CVE-2019-4253 : Security Advisory and Response

A potential security vulnerability has been identified in IBM Informix Dynamic Server Enterprise Edition version 12.1, allowing a local user to execute arbitrary code and gain unauthorized root access privileges.

Understanding CVE-2019-4253

What is CVE-2019-4253?

IBM Informix Dynamic Server Enterprise Edition version 12.1 is susceptible to a vulnerability that enables a local user with privileged access to load a harmful shared library, potentially leading to the execution of arbitrary code and unauthorized root access.

The Impact of CVE-2019-4253

The vulnerability poses a high risk with a CVSS base score of 7.8, indicating a high severity level. Successful exploitation could result in unauthorized root access privileges.

Technical Details of CVE-2019-4253

Vulnerability Description

The vulnerability allows a local Informix user with privileged access to execute arbitrary code by loading a harmful shared library.

Affected Systems and Versions

Product: Informix Dynamic Server Enterprise Edition
Vendor: IBM
Version: 12.1

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Exploit Code Maturity: Unproven

Mitigation and Prevention

Immediate Steps to Take

Apply the official fix provided by IBM to address the vulnerability.
Restrict access to privileged accounts to minimize the risk of exploitation.

Long-Term Security Practices

Regularly monitor and update security patches for Informix Dynamic Server Enterprise Edition.
Conduct security training for users to raise awareness of potential threats.

Patching and Updates

Stay informed about security bulletins and updates from IBM to ensure timely patching of vulnerabilities.