CVE-2017-18089 : Exploit Details and Defense Strategies

In February 2018, CVE-2017-18089 was published, affecting Atlassian Crucible versions prior to 4.4.3 and 4.5.0. The vulnerability allowed remote attackers to inject arbitrary HTML or JavaScript through a cross-site scripting (XSS) issue in the view review history feature.

Understanding CVE-2017-18089

This CVE entry highlights a security vulnerability in Atlassian Crucible that could be exploited by attackers to execute XSS attacks.

What is CVE-2017-18089?

The vulnerability in Atlassian Crucible versions prior to 4.4.3 and 4.5.0 allowed remote attackers to inject malicious code using a cross-site scripting (XSS) technique related to invited reviewers for a review.

The Impact of CVE-2017-18089

The vulnerability posed a risk of arbitrary code execution by malicious actors, potentially leading to unauthorized access or data manipulation within the affected systems.

Technical Details of CVE-2017-18089

This section delves into the technical aspects of the CVE entry.

Vulnerability Description

The flaw in the view review history feature of Atlassian Crucible versions prior to 4.4.3 and 4.5.0 enabled remote attackers to insert arbitrary HTML or JavaScript code through a cross-site scripting (XSS) vulnerability.

Affected Systems and Versions

Product: Crucible
Vendor: Atlassian
Vulnerable Versions: Prior to 4.4.3 and 4.5.0

Exploitation Mechanism

The vulnerability could be exploited remotely by injecting malicious HTML or JavaScript code via the invited reviewers for a review in Atlassian Crucible.

Mitigation and Prevention

To address CVE-2017-18089 and enhance system security, consider the following steps:

Immediate Steps to Take

Upgrade Atlassian Crucible to version 4.4.3 or higher to mitigate the vulnerability.
Monitor and restrict access to the review history feature to authorized users only.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address potential vulnerabilities.
Educate users on safe browsing practices and the risks associated with XSS attacks.

Patching and Updates

Stay informed about security updates and patches released by Atlassian for Crucible to ensure the latest security measures are in place.