SB2020102722 - Protection Mechanism Failure in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software
Published: October 27, 2020
Security Bulletin ID
SB2020102722
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Protection Mechanism Failure (CVE-ID: CVE-2020-3458)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to insufficient protections of the secure boot process. A local administrator can inject code into specific files that are then referenced during the device boot process, break the chain of trust and inject code into the boot process of the device, which would be executed at each boot and maintain persistence across reboots.
Remediation
Install update from vendor's website.