CVE-2018-10936 Explained : Impact and Mitigation

A vulnerability was discovered in postgresql-jdbc before version 42.2.5 that could allow a man-in-the-middle attacker to pose as a trusted server by presenting a certificate for a different host.

Understanding CVE-2018-10936

This CVE relates to a weakness found in postgresql-jdbc before version 42.2.5, potentially enabling SSL Factory to be provided without hostname verification.

What is CVE-2018-10936?

Before version 42.2.5, a vulnerability in postgresql-jdbc allowed the SSL Factory to be provided without hostname verification, enabling a man-in-the-middle attack scenario.

The Impact of CVE-2018-10936

The vulnerability had a CVSS base score of 8.1 (High severity) with significant impacts on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2018-10936

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw in postgresql-jdbc before version 42.2.5 allowed a man-in-the-middle attacker to impersonate a trusted server using a certificate for a different host.

Affected Systems and Versions

Product: PostgreSQL
Vendor: [UNKNOWN]
Versions Affected: 42.2.5

Exploitation Mechanism

The vulnerability could be exploited by presenting a certificate for a different host, signed by a trusted CA, to impersonate a trusted server.

Mitigation and Prevention

To address CVE-2018-10936, follow these mitigation strategies:

Immediate Steps to Take

Upgrade to version 42.2.5 or later of postgresql-jdbc.
Implement hostname verification to prevent man-in-the-middle attacks.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement secure communication practices to mitigate SSL-related risks.

Patching and Updates

Ensure timely application of security patches and updates to prevent exploitation of known vulnerabilities.