CVE-2018-1633 : Security Advisory and Response

A symbolic link vulnerability in onsrvapd within IBM Informix Dynamic Server Enterprise Edition 12.1 could potentially enable a local user with database administrator privileges to obtain root privileges.

Understanding CVE-2018-1633

IBM Informix Dynamic Server Enterprise Edition 12.1 vulnerability with potential privilege escalation.

What is CVE-2018-1633?

Symbolic link vulnerability in onsrvapd in IBM Informix Dynamic Server Enterprise Edition 12.1
Allows a local user with database admin privileges to gain root access

The Impact of CVE-2018-1633

CVSS v3.0 Base Score: 8.2 (High)
Attack Complexity: Low
Attack Vector: Local
Confidentiality, Integrity, and Availability Impact: High
Privileges Required: High
Exploit Code Maturity: Unproven

Technical Details of CVE-2018-1633

Vulnerability details and affected systems.

Vulnerability Description

Local user with database admin rights can exploit symbolic link vulnerability to escalate privileges

Affected Systems and Versions

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

Exploitation Mechanism

Local user logged in with database admin privileges can gain root access

Mitigation and Prevention

Steps to mitigate and prevent exploitation.

Immediate Steps to Take

Apply official fix provided by IBM
Limit user privileges to reduce the impact of potential exploitation

Long-Term Security Practices

Regularly monitor and update security patches
Conduct security training for users to prevent privilege escalation
Implement least privilege access controls

Patching and Updates

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