External Control of File Name or Path in Cisco Firewall Threat Defense (FTD) - CVE-2021-34761
Published: October 29, 2021
Vulnerability identifier: #VU57783
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-34761
CWE-ID: CWE-73
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to overwrite arbitrary files.
The vulnerability exists due to incomplete validation of user input for a specific CLI command. A local administrator can overwrite or append arbitrary data to system files.
Affected software
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2021-34761
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1