CVE-2018-1487 : Vulnerability Insights and Analysis

IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 have a vulnerability that allows low privilege users to gain complete access to the DB2 instance account by loading a harmful shared library.

Understanding CVE-2018-1487

IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 are affected by a vulnerability that could lead to privilege escalation.

What is CVE-2018-1487?

The vulnerability in IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 allows low privilege users to load shared libraries from an untrusted path, potentially granting them complete access to the DB2 instance account by loading a malicious shared library.

The Impact of CVE-2018-1487

CVSS Base Score: 8.4 (High)
CVSS Vector: CVSS:3.0/A:H/AC:L/AV:L/C:H/I:H/PR:N/S:U/UI:N/E:U/RC:C/RL:O
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Exploit Code Maturity: Unproven
Remediation Level: Official Fix
Report Confidence: Confirmed
Temporal Score: 7.3 (High)

Technical Details of CVE-2018-1487

The technical details of the vulnerability are as follows:

Vulnerability Description

The vulnerability allows low privilege users to gain complete access to the DB2 instance account.

Affected Systems and Versions

IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1

Exploitation Mechanism

Shared libraries are loaded from an untrusted path, enabling the privilege escalation.

Mitigation and Prevention

To address CVE-2018-1487, follow these steps:

Immediate Steps to Take

Apply the official fix provided by IBM.
Monitor IBM's security advisories for updates.

Long-Term Security Practices

Regularly update and patch the DB2 software.
Implement least privilege access controls.

Patching and Updates

Ensure all DB2 instances are updated with the latest security patches.