CVE-2022-20934
MediumCVSS 6.0Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software and Cisco FXOS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as root. This is due to improper input validation for specific CLI commands. An attacker could inject operating system commands into a legitimate command, escaping the restricted prompt and executing arbitrary commands.
Risk Assessment
An attacker with administrator credentials could gain full control over the device, potentially compromising the security of the entire network. This could enable malware installation or configuration changes.
Recommendation
Apply Cisco updates for FTD and FXOS. Restrict CLI access and monitor commands executed by administrators.
Original NVD description (English source)
A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software and Cisco FXOS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system as root. This vulnerability is due to improper input validation for specific CLI commands. An attacker could exploit this vulnerability by injecting operating system commands into a legitimate command. A successful exploit could allow the attacker to escape the restricted command prompt and execute arbitrary commands on the underlying operating system. To successfully exploit this vulnerability, an attacker would need valid Administrator credentials.