ReviewHigh

CVE-2022-20729

Cisco Cisco Firepower Threat Defense Software, secure firewall threat defense

A vulnerability in CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject XML into the command parser. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including crafted input in commands. A successful exploit could allow the attacker to inject XML into the command parser, which could result in unexpected processing of the command and unexpected command output.

CVSS: 7.8
EPSS: 0.26%
CISA KEV: Not listed
Published: 2022.05.03

PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.26%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Cisco Cisco Firepower Threat Defense Software, secure firewall threat defense
Affected versions: < 6.4.0.15, >= 6.5.0 < 6.6.5.2, >= 6.7.0 < 7.0.2
Fixed versions: 6.4.0.15, 6.6.5.2, 7.0.2

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 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-91