CVE-2017-18081 Explained : Impact and Mitigation

Atlassian Bamboo prior to version 6.3.1 is vulnerable to a cross-site scripting (XSS) issue that allows attackers to inject malicious HTML or JavaScript code.

Understanding CVE-2017-18081

In versions of Atlassian Bamboo prior to 6.3.1, a security flaw in the signupUser resource enables remote attackers to exploit a cross-site scripting vulnerability.

What is CVE-2017-18081?

The vulnerability in Atlassian Bamboo allows attackers to inject HTML or JavaScript code remotely by manipulating the csrf token cookie.

The Impact of CVE-2017-18081

This XSS vulnerability can lead to unauthorized access, data theft, and potential manipulation of user interactions on affected systems.

Technical Details of CVE-2017-18081

Atlassian Bamboo's security issue is detailed below:

Vulnerability Description

The signupUser resource in Atlassian Bamboo before version 6.3.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross-site scripting (XSS) vulnerability through the value of the csrf token cookie.

Affected Systems and Versions

Product: Bamboo
Vendor: Atlassian
Versions Affected: Prior to 6.3.1

Exploitation Mechanism

Attackers exploit the vulnerability by manipulating the value of the csrf token cookie, enabling them to inject any type of HTML or JavaScript code remotely.

Mitigation and Prevention

To address CVE-2017-18081, consider the following steps:

Immediate Steps to Take

Upgrade Atlassian Bamboo to version 6.3.1 or later to mitigate the XSS vulnerability.
Monitor and validate user inputs to prevent malicious code injection.

Long-Term Security Practices

Implement regular security assessments and code reviews to identify and address vulnerabilities.
Educate developers and users on secure coding practices to prevent XSS attacks.

Patching and Updates

Stay informed about security updates and patches released by Atlassian to address known vulnerabilities.