CVE-2021-31818 : Security Advisory and Response

This CVE-2021-31818 article provides detailed information about an authenticated SQL injection vulnerability affecting certain versions of Octopus Server in the Events REST API.

Understanding CVE-2021-31818:

This CVE-2021-31818 vulnerability impacts Octopus Server, potentially leading to unauthorized access to database tables through a SQL injection attack.

What is CVE-2021-31818?

This CVE identifies an authenticated SQL injection vulnerability in the Events REST API of Octopus Server due to incorrect parameterization of user-supplied data. Attackers exploiting this flaw could gain unauthorized access to database tables.

The Impact of CVE-2021-31818

The impact of this vulnerability is severe as it allows attackers to perform SQL injection attacks, potentially compromising sensitive data within the affected Octopus Server instances.

Technical Details of CVE-2021-31818

This section details the vulnerability, affected systems, and exploitation mechanism of CVE-2021-31818.

Vulnerability Description

The vulnerability lies in the Events REST API of Octopus Server, where user-supplied data in API requests is not correctly parameterized, paving the way for an authenticated SQL injection attack.

Affected Systems and Versions

Affected versions of Octopus Server include 2018.9.17, versions between 2020.6.5146 and 2021.1.7316 (excluding both), and 2021.1.7149.

Exploitation Mechanism

Exploiting this vulnerability involves sending crafted SQL injection queries through the Events REST API, circumventing proper parameterization and gaining unauthorized access to database tables.

Mitigation and Prevention

To protect systems from CVE-2021-31818, immediate action and long-term security practices are essential.

Immediate Steps to Take

Organizations should update their Octopus Server installation to a patched version or apply available fixes provided by Octopus Deploy. It is crucial to monitor for any unauthorized access attempts.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and educating developers on secure coding techniques can mitigate the risk of similar vulnerabilities in the future.

Patching and Updates

Regularly apply security patches and updates provided by Octopus Deploy to ensure the mitigation of known vulnerabilities and enhance the overall security posture of Octopus Server installations.