CVE-2020-13926 Explained : Impact and Mitigation

Apache Kylin versions 2.0.0 to 3.0.2 are vulnerable to SQL Injection due to improper handling of system configurations, allowing attackers to execute malicious SQL commands.

Understanding CVE-2020-13926

Apache Kylin is susceptible to SQL Injection attacks, potentially leading to unauthorized access and data manipulation.

What is CVE-2020-13926?

Kylin concatenates and executes a Hive SQL in Hive CLI or beeline when building a new segment. Part of the HQL comes from system configurations, which can be overwritten by specific REST APIs, enabling SQL injection attacks.

The Impact of CVE-2020-13926

The vulnerability in Apache Kylin could be exploited by attackers to execute arbitrary SQL commands, compromising the integrity and confidentiality of data stored in affected systems.

Technical Details of CVE-2020-13926

Apache Kylin's vulnerability to SQL Injection poses a significant risk to the security of the system.

Vulnerability Description

The issue arises from the system configurations that can be manipulated through REST APIs, allowing malicious SQL injection attacks.

Affected Systems and Versions

Apache Kylin 2.0.0 to 3.0.2

Exploitation Mechanism

Attackers can exploit the vulnerability by injecting malicious SQL commands through manipulated system configurations.

Mitigation and Prevention

It is crucial to take immediate action to secure systems against CVE-2020-13926.

Immediate Steps to Take

Upgrade Apache Kylin to version 3.1.0 to mitigate the SQL Injection vulnerability.

Long-Term Security Practices

Regularly monitor and audit system configurations to detect any unauthorized changes.
Implement strict input validation mechanisms to prevent SQL injection attacks.

Patching and Updates

Stay informed about security updates and patches released by Apache Kylin to address vulnerabilities like SQL Injection.