CVE-2022-29890 : What You Need to Know

This article provides details about CVE-2022-29890, a vulnerability found in Octopus Server that allows a Cross-Site Scripting payload to be included in the support link of the help sidebar.

Understanding CVE-2022-29890

In affected versions of Octopus Server, an exploit in the help sidebar customization enables malicious actors to inject a Cross-Site Scripting payload via the support link.

What is CVE-2022-29890?

CVE-2022-29890 is a Stored Cross-Site Scripting (XSS) vulnerability discovered in Octopus Server, affecting specific versions of the software.

The Impact of CVE-2022-29890

This vulnerability can be exploited by attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2022-29890

The vulnerability allows threat actors to insert harmful code into the help sidebar's support link, leading to the execution of malicious scripts.

Vulnerability Description

In the affected versions of Octopus Server, the help sidebar customization feature can be abused to inject a Cross-Site Scripting payload.

Affected Systems and Versions

Versions of Octopus Deploy up to and including 2022.3.2387 are impacted by this vulnerability.

Exploitation Mechanism

By manipulating the support link in the help sidebar, attackers can insert XSS payloads to exploit unsuspecting users.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-29890, users of Octopus Server are advised to take the following steps:

Immediate Steps to Take

Upgrade Octopus Server to a non-affected version.
Implement filters to sanitize user-generated content and prevent XSS attacks.

Long-Term Security Practices

Regularly update Octopus Server to the latest version to patch known security vulnerabilities.
Educate users about the dangers of clicking on suspicious links to prevent exploitation of XSS vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by Octopus Deploy to address vulnerabilities like CVE-2022-29890.