CVE-2025-41337 in CanalDenuncia.app
Summary
by MITRE • 11/04/2025
A lack of authorisation vulnerability has been detected in CanalDenuncia.app. This vulnerability allows an attacker to access other users' information by sending a POST through the parameter 'web' in '/backend/api/buscarSSOParametros.php'.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 11/04/2025
The vulnerability identified as CVE-2025-41337 represents a critical authorization flaw within the CanalDenuncia.app application that undermines the fundamental security principles of access control. This weakness manifests in the form of an insufficient authorization check that permits unauthorized users to gain access to sensitive user data through a specifically crafted POST request. The vulnerability is particularly concerning as it directly impacts the confidentiality and integrity of user information stored within the system, creating potential pathways for data breaches and unauthorized data access.
The technical implementation of this vulnerability occurs through the manipulation of the 'web' parameter within the '/backend/api/buscarSSOParametros.php' endpoint. This endpoint appears to lack proper authentication verification mechanisms that should validate user credentials and authorization levels before processing requests. When an attacker sends a POST request containing malicious data in the 'web' parameter, the application fails to enforce proper authorization checks, allowing the request to proceed without verifying whether the requesting user has legitimate access rights to the targeted resources. This flaw aligns with CWE-285, which categorizes insufficient authorization as a common weakness in access control systems, and demonstrates how improper validation can lead to privilege escalation and unauthorized data exposure.
The operational impact of this vulnerability extends beyond simple data theft, as it potentially enables attackers to perform lateral movement within the application's user base and access sensitive information belonging to other users. This unauthorized access capability could result in significant consequences including identity theft, privacy violations, and potential regulatory compliance issues depending on the nature of the data being accessed. The vulnerability's exploitation requires minimal technical skill, making it particularly dangerous as it could be leveraged by attackers with basic knowledge of web application exploitation techniques. The ATT&CK framework categorizes this type of vulnerability under privilege escalation and credential access tactics, where adversaries can leverage weak authorization controls to obtain access to resources they should not be permitted to access.
Mitigation strategies for CVE-2025-41337 should prioritize immediate implementation of robust authorization controls at the application level. The primary remediation involves enforcing proper authentication and authorization checks within the '/backend/api/buscarSSOParametros.php' endpoint before processing any requests containing the 'web' parameter. This includes implementing session validation, user role verification, and access control lists that ensure only authorized users can access specific resources. Additionally, the application should implement input validation and sanitization to prevent parameter manipulation attacks while maintaining comprehensive audit logging to detect and respond to unauthorized access attempts. Organizations should also consider implementing rate limiting and monitoring mechanisms to identify suspicious patterns of access that may indicate exploitation attempts. The remediation process should follow established security development lifecycle practices to ensure that similar authorization flaws are prevented in future application development phases.