Horizon Alert
Summary of the vulnerability and why it matters
This advisory concerns a vulnerability in the PostgreSQL database's adminpack extension. The issue relates to how a specific function handles log rotation, potentially allowing unauthorized users to force log file changes if they can connect to the database. The primary concern is confirming whether this extension is in use and if any databases are exposed in a manner that could be exploited.
- Function misuses log rotation permissions.
- Confirms if vulnerable extension is in use.
- Assess exposure and relevance of this function.
Attack Path
How an attacker could exploit the issue
An attacker who can connect to a PostgreSQL database with the `adminpack` extension enabled could force log rotation. This is possible because the `pg_logfile_rotate()` function in `adminpack` does not enforce the same access controls as a similar function, `pg_rorate_logfile`.
- Entry condition: Network access to the database.
- Trigger point: Executing a specific function.
- Resulting risk: Potential for log manipulation.
Live Threat
Current exploitation, exposure, and threat context
When the `adminpack` extension is installed, an attacker who can connect to the database could potentially trigger log rotation. This could disrupt logging operations and potentially impact the availability of log data for auditing or troubleshooting purposes.
- Database log files.
- Unauthenticated database connection.
- Disruption of logging.
Operational Fix
Recommended remediation, mitigation, and detection steps
The PostgreSQL adminpack extension requires immediate attention due to a vulnerability in the `pg_logfile_rotate()` function that could allow an attacker to force log rotation. The first practical step is to identify all PostgreSQL instances where the adminpack extension is enabled, determine their reachability and business criticality, and then locate the accountable owners for remediation planning.
- Application owners should manage the issue.
- Verify adminpack extension usage and reachability.
- Plan remediation based on identified risk.
