SB2020101503 - Privilege escalation in Sympa
Published: October 15, 2020
Security Bulletin ID
SB2020101503
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) OS Command Injection (CVE-ID: CVE-2020-26880)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions for the sympa.conf configuration file. A local user with access to modify the file (e.g. the sympa user account) can injection and execute arbitrary OS commands in the system with root privileges via the setuid sympa_newaliases-wrapper executable by parsing the modified sympa.conf file.Remediation
Install update from vendor's website.