CVE-2019-10208 : Security Advisory and Response
Learn about CVE-2019-10208, a PostgreSQL vulnerability allowing execution of arbitrary SQL commands. Discover impact, affected versions, and mitigation steps.
A vulnerability has been identified in PostgreSQL versions 9.4.x to 9.4.24, 9.5.x to 9.5.19, 9.6.x to 9.6.15, 10.x to 10.10, and 11.x to 11.5. This flaw allows for the execution of arbitrary SQL statements under certain conditions.
Understanding CVE-2019-10208
This CVE pertains to a security vulnerability found in multiple versions of PostgreSQL that could lead to the execution of unauthorized SQL commands.
What is CVE-2019-10208?
The vulnerability in PostgreSQL versions allows attackers to execute arbitrary SQL statements by exploiting a SECURITY DEFINER function with EXECUTE permission.
The Impact of CVE-2019-10208
The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.5. The confidentiality, integrity, and availability of affected systems are at risk.
Technical Details of CVE-2019-10208
This section provides more technical insights into the vulnerability.
Vulnerability Description
The flaw enables the execution of arbitrary SQL commands by leveraging a suitable SECURITY DEFINER function with EXECUTE permission.
Affected Systems and Versions
- PostgreSQL 9.4.x to 9.4.24
- PostgreSQL 9.5.x to 9.5.19
- PostgreSQL 9.6.x to 9.6.15
- PostgreSQL 10.x to 10.10
- PostgreSQL 11.x to 11.5
Exploitation Mechanism
Attackers can exploit this vulnerability by having EXECUTE permission on the function, allowing them to execute SQL commands with the function owner's privileges.
Mitigation and Prevention
Protecting systems from CVE-2019-10208 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by PostgreSQL promptly.
- Restrict access to vulnerable functions to trusted users only.
- Monitor for any unauthorized SQL activities.
Long-Term Security Practices
- Regularly update and patch PostgreSQL installations.
- Implement the principle of least privilege to limit access rights.
- Conduct security audits to identify and address vulnerabilities proactively.
Patching and Updates
Ensure that all PostgreSQL instances are updated to versions that contain patches for CVE-2019-10208.