CVE-2023-48241 Scanner

XWiki is a powerful open-source wiki platform that is widely used by organizations and communities to create collaborative content. It provides a rich feature set allowing users to organize, edit, and share documents and information seamlessly. The platform is implemented using Java and offers flexible configurations and extensibility, making it suitable for various use cases. XWiki users can build intranets, knowledge bases, and asset management systems, benefiting from its intuitive user interface. However, ensuring the security of information stored in XWiki is crucial as it often contains sensitive and collaborative data. XWiki administrators regularly monitor updates to mitigate potential vulnerabilities.

Information Disclosure vulnerabilities allow unauthorized access to sensitive information that should not be publicly available. This vulnerability specifically enables attackers to exploit a flaw in XWiki's Solr-based search suggestion provider, potentially exposing all documents across wikis. By default, sensitive data stored in wikis can be accessed if adequate protections are not enforced due to incorrect right checks. A successful exploit of this vulnerability gives attackers access to significant data without the appropriate permissions. Maintaining tight access control and visibility over information access is essential to prevent data leakage.

The identified vulnerability involves circumventing the default data access checks in XWiki's Solr search provider. When certain Solr fields are requested, the framework bypasses checks that should restrict data access, inadvertently allowing the exposure of sensitive document information. One can exploit this flaw using specific query parameters in a URL to retrieve unauthorized data. Specifically, the use of fields such as 'title_', 'reference', and 'doccontentraw_' in a crafted URL can lead to the exposure of sensitive document content.

If not remediated, exploitation of this vulnerability can allow attackers to gather sensitive information that could be used for malicious purposes, such as identity theft, corporate espionage, or further attacks weakening the system's security posture. The exposure of confidential data could severely impact organizational reputation, legal standing, and operational security. Unauthorized information dissemination can lead to financial, legal, and reputational consequences, emphasizing the need for robust security measures and timely vulnerability management.

REFERENCES

• https://jira.xwiki.org/browse/XWIKI-21138
• https://nvd.nist.gov/vuln/detail/CVE-2023-48241