CVE-2018-1799 : Exploit Details and Defense Strategies

IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 have a vulnerability that could allow unauthorized file modification by a local user without privileged access.

Understanding CVE-2018-1799

In versions 9.7, 10.1, 10.5, and 11.1 of IBM DB2 for Linux, UNIX, and Windows, a potential vulnerability exists that could be exploited by a local user without privileged access, leading to unauthorized file modifications and potential database damage.

What is CVE-2018-1799?

Vulnerability in IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1
Allows a local unprivileged user to overwrite system files, potentially damaging the database

The Impact of CVE-2018-1799

Base Score: 6.2 (Medium Severity)
Attack Vector: Local
Integrity Impact: High
Exploitation could result in unauthorized file modifications and database damage

Technical Details of CVE-2018-1799

Vulnerability Description

The vulnerability in IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 allows local unprivileged users to overwrite system files, potentially causing database damage.

Affected Systems and Versions

Product: DB2 for Linux, UNIX, and Windows
Vendor: IBM
Affected Versions: 9.7, 10.1, 10.5, 11.1

Exploitation Mechanism

Attack Complexity: Low
Privileges Required: None
Exploit Code Maturity: Unproven
Scope: Unchanged

Mitigation and Prevention

Immediate Steps to Take

Apply official fixes provided by IBM
Monitor system files for unauthorized modifications

Long-Term Security Practices

Restrict local user permissions to prevent unauthorized file modifications
Regularly update and patch IBM DB2 installations

Patching and Updates

IBM has released official fixes to address the vulnerability