CVE-2023-32669 in BuddyBoss
Summary
by MITRE • 10/25/2023
Authorization bypass vulnerability in BuddyBoss 2.2.9 version, the exploitation of which could allow an authenticated user to access and rename other users' albums. This vulnerability can be exploited by changing the album identification (id).
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Analysis
by VulDB Data Team • 10/25/2023
The CVE-2023-32669 vulnerability represents a critical authorization bypass flaw within the BuddyBoss platform version 2.2.9, specifically targeting the photo album management functionality. This security weakness stems from inadequate input validation and insufficient access control mechanisms that govern user interactions with multimedia content. The vulnerability allows authenticated users to manipulate album identification parameters through direct input modification, thereby gaining unauthorized access to and control over other users' photo collections. The flaw exists within the application's permission system where proper user authentication checks are bypassed when processing album identification parameters, creating a pathway for privilege escalation attacks. This type of vulnerability falls under the CWE-285 category of improper authorization, which specifically addresses situations where an attacker can perform actions beyond their granted permissions. The attack vector leverages parameter manipulation techniques that align with ATT&CK tactic TA0001 (Initial Access) and technique T1078 (Valid Accounts) by exploiting legitimate user credentials to perform unauthorized operations.
The technical implementation of this vulnerability exploits the lack of proper user context validation within the album management system. When an authenticated user attempts to access or modify an album, the application should verify that the requesting user has legitimate ownership or permission rights to perform the requested action. However, the current implementation fails to properly validate whether the user attempting to rename or access an album possesses the appropriate authorization level. The vulnerability manifests when a user modifies the album id parameter in requests made to the photo album endpoints, allowing them to reference albums belonging to other users. This occurs because the application does not properly check the relationship between the authenticated user and the album being accessed, instead relying on the provided id parameter without sufficient verification. The flaw demonstrates a classic broken access control pattern where the application trusts user-provided input without proper authorization checks, making it susceptible to manipulation by attackers who understand the application's data structure and API endpoints.
The operational impact of CVE-2023-32669 extends beyond simple data access violations to encompass significant privacy and data integrity concerns within the BuddyBoss platform ecosystem. An attacker exploiting this vulnerability can not only access other users' photo albums but also rename them, potentially causing confusion and data corruption within the platform's media management system. This unauthorized album renaming capability could be used for malicious purposes such as defacement, impersonation, or disruption of user content organization. The vulnerability affects all authenticated users within the platform, creating a widespread risk that could compromise user privacy and trust in the system. Organizations relying on BuddyBoss for community management, social networking, or collaborative content sharing may face reputational damage and potential regulatory compliance issues if user data is accessed or modified without proper authorization. The impact is particularly severe in environments where sensitive personal information is stored within photo albums, as this vulnerability could expose private content to unauthorized individuals. Additionally, the vulnerability could facilitate further attacks by providing attackers with insights into the platform's data structure and access patterns, potentially enabling more sophisticated exploitation techniques.
Mitigation strategies for CVE-2023-32669 require immediate implementation of proper input validation and access control mechanisms within the BuddyBoss platform. The primary fix involves implementing robust user context verification that checks the authenticated user's relationship to the target album before allowing any operations. This includes verifying that the album id parameter corresponds to albums owned by the authenticated user or that the user possesses appropriate permissions to access the requested resource. Organizations should implement proper parameter sanitization and validation techniques that ensure all user-provided identification parameters are properly verified against the authenticated user's access rights. The solution should enforce strict access control policies that prevent users from manipulating album identification parameters to access unauthorized content. Additionally, implementing comprehensive logging and monitoring of album access and modification activities can help detect suspicious behavior and unauthorized access attempts. Security patches should be applied immediately to all affected BuddyBoss installations, with organizations conducting thorough vulnerability assessments to identify any similar access control weaknesses within their broader platform ecosystem. The fix should align with security best practices outlined in the OWASP Top Ten and NIST Cybersecurity Framework, particularly focusing on proper authentication and access control mechanisms to prevent unauthorized data access and manipulation.