Horizon Alert
Summary of the vulnerability and why it matters
This security issue in pgAdmin 4 allows an attacker with write access to session files to run their own code on the server. This is because pgAdmin 4 was not properly verifying session data before processing it, potentially leading to unauthorized control of the system.
- Run code on the server.
- Requires write access to session files.
Attack Path
How an attacker could exploit the issue
An attacker with authenticated access and write permissions to the pgAdmin sessions directory could exploit this by planting a serialized payload. This payload would be deserialized and executed as operating system commands under the pgAdmin process.
- Authenticated user needed.
- Write access to session directory.
- Unsafe deserialization of session files.
Live Threat
Current exploitation, exposure, and threat context
Attackers are unlikely to weaponize this vulnerability due to the limited attack surface. The exploit requires authenticated local access to the sessions directory, which is typically not publicly exposed.
- Primarily local execution.
- No public exploit available.
- Exploitation is recent.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Teams should prioritize investigating unauthorized file write access to pgAdmin 4 sessions directories and immediately patching or isolating affected instances. This vulnerability allows for remote code execution by an authenticated user with write access, making prompt action critical. Focus on identifying any systems running a vulnerable version of pgAdmin 4 and the scope of potential compromise.
- Patch pgAdmin 4 to version 9.15.
- Restrict write access to session directories.
- Monitor for unusual file activity in sessions directories.
