CVE-2017-18094 : Exploit Details and Defense Strategies

Atlassian Fisheye and Crucible versions prior to 4.4.3 and 4.5.0 are vulnerable to a Cross Site Scripting (XSS) attack that allows remote attackers with administrative privileges to inject arbitrary HTML or JavaScript.

Understanding CVE-2017-18094

This CVE involves a security vulnerability in Atlassian Fisheye and Crucible that enables attackers to execute XSS attacks.

What is CVE-2017-18094?

Before versions 4.4.3 and 4.5.0 of Atlassian Fisheye and Crucible, a flaw existed that could be exploited by remote attackers with administrative privileges to inject malicious code using a cross site scripting (XSS) technique.

The Impact of CVE-2017-18094

The vulnerability allows attackers to inject arbitrary HTML or JavaScript code, potentially leading to unauthorized access, data theft, or further compromise of the affected systems.

Technical Details of CVE-2017-18094

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in Atlassian Fisheye and Crucible versions prior to 4.4.3 and 4.5.0 allows for the injection of arbitrary HTML or JavaScript code through a cross site scripting (XSS) attack by manipulating the base path setting of a configured file system repository.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by remote attackers with administrative privileges by manipulating the base path setting of a configured file system repository, enabling the injection of malicious code.

Mitigation and Prevention

Protecting systems from CVE-2017-18094 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Atlassian Fisheye and Crucible to versions 4.4.3 or 4.5.0 to mitigate the vulnerability.
Monitor and restrict administrative privileges to minimize the risk of exploitation.

Long-Term Security Practices

Regularly review and update security configurations to prevent XSS vulnerabilities.
Educate users on safe coding practices and the risks associated with XSS attacks.

Patching and Updates

Apply security patches and updates provided by Atlassian to address known vulnerabilities and enhance system security.