CVE-2024-32604 in WP-Recall Plugin
Summary
by MITRE • 04/18/2024
Authorization Bypass Through User-Controlled Key vulnerability in Plechev Andrey WP-Recall.This issue affects WP-Recall: from n/a through 16.26.5.
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Analysis
by VulDB Data Team • 04/18/2024
The CVE-2024-32604 vulnerability represents a critical authorization bypass flaw within the WP-Recall plugin for WordPress, specifically impacting versions ranging from the initial release through 16.26.5. This vulnerability stems from improper validation of user-controlled input that governs access control mechanisms, allowing authenticated users to manipulate key parameters that should remain protected from unauthorized modification. The flaw exists in the plugin's handling of user inputs that influence authorization decisions, creating a pathway for privilege escalation where legitimate users can bypass intended security controls. The vulnerability manifests when the plugin fails to properly validate or sanitize user-provided keys that are used to determine access permissions, potentially enabling attackers to gain elevated privileges or access restricted functionality.
The technical implementation of this authorization bypass occurs through manipulation of user-controlled key parameters within the plugin's access control system. When users interact with the plugin's administrative functions, the system relies on specific keys or tokens to validate authorization levels. However, the vulnerability allows attackers to supply modified or crafted key values that circumvent the normal authorization checks. This type of flaw typically aligns with CWE-285, which addresses improper authorization in software systems, and represents a direct violation of the principle of least privilege. The vulnerability's impact is amplified by the fact that it affects authenticated users who already possess some level of access, making it particularly dangerous as it can be exploited by users with legitimate but limited permissions.
From an operational perspective, this vulnerability creates significant security risks for WordPress installations using the affected WP-Recall plugin. Attackers who successfully exploit this authorization bypass can potentially access restricted administrative functions, modify plugin configurations, or gain access to sensitive data that should only be available to privileged users. The vulnerability's scope extends beyond simple privilege escalation, as it could enable attackers to manipulate recall functionality, potentially affecting data integrity and availability. This type of vulnerability is particularly concerning in environments where multiple users have access to the WordPress system, as it provides a mechanism for users with limited permissions to escalate their access level. The ATT&CK framework categorizes this vulnerability under privilege escalation techniques, specifically targeting the T1078 credential access sub-technique where adversaries use valid credentials to bypass access controls.
Mitigation strategies for CVE-2024-32604 require immediate action from system administrators, including updating to the latest version of WP-Recall where the vulnerability has been patched. Organizations should also implement network segmentation and access controls to limit the impact of potential exploitation, while monitoring for suspicious activities related to plugin usage and access control changes. Security teams should conduct thorough audits of user permissions and access logs to identify any potential exploitation attempts. The vulnerability highlights the importance of proper input validation and authorization checking in web applications, particularly those handling user-controlled data. Organizations should also consider implementing additional security layers such as web application firewalls and privilege monitoring tools to detect and prevent exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar authorization bypass vulnerabilities in other plugins and applications within the WordPress ecosystem.