CVE-2007-0516 in Yana Framework
Summary
by MITRE
Yana Framework before 2.8.5a allows remote authenticated users with permissions to modify a guestbook profile to modify or delete arbitrary guestbook profiles via unspecified vectors. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 10/06/2017
The vulnerability identified as CVE-2007-0516 affects the Yana Framework version 2.8.5a and earlier, presenting a significant authorization flaw that enables authenticated attackers to manipulate guestbook profiles beyond their intended scope. This issue stems from insufficient access control mechanisms within the framework's guestbook management system, allowing users with limited permissions to execute actions that should be restricted to administrators or authorized personnel. The vulnerability operates through unspecified vectors that likely involve manipulation of session tokens, request parameters, or direct object references that are not properly validated or sanitized.
The technical flaw represents a classic case of insufficient authorization checks and potentially improper input validation within the web application's guestbook module. Attackers with guestbook profile modification permissions can exploit this weakness to target profiles belonging to other users, effectively bypassing the intended access controls that should prevent such cross-user operations. This type of vulnerability falls under the CWE-285 category of Improper Authorization, specifically manifesting as an authorization bypass where legitimate authenticated users can perform unauthorized actions against resources they should not have access to. The vulnerability's classification aligns with ATT&CK technique T1078.004 which covers Valid Accounts and T1499.004 which covers Endpoint Development and Deployment, as it enables unauthorized profile manipulation through legitimate user accounts.
The operational impact of this vulnerability is substantial as it allows attackers to modify or delete guestbook entries belonging to other users, potentially leading to data integrity compromises, information disclosure, or even service disruption. An attacker could leverage this flaw to remove critical guestbook entries, alter user comments, or delete entire guestbook profiles, causing reputational damage to the website owner and potentially enabling further attacks through compromised user data. The vulnerability essentially transforms a limited user permission into a broader administrative capability, making it particularly dangerous in environments where guestbook functionality serves as a communication channel for users. This type of authorization bypass can also serve as a stepping stone for more extensive attacks, as it demonstrates that the application's access control mechanisms are insufficient to prevent unauthorized operations.
Mitigation strategies should focus on implementing proper input validation and authorization checks within the guestbook management module. The framework should enforce strict access controls that validate not only authentication status but also the ownership or authorization level of users attempting to modify specific guestbook entries. Implementing proper parameter validation, using secure coding practices for object references, and ensuring that all user actions are verified against appropriate access control lists would significantly reduce the risk. Additionally, the application should implement proper logging of profile modification activities to detect unauthorized access attempts. The solution aligns with security best practices outlined in the OWASP Top Ten 2017 category A07: Identification and Authentication Failures, which emphasizes the importance of robust access control mechanisms and proper authorization checks. Regular security assessments and code reviews focusing on authorization logic would help identify similar vulnerabilities in other parts of the application that might be susceptible to the same class of attack vectors.