CVE-2020-4623 : Security Advisory and Response

IBM i2 iBase 8.9.13 could allow a local authenticated attacker to execute arbitrary code on the system due to a DLL search order hijacking flaw.

Understanding CVE-2020-4623

IBM i2 iBase 8.9.13 vulnerability with a high impact and severity rating.

What is CVE-2020-4623?

The vulnerability in IBM i2 iBase 8.9.13 allows a local authenticated attacker to run arbitrary code on the system using a malicious .DLL file.

The Impact of CVE-2020-4623

CVSS Base Score: 7.7 (High)
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Attack Vector: Local
Privileges Required: High
User Interaction: Required
Exploit Code Maturity: Unproven
Scope: Changed
Vector String: CVSS:3.0/A:H/I:H/AC:L/C:H/UI:R/AV:L/PR:H/S:C/E:U/RC:C/RL:O

Technical Details of CVE-2020-4623

Details on the vulnerability affecting IBM i2 iBase 8.9.13.

Vulnerability Description

The flaw in IBM i2 iBase 8.9.13 allows a local authenticated attacker to execute arbitrary code through a specially-crafted .DLL file.

Affected Systems and Versions

Product: i2 iBase
Vendor: IBM
Version: 8.9.13

Exploitation Mechanism

The attacker can exploit this vulnerability by manipulating the DLL search order and executing malicious code on the system.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2020-4623 vulnerability.

Immediate Steps to Take

Apply the official fix provided by IBM to address the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement strong authentication mechanisms to prevent unauthorized access.
Conduct regular security assessments and audits to identify and address potential risks.

Patching and Updates

Ensure that all systems running IBM i2 iBase are updated with the latest patches and security fixes.