CVE-2021-1488
MediumCVSS 6.7Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
A vulnerability in the upgrade process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject commands that could be executed with root privileges on the underlying OS. This is due to insufficient input validation. Exploitation involves uploading a crafted upgrade package file.
Risk Assessment
Risk of gaining full control over the device's operating system by an attacker with local access, potentially compromising the entire network.
Recommendation
Update ASA/FTD software to a patched version. Verify integrity of upgrade packages before applying.
Original NVD description (English source)
A vulnerability in the upgrade process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject commands that could be executed with root privileges on the underlying operating system (OS). This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by uploading a crafted upgrade package file to an affected device. A successful exploit could allow the attacker to inject commands that could be executed with root privileges on the underlying OS.