CVE-2020-4230 : What You Need to Know

IBM DB2 for Linux, UNIX, and Windows versions 11.1 and 11.5 is vulnerable to an escalation of privilege when an authenticated local attacker with special permissions executes specially crafted Db2 commands.

Understanding CVE-2020-4230

IBM DB2 for Linux, UNIX, and Windows (includes DB2 Connect Server) 11.1 and 11.5 is susceptible to an escalation of privilege vulnerability.

What is CVE-2020-4230?

CVE-2020-4230 is a vulnerability in IBM DB2 that allows an authenticated local attacker with specific permissions to execute malicious Db2 commands, leading to an escalation of privilege.

The Impact of CVE-2020-4230

The vulnerability has a CVSS base score of 6.7 (Medium severity) and can result in high confidentiality, integrity, and availability impacts when exploited.

Technical Details of CVE-2020-4230

IBM DB2 for Linux, UNIX, and Windows versions 11.1 and 11.5 are affected by this vulnerability.

Vulnerability Description

The vulnerability allows an authenticated local attacker to escalate privileges by executing specially crafted Db2 commands.

Affected Systems and Versions

Product: DB2 for Linux, UNIX, and Windows
Vendor: IBM
Vulnerable Versions: 11.1, 11.5

Exploitation Mechanism

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

Mitigation and Prevention

Immediate Steps to Take:

Apply the official fix provided by IBM to address the vulnerability. Long-Term Security Practices:
Regularly monitor and update security patches for IBM DB2.
Restrict access and permissions to minimize the risk of privilege escalation.
Educate users on secure practices to prevent unauthorized execution of commands.
Conduct security assessments to identify and remediate vulnerabilities.
Stay informed about security bulletins and updates from IBM.
Implement security best practices to enhance overall system security.
Consider implementing additional security measures such as intrusion detection systems.
Regularly review and update security policies and procedures.
Engage in ongoing security training and awareness programs for personnel.
Collaborate with security experts to enhance the security posture of the environment.

Patching and Updates

Ensure timely installation of security patches and updates provided by IBM to mitigate the vulnerability.