CVE-2018-1630 : What You Need to Know
Learn about CVE-2018-1630, a high-severity vulnerability in IBM Informix Dynamic Server Enterprise Edition 12.1 that allows local users to gain root privileges. Find mitigation steps and long-term security practices here.
A symbolic link vulnerability in onmode in version 12.1 of IBM Informix Dynamic Server Enterprise Edition could potentially enable a local user, who is logged in with a database administrator account, to obtain elevated privileges, including root access.
Understanding CVE-2018-1630
This CVE involves a privilege escalation vulnerability in IBM Informix Dynamic Server Enterprise Edition version 12.1.
What is CVE-2018-1630?
CVE-2018-1630 is a vulnerability in IBM Informix Dynamic Server Enterprise Edition 12.1 that allows a local user with a database administrator account to gain root privileges through a symbolic link vulnerability in onmode.
The Impact of CVE-2018-1630
The vulnerability has a CVSSv3 base score of 8.2 (High severity) and could lead to a local user escalating their privileges to gain root access.
Technical Details of CVE-2018-1630
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in IBM Informix Dynamic Server Enterprise Edition 12.1 allows a local user to exploit a symbolic link vulnerability in onmode to gain elevated privileges.
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: High
- User Interaction: None
- Exploit Code Maturity: Unproven
- Impact: High confidentiality, integrity, and availability
Mitigation and Prevention
To address CVE-2018-1630, follow these mitigation strategies:
Immediate Steps to Take
- Apply the official fix provided by IBM.
- Restrict access to vulnerable systems.
- Monitor for any unauthorized access attempts.
Long-Term Security Practices
- Regularly update and patch the Informix Dynamic Server Enterprise Edition.
- Implement the principle of least privilege to limit user access.
- Conduct security training for users to recognize and report suspicious activities.
Patching and Updates
Ensure that you regularly check for security updates and patches from IBM to address vulnerabilities like CVE-2018-1630.