CVE-2022-24912 : Vulnerability Insights and Analysis

A Timing Attack vulnerability was discovered in the package github.com/runatlantis/atlantis/server/controllers/events before version 0.19.7. This vulnerability could allow an attacker to recover the webhook secret and forge webhook events.

Understanding CVE-2022-24912

This CVE, also known as a Timing Attack, poses a high severity risk due to improper validation of the webhook secret in the specified package.

What is CVE-2022-24912?

The package github.com/runatlantis/atlantis/server/controllers/events before version 0.19.7 is vulnerable to a Timing Attack in the webhook event validator code. Specifically, it lacks the use of a constant-time comparison function to validate the webhook secret, potentially enabling an attacker to recover this secret and create forged webhook events.

The Impact of CVE-2022-24912

With a base severity score of 7.5 (CVSS: 3.1), this vulnerability can result in the compromise of confidentiality as an attacker can gain unauthorized access to sensitive information. Since the integrity impact is none, the main concern lies in the potential breach of confidentiality.

Technical Details of CVE-2022-24912

The following technical aspects outline the vulnerability in detail:

Vulnerability Description

The vulnerability arises from the lack of a constant-time comparison function to validate the webhook secret, leading to a Timing Attack vector.

Affected Systems and Versions

The vulnerable package is github.com/runatlantis/atlantis/server/controllers/events with versions earlier than 0.19.7.

Exploitation Mechanism

By exploiting this vulnerability, an attacker can recover the webhook secret and subsequently forge webhook events to execute unauthorized actions.

Mitigation and Prevention

To address CVE-2022-24912, the following steps can be taken:

Immediate Steps to Take

Upgrade to version 0.19.7 or later of the package to mitigate the Timing Attack vulnerability.
Rotate the webhook secret to prevent unauthorized access.

Long-Term Security Practices

Regularly update dependencies and packages to ensure the latest security patches are applied.
Conduct security audits and code reviews to identify and mitigate vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and updates related to the package to patch any future vulnerabilities and enhance your system's security.