CVE-2024-32166 in Webid
Summary
by MITRE • 04/19/2024
Webid v1.2.1 suffers from an Insecure Direct Object Reference (IDOR) - Broken Access Control vulnerability, allowing attackers to buy now an auction that is suspended (horizontal privilege escalation).
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Analysis
by VulDB Data Team • 06/03/2025
The vulnerability identified as CVE-2024-32166 affects Webid version 1.2.1 and represents a critical Insecure Direct Object Reference issue classified under CWE-284. This weakness manifests as a broken access control vulnerability that enables attackers to manipulate auction objects through direct references rather than proper authorization checks. The flaw specifically allows unauthorized users to purchase suspended auctions, effectively bypassing the intended access controls that should prevent such transactions.
The technical implementation of this vulnerability stems from inadequate input validation and authorization mechanisms within the auction processing system. When users attempt to purchase auctions, the application fails to properly verify whether the requesting user has appropriate permissions to interact with the target auction object. This occurs because the system relies on direct object references such as auction IDs in URLs or API calls without implementing proper access control checks. Attackers can exploit this by simply modifying auction identifiers in their requests to access suspended auctions that should be unavailable to regular users.
From an operational perspective, this vulnerability creates a significant horizontal privilege escalation scenario where attackers can access objects they should not have permission to interact with. The impact extends beyond simple unauthorized access as it allows malicious actors to manipulate auction outcomes and potentially gain unfair advantages in competitive environments. The vulnerability affects the core business logic of the auction system, undermining the integrity of the platform's access control mechanisms and potentially leading to financial losses or reputational damage.
The exploitation of this vulnerability follows established patterns documented in the ATT&CK framework under privilege escalation techniques, specifically targeting access control mechanisms. Attackers can systematically enumerate auction identifiers and test various access patterns to identify suspended auctions they can manipulate. This type of vulnerability is particularly dangerous in auction systems where the integrity of the bidding process is paramount and where unauthorized access could lead to market manipulation or fraud.
Mitigation strategies should focus on implementing proper access control checks at every point where direct object references are used. The system must validate user permissions against each auction object before allowing any transactional operations. This includes implementing proper authentication and authorization layers that check user roles and permissions against the target resource. Additionally, organizations should adopt parameterized access controls, implement proper input sanitization, and ensure that all object references are validated through server-side checks rather than relying on client-side or URL-based identifiers alone. The implementation should follow secure coding practices that align with OWASP secure coding guidelines and address the specific access control weaknesses that enable this type of horizontal privilege escalation.