CVE-2024-27630 in Savane
Summary
by MITRE • 04/09/2024
Insecure Direct Object Reference (IDOR) in GNU Savane v.3.12 and before allows a remote attacker to delete arbitrary files via crafted input to the trackers_data_delete_file function.
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Analysis
by VulDB Data Team • 08/17/2024
The vulnerability identified as CVE-2024-27630 represents a critical Insecure Direct Object Reference flaw within GNU Savane version 3.12 and earlier releases. This security weakness manifests in the trackers_data_delete_file function, which fails to properly validate or sanitize user-supplied input before processing file deletion requests. The issue enables remote attackers to manipulate the application's file handling mechanisms through crafted malicious input, potentially leading to unauthorized file deletion across the system. This type of vulnerability falls under CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal attacks. The vulnerability's presence in a web application framework like GNU Savane creates significant operational risks as it undermines the integrity of the application's file management system.
The technical exploitation of this IDOR vulnerability occurs when an attacker crafts malicious input parameters that directly reference file paths within the application's storage structure. The trackers_data_delete_file function lacks proper access controls and input validation mechanisms, allowing attackers to bypass normal authorization checks and directly reference arbitrary files for deletion. This flaw essentially permits attackers to manipulate the application's internal file reference mechanisms, potentially enabling them to delete critical system files, user data, or application components. The vulnerability's remote nature means that attackers do not require local system access or authentication credentials to exploit the flaw, making it particularly dangerous in publicly accessible environments. The attack vector demonstrates characteristics consistent with ATT&CK technique T1078.004, which involves legitimate accounts used to perform unauthorized actions.
The operational impact of this vulnerability extends beyond simple file deletion capabilities, as it represents a fundamental breakdown in the application's security model and access control mechanisms. An attacker who successfully exploits this vulnerability could potentially cause significant disruption to the GNU Savane instance by removing critical files, corrupting data, or even executing a denial of service condition. The consequences may include complete system compromise, data loss, and unauthorized access to sensitive information stored within the application's file system. Organizations relying on GNU Savane for project management or collaboration may face serious security implications, particularly in environments where the application handles sensitive project data or user information. The vulnerability's classification as an IDOR issue indicates that the application fails to properly enforce object-level access controls, allowing attackers to reference objects they should not have access to, which aligns with ATT&CK technique T1213.002 related to data from information repositories.
Mitigation strategies for CVE-2024-27630 must focus on implementing robust input validation and access control mechanisms within the trackers_data_delete_file function. The most effective approach involves enforcing proper authentication checks and authorization controls before any file deletion operations are permitted. Organizations should implement proper parameter validation to ensure that all file references are properly sanitized and validated against a whitelist of allowed paths. Additionally, the application should enforce strict access controls that verify user permissions before allowing file operations to proceed. The implementation of proper logging and monitoring mechanisms can help detect unauthorized file deletion attempts and provide forensic evidence for incident response. Security patches should be applied immediately to upgrade to GNU Savane versions that address this vulnerability, as the flaw represents a critical security risk that could lead to complete system compromise. The remediation process should also include comprehensive security testing to ensure that similar vulnerabilities do not exist in other parts of the application's file handling mechanisms.