CVE-2018-20241 Explained : Impact and Mitigation
Learn about CVE-2018-20241 affecting Atlassian Fisheye and Crucible versions prior to 4.7.0. Understand the impact, technical details, and mitigation steps for this XSS vulnerability.
Atlassian Fisheye and Crucible before 4.7.0 are affected by a Cross-Site Scripting (XSS) vulnerability that allows remote attackers to inject arbitrary HTML or JavaScript.
Understanding CVE-2018-20241
This CVE involves a security issue in Atlassian Fisheye and Crucible that could lead to XSS attacks.
What is CVE-2018-20241?
The vulnerability in the Edit upload resource in Atlassian Fisheye and Crucible, prior to version 4.7.0, enables remote attackers to inject arbitrary HTML or JavaScript through a cross-site scripting (XSS) vulnerability found in the wbuser parameter.
The Impact of CVE-2018-20241
This vulnerability can be exploited by malicious actors to execute XSS attacks, potentially compromising the integrity of the affected systems and exposing sensitive information.
Technical Details of CVE-2018-20241
Atlassian Fisheye and Crucible versions prior to 4.7.0 are susceptible to this XSS vulnerability.
Vulnerability Description
The Edit upload resource for a review in Atlassian Fisheye and Crucible before version 4.7.0 allows remote attackers to inject arbitrary HTML or JavaScript via a cross-site scripting (XSS) vulnerability in the wbuser parameter.
Affected Systems and Versions
- Product: Fisheye and Crucible
- Vendor: Atlassian
- Versions Affected: < 4.7.0
Exploitation Mechanism
The vulnerability can be exploited by remote attackers to inject malicious code through the wbuser parameter, potentially leading to XSS attacks.
Mitigation and Prevention
To address CVE-2018-20241, follow these steps:
Immediate Steps to Take
- Update Atlassian Fisheye and Crucible to version 4.7.0 or later to mitigate the vulnerability.
- Monitor and restrict user input to prevent malicious code injection.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify and address vulnerabilities.
- Educate users and developers on secure coding practices to prevent XSS attacks.
Patching and Updates
- Stay informed about security updates from Atlassian and promptly apply patches to secure your systems.