CVE-2024-46412 in Rebuild
Summary
by MITRE • 08/26/2025
Incorrect access control in the prehandle function of Rebuild v3.7.7 allows attackers to bypass authentication via a crafted GET request sent to /commons/ip-location.
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Analysis
by VulDB Data Team • 08/26/2025
The vulnerability identified as CVE-2024-46412 represents a critical access control flaw within the Rebuild v3.7.7 web application framework. This issue resides in the prehandle function where improper authentication checks fail to validate user credentials before granting access to sensitive resources. The vulnerability specifically affects the /commons/ip-location endpoint which serves location-based IP address data, making it a prime target for attackers seeking unauthorized access to geolocation information. The flaw stems from insufficient input validation and authentication verification mechanisms that allow malicious actors to craft specially formatted GET requests bypassing normal security protocols. This misconfiguration creates a pathway for unauthorized users to access restricted functionality without proper authentication credentials, fundamentally undermining the application's security model.
The technical implementation of this vulnerability demonstrates a classic access control bypass scenario where the prehandle function fails to properly authenticate requests before processing them. Attackers can exploit this weakness by sending crafted GET requests to the /commons/ip-location endpoint, effectively circumventing the authentication layer that should normally verify user privileges. This flaw operates at the application logic level, where the security controls are implemented incorrectly, allowing unauthorized access to sensitive data. The vulnerability's impact is amplified because IP location data often contains sensitive information about user locations, network infrastructure, or geographic patterns that could be leveraged for further attacks or reconnaissance activities. The attack vector is particularly concerning as it requires minimal sophistication to execute, making it accessible to attackers with basic web exploitation knowledge.
From an operational perspective, this vulnerability creates significant risk exposure for organizations utilizing Rebuild v3.7.7 applications, particularly those handling sensitive data or operating in regulated environments. The unauthorized access to IP location information could enable attackers to map network infrastructure, identify user locations, or gather intelligence for more sophisticated attacks. The vulnerability may also serve as a stepping stone for privilege escalation attacks, where attackers use the initial unauthorized access to gain deeper system access. Security compliance frameworks such as pci dss and gdpr are directly impacted by this flaw, as unauthorized access to location data constitutes a breach of data protection requirements. Organizations may face regulatory penalties, audit failures, and reputational damage when such vulnerabilities are exploited in production environments.
Mitigation strategies for CVE-2024-46412 should prioritize immediate patching of the Rebuild framework to version 3.7.8 or later where the access control flaw has been addressed. Network administrators should implement additional security controls including web application firewalls that can detect and block malformed GET requests targeting the vulnerable endpoint. Access logging should be enhanced to monitor for suspicious patterns in requests to /commons/ip-location, enabling rapid detection of exploitation attempts. The implementation of proper authentication checks within the prehandle function should be verified through security code reviews and penetration testing. Organizations should also consider implementing rate limiting and request validation mechanisms to prevent automated exploitation attempts. This vulnerability aligns with CWE-285 which addresses improper authorization in access control systems, and maps to ATT&CK technique T1078 for valid accounts usage and T1566 for credential harvesting through social engineering or exploitation of weak authentication mechanisms. Regular security assessments and vulnerability scanning should be conducted to identify similar access control flaws in other application components, ensuring comprehensive protection against unauthorized access scenarios.