CVE-2020-13955 : What You Need to Know
Learn about CVE-2020-13955 affecting Apache Calcite 0.8 to 1.25, allowing man-in-the-middle attacks due to disabled hostname verification for HTTPS connections. Find mitigation steps and prevention measures.
Apache Calcite 0.8 to 1.25 is affected by a vulnerability that allows man-in-the-middle attacks due to disabled hostname verification for HTTPS connections.
Understanding CVE-2020-13955
This CVE impacts Apache Calcite versions 0.8 to 1.25, potentially leading to information leakage and security risks.
What is CVE-2020-13955?
The HttpUtils#getURLConnection method in Apache Calcite disables hostname verification for HTTPS connections, exposing clients to man-in-the-middle attacks. This vulnerability can result in information leakage when using Calcite adapters to connect with Druid and Splunk.
The Impact of CVE-2020-13955
The vulnerability allows attackers to intercept sensitive data transmitted over HTTPS connections, leading to potential information disclosure.
Technical Details of CVE-2020-13955
Apache Calcite 0.8 to 1.25 is susceptible to a security flaw that compromises the integrity of HTTPS connections.
Vulnerability Description
The HttpUtils#getURLConnection method in Apache Calcite disables hostname verification for HTTPS connections, creating a security gap that can be exploited by attackers.
Affected Systems and Versions
- Product: Apache Calcite
- Versions: 0.8 to 1.25
Exploitation Mechanism
Attackers can exploit this vulnerability to intercept and manipulate data transmitted over HTTPS connections, potentially leading to information leakage.
Mitigation and Prevention
To address CVE-2020-13955, immediate actions and long-term security practices are recommended.
Immediate Steps to Take
- Upgrade to Apache Calcite version 1.26 or later to enable hostname verification for HTTPS connections.
- Implement network monitoring to detect any suspicious activities related to HTTPS traffic.
Long-Term Security Practices
- Regularly update and patch Apache Calcite to mitigate known vulnerabilities.
- Educate users on secure HTTPS connection practices to prevent man-in-the-middle attacks.
Patching and Updates
Ensure timely installation of security patches and updates provided by Apache Calcite to address vulnerabilities and enhance system security.