CVE-2021-31821 Explained : Impact and Mitigation
Explore the impact of CVE-2021-31821, a critical vulnerability in Octopus Tentacle Windows Docker image revealing API key in plaintext. Learn about mitigation and preventive measures.
A critical vulnerability, CVE-2021-31821, has been identified in Octopus Deploy's Octopus Tentacle Windows Docker image. The flaw exposes the Octopus Server API key in plaintext when the image logs all commands it runs during startup. This issue does not impact the Linux Docker image.
Understanding CVE-2021-31821
This section delves into the nature of the vulnerability and its implications.
What is CVE-2021-31821?
The vulnerability involves the cleartext storage of sensitive information in the Octopus Tentacle Windows Docker image, specifically revealing the Octopus Server API key in plaintext.
The Impact of CVE-2021-31821
The flaw allows threat actors to potentially access and misuse the exposed Octopus Server API key, posing serious security risks to affected systems.
Technical Details of CVE-2021-31821
Explore the technical aspects of this vulnerability and its effects.
Vulnerability Description
During startup, the Windows Tentacle Docker image logs all commands and arguments, inadvertently exposing the Octopus Server API key in plaintext.
Affected Systems and Versions
The vulnerability affects Octopus Tentacle Windows Docker images with versions prior to 6.1.1266, while Linux Docker images remain unaffected.
Exploitation Mechanism
Threat actors can exploit this vulnerability by accessing the plaintext API key, potentially leading to unauthorized access and data breaches.
Mitigation and Prevention
Discover how to address and mitigate the risks posed by CVE-2021-31821.
Immediate Steps to Take
Users are advised to update affected Octopus Tentacle Windows Docker images to version 6.1.1266 or later immediately to prevent further exposure of sensitive information.
Long-Term Security Practices
Enforce secure coding practices, including avoiding the Storage of sensitive information in plaintext within Docker images, and regularly monitoring and updating all deployed containers.
Patching and Updates
Regularly check for security advisories from Octopus Deploy and promptly apply patches and updates to address known vulnerabilities and enhance the security posture of your systems.