CVE-2022-32769 in AVideo
Summary
by MITRE • 08/22/2022
Multiple authentication bypass vulnerabilities exist in the objects id handling functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364. A specially-crafted HTTP request by an authenticated user can lead to unauthorized access and takeover of resources. An attacker can send an HTTP request to trigger this vulnerability.This vulnerability exists in the Playlists plugin, allowing an attacker to bypass authentication by guessing a sequential ID, allowing them to take over the another user's playlists.
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Analysis
by VulDB Data Team • 09/24/2022
The vulnerability identified as CVE-2022-32769 represents a critical authentication bypass flaw within the WWBN AVideo platform version 11.6 and its development master branch at commit 3f7c0364. This security weakness specifically targets the object identifier handling mechanism within the system's playlist management functionality, creating a pathway for unauthorized access that directly compromises user resource integrity. The flaw stems from insufficient validation of user permissions and sequential ID guessing capabilities that allow authenticated users to exploit predictable identifier patterns.
The technical implementation of this vulnerability manifests through the Playlists plugin's inadequate access control measures, where the system fails to properly verify user authorization when processing requests for playlist resources. An attacker with valid authentication credentials can construct specially crafted HTTP requests that leverage sequential ID guessing techniques to access and manipulate playlists belonging to other users. This weakness directly violates the principle of least privilege and demonstrates poor input validation practices that enable privilege escalation through predictable resource identification.
From an operational perspective, this vulnerability creates significant risk for AVideo platform administrators and users who rely on the system's playlist management features. The authentication bypass allows attackers to completely take over another user's playlists, potentially leading to data theft, content manipulation, and unauthorized modifications to shared media collections. The impact extends beyond simple resource access, as playlist ownership and associated metadata become vulnerable to unauthorized changes that could affect content distribution and user experience.
The vulnerability aligns with CWE-285, which addresses improper authorization in software systems, and demonstrates characteristics consistent with ATT&CK technique T1078.004 related to valid accounts and privilege escalation. The sequential ID guessing approach reflects a common pattern of weak entropy in identifier generation, making it susceptible to brute force attacks. Security professionals should note that this vulnerability requires minimal expertise to exploit and can be automated, making it particularly dangerous in environments where multiple users maintain playlist resources. The attack vector through HTTP requests indicates that this vulnerability can be exploited remotely without requiring physical access or complex network positioning.
Mitigation strategies should include immediate implementation of proper access control validation mechanisms within the Playlists plugin, enforcement of randomized identifier generation to prevent sequential guessing, and comprehensive user permission verification for all playlist operations. System administrators should consider implementing rate limiting and monitoring for suspicious request patterns, while developers should ensure that all resource access requests undergo rigorous authorization checks. The vulnerability highlights the importance of secure identifier management practices and proper input validation in preventing unauthorized access to user resources, particularly in content management systems where user-generated content represents valuable assets.