CVE-2021-25755 : What You Need to Know

In JetBrains Code With Me before 2020.3, an attacker on the local network, knowing a session ID, could get access to the encrypted traffic.

Understanding CVE-2021-25755

This CVE details a security vulnerability found in JetBrains Code With Me before version 2020.3 that allows an attacker on the local network to access encrypted traffic with knowledge of a session ID.

What is CVE-2021-25755?

The vulnerability in JetBrains Code With Me exposes encrypted traffic to unauthorized access by an attacker who possesses a session ID, enabling them to intercept sensitive information transmitted over the network.

The Impact of CVE-2021-25755

The impact of this vulnerability is significant as it compromises the confidentiality and integrity of data transmitted through JetBrains Code With Me, potentially leading to unauthorized access to sensitive information and data breaches.

Technical Details of CVE-2021-25755

This section provides technical insights into the vulnerability, its affected systems, and the mechanism through which it can be exploited.

Vulnerability Description

The security issue in JetBrains Code With Me allows attackers on the local network to exploit a session ID to gain access to encrypted traffic, compromising the security of communications and data shared within the application.

Affected Systems and Versions

All versions of JetBrains Code With Me prior to 2020.3 are affected by this vulnerability, emphasizing the importance of upgrading to the latest secure version to mitigate the risk of exploitation.

Exploitation Mechanism

By leveraging a session ID, threat actors positioned on the local network can intercept and access encrypted traffic exchanged via JetBrains Code With Me, potentially leading to data theft and unauthorized surveillance.

Mitigation and Prevention

This section outlines the steps to mitigate the impact of CVE-2021-25755 and prevent future security breaches.

Immediate Steps to Take

Upgrade JetBrains Code With Me to version 2020.3 or higher to eliminate the vulnerability and enhance security controls within the application.
Implement network security measures to restrict unauthorized access to the local network, preventing attackers from exploiting the vulnerability.

Long-Term Security Practices

Regularly monitor network traffic and system logs for any suspicious activity that could indicate unauthorized access and potential exploitation of vulnerabilities.
Educate users and administrators about secure session management practices and the importance of safeguarding session IDs and sensitive information.

Patching and Updates

Stay informed about security updates and advisories from JetBrains to promptly apply patches and fixes that address known vulnerabilities, ensuring the continued protection of your systems and data.