CVE-2007-0131 in JAMWiki
Summary
by MITRE
JAMWiki before 0.5.0 does not properly check permissions during moves of "read-only or admin-only topics," which allows remote attackers to make unauthorized changes to the wiki.
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Analysis
by VulDB Data Team • 08/13/2018
The vulnerability described in CVE-2007-0131 affects JAMWiki versions prior to 0.5.0 and represents a critical access control flaw that undermines the security model of the wiki platform. This issue specifically targets the permission validation mechanisms during content movement operations, creating a scenario where authenticated users can exploit the system to modify content that should be restricted to read-only or administrative access only. The flaw demonstrates a fundamental failure in the application's authorization logic, where the system fails to properly validate user privileges before allowing content modification actions. This vulnerability exists within the context of wiki software where content management and access control are paramount to maintaining data integrity and preventing unauthorized modifications. The issue is particularly concerning because it allows remote attackers to bypass intended access restrictions, potentially enabling malicious actors to alter sensitive or protected wiki content without proper authorization.
The technical implementation of this vulnerability stems from inadequate permission validation during the move operation of specific wiki topics. When users attempt to move content within the JAMWiki system, the application should verify that the requesting user possesses sufficient privileges to both access and modify the source and destination topics. However, the flaw occurs in the authorization check logic where the system fails to properly validate whether the user has the necessary permissions to move content from a read-only or admin-only topic. This represents a classic authorization bypass vulnerability that can be classified under CWE-285, which deals with insufficient authorization in software applications. The vulnerability manifests when the system allows users to perform move operations on topics that should be restricted, effectively creating a backdoor for unauthorized modifications through legitimate system functions. The flaw is particularly dangerous because it operates at the application level and can be exploited remotely without requiring special privileges beyond basic authentication.
The operational impact of this vulnerability extends beyond simple content modification and represents a significant threat to wiki integrity and information security. Remote attackers can leverage this flaw to modify critical documentation, alter access control settings, or inject malicious content into protected sections of the wiki. This vulnerability undermines the trust model of the wiki system and can lead to data corruption, unauthorized access to sensitive information, or the complete compromise of wiki content integrity. The ability to move content from read-only or admin-only sections means that attackers can potentially gain access to restricted areas of the wiki, modify content that should remain unchanged, or even create new content in protected spaces. From an attacker's perspective, this vulnerability provides a stealthy method of gaining unauthorized access to restricted content without triggering typical security alerts, as the actions occur through legitimate system functions. The impact is particularly severe in environments where wikis serve as knowledge bases for sensitive organizational information or where content integrity is critical for compliance and audit purposes.
Mitigation strategies for this vulnerability should focus on implementing proper access control validation and ensuring that all content movement operations enforce strict permission checks. The most effective solution involves updating to JAMWiki version 0.5.0 or later, where the permission validation logic has been corrected to properly verify user privileges before allowing content moves. Organizations should also implement additional security measures such as regular access control reviews, monitoring of content modification activities, and enforcement of principle of least privilege for wiki users. The remediation process should include comprehensive testing to ensure that all move operations properly validate both source and destination permissions, and that the system correctly enforces access restrictions for read-only and admin-only topics. From a security framework perspective, this vulnerability highlights the importance of implementing proper authorization controls and aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation. Organizations should also consider implementing automated security scanning tools to identify similar permission bypass vulnerabilities in other wiki platforms and web applications, as this type of flaw is common in content management systems where access controls are not properly enforced during content manipulation operations.