CVE-2024-55662

Comprehensive Technical Analysis of CVE-2024-55662

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-55662 CVSS Score: 9.9

The vulnerability in XWiki Platform allows any user to execute arbitrary code on the server, provided the Extension Repository Application is installed. This vulnerability is present in versions starting from 3.3-milestone-1 up to 15.10.8 and 16.2.x. The CVSS score of 9.9 indicates a critical severity, reflecting the potential for significant impact if exploited.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Code Execution: Any user, including unauthenticated ones, can exploit this vulnerability to execute arbitrary code on the server.
• Privilege Escalation: An attacker could leverage this vulnerability to gain elevated privileges, potentially leading to full control over the server.

Exploitation Methods:

• Code Injection: Attackers can inject malicious code through the Extension Repository Application, which is then executed on the server.
• Remote Code Execution (RCE): The vulnerability allows for remote code execution, enabling attackers to run commands and scripts on the affected server.

3. Affected Systems and Software Versions

Affected Versions:

• XWiki Platform versions from 3.3-milestone-1 to 15.10.8
• XWiki Platform versions from 16.0.0 to 16.2.x

Fixed Versions:

• XWiki Platform 15.10.9
• XWiki Platform 16.3.0

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Upgrade to the patched versions 15.10.9 or 16.3.0.
• Disable Extension Repository Application: If the Extension Repository Application is not in use, disable it to mitigate the risk.

Long-Term Strategies:

• Regular Patching: Implement a regular patching and update schedule for all software components.
• Access Control: Enforce strict access controls and monitor user activities to detect and prevent unauthorized actions.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

5. Impact on Cybersecurity Landscape

The critical nature of this vulnerability underscores the importance of timely patching and regular security assessments. Organizations using XWiki Platform must prioritize updates and implement robust security measures to protect against such high-severity vulnerabilities. The potential for unauthenticated code execution highlights the need for continuous monitoring and incident response capabilities.

6. Technical Details for Security Professionals

Vulnerability Details:

• Root Cause: The vulnerability stems from insufficient validation of user inputs in the Extension Repository Application, allowing for code injection and execution.
• Exploit Path: The exploit involves sending crafted requests to the Extension Repository Application, which processes the input without proper sanitization.

Patch Information:

• Commit Reference: 8659f17d500522bf33595e402391592a35a162e8
• Affected Pages: ExtensionCode.ExtensionSheet and ExtensionCode.ExtensionAuthorsDisplayer

Manual Patch Application:

• Apply the patches from the specified commit to the affected pages if upgrading is not immediately feasible.

References:

• GitHub Commit
• GitHub Security Advisory
• Jira Issue

Conclusion

CVE-2024-55662 represents a critical vulnerability in XWiki Platform that requires immediate attention. Organizations should prioritize upgrading to the patched versions or disabling the Extension Repository Application if not in use. Regular security assessments and timely patching are essential to mitigate such high-severity vulnerabilities and maintain a robust cybersecurity posture.