.0 < 6.4.0.10, >= 6.5.0 < 6.5.0.5, >= 6.6.0 < 6.6.1
Fixed versions: 6.4.0.10, 6.5.0.5, 6.6.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Cisco Cisco Firepower Threat Defense Software, secure firewall threat defense, firepower 4110 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-20, CWE-78