CVE-2024-31984

Comprehensive Technical Analysis of CVE-2024-31984

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-31984 CVSS Score: 9.9

The vulnerability in XWiki Platform allows remote code execution (RCE) through a specially crafted document title. This vulnerability is severe, as indicated by its high CVSS score of 9.9. The ability to execute arbitrary Groovy code compromises the confidentiality, integrity, and availability of the entire XWiki installation. This makes it a critical issue that requires immediate attention.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Users: If the default permissions allow all users to edit document titles, any user can exploit this vulnerability.
• Authenticated Users: Even if permissions are restricted, any user with edit rights can exploit this vulnerability.

Exploitation Methods:

• Crafted Document Title: An attacker can create a document with a title that includes malicious Groovy code.
• Solr-based Search: The vulnerability is triggered during the search process, which uses Solr, allowing the execution of the injected code.

3. Affected Systems and Software Versions

Affected Versions:

• XWiki Platform versions starting from 7.2-rc-1 up to but not including 14.10.20, 15.5.4, and 15.10-rc-1.

Patched Versions:

• XWiki 14.10.20
• XWiki 15.5.4
• XWiki 15.10 RC1

4. Recommended Mitigation Strategies

Immediate Actions:

• Upgrade: Upgrade to the patched versions (14.10.20, 15.5.4, or 15.10 RC1) as soon as possible.
• Workaround: Manually apply the patch to the Main.SolrSpaceFacet page if upgrading is not immediately feasible.

Long-term Strategies:

• Restrict Permissions: Limit the ability to edit document titles to trusted users only.
• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Monitoring: Implement monitoring to detect and respond to any suspicious activities related to document creation and editing.

5. Impact on Cybersecurity Landscape

This vulnerability highlights the importance of securing input validation and permission management in collaborative platforms. The ability to execute arbitrary code through a seemingly innocuous feature like document titles underscores the need for comprehensive security testing and continuous monitoring. Organizations using XWiki or similar platforms should review their security posture and ensure that all potential attack vectors are addressed.

6. Technical Details for Security Professionals

Exploit Details:

• The vulnerability is triggered by the Solr-based search functionality in XWiki.
• The malicious code is injected through the document title, which is then processed by the search engine, leading to RCE.

Patch Analysis:

• The patches provided in the references address the input validation and sanitization of document titles to prevent code injection.
• Key commits include:
  • 43c9d551e3c11e9d8f176b556dd33bbe31fc66e0
  • 5ef9d294d37be92ee22b2549e38663b29dce8767
  • 74e301c481e69eeea674dac7fed6af3614cf08c5
  • 94fc12db87c2431eb1335ecb9c2954b1905bde62
  • acba74c149a041345b24dcca52c586f872ba97fb
  • ef55105d6eeec5635fd693f0070c5aaaf3bdd940

Vendor Advisory:

• Detailed information and advisories can be found at:
  • GHSA-xm4h-3jxr-m3c6
  • XWIKI-21471

Conclusion: CVE-2024-31984 is a critical vulnerability that requires immediate attention. Organizations using XWiki should prioritize upgrading to the patched versions and implement additional security measures to mitigate the risk of exploitation. Regular security assessments and monitoring are essential to maintain a robust security posture.