SB2020083004 - Permissions, Privileges, and Access Controls in firefox-esr (Alpine package)
Published: August 30, 2020
Security Bulletin ID
SB2020083004
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-15663)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due Mozilla Maintenance Service does not check if the updater.exe file has a valid signature before executing it with elevated privileges. A local user with ability to replace the updater.exe file file can execute arbitrary code with SYSTEM privileges.
Remediation
Install update from vendor's website.