CVE-2024-47769 in idurar-erp-crm
Summary
by MITRE • 10/04/2024
IDURAR is open source ERP CRM accounting invoicing software. The vulnerability exists in the corePublicRouter.js file. Using the reference usage here, it is identified that the public endpoint is accessible to an unauthenticated user. The user's input is directly appended to the join statement without additional checks. This allows an attacker to send URL encoded malicious payload. The directory structure can be escaped to read system files by adding an encoded string (payload) at subpath location.
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Analysis
by VulDB Data Team • 11/14/2024
The CVE-2024-47769 vulnerability affects IDURAR, an open source ERP CRM accounting invoicing software suite that serves as a comprehensive business management platform. This particular flaw resides within the corePublicRouter.js file, which handles public-facing endpoints accessible to unauthenticated users. The vulnerability represents a critical directory traversal issue that enables attackers to access sensitive system files through manipulated URL parameters. The software's architecture fails to implement proper input validation and sanitization mechanisms, creating an exploitable pathway for malicious actors to bypass normal access controls and gain unauthorized system file access.
The technical implementation of this vulnerability stems from improper handling of user-supplied input within the application's routing logic. When users access public endpoints, their input parameters are directly incorporated into database query join statements without adequate sanitization or validation. This design flaw allows attackers to craft malicious payloads using URL encoding techniques that manipulate the directory structure traversal behavior. The vulnerability specifically manifests when an attacker appends encoded strings to the subpath parameter, enabling them to escape the intended directory boundaries and access arbitrary system files. The lack of input filtering creates a direct path for path traversal attacks, where malicious input can navigate beyond the intended file access scope.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to access sensitive system files, configuration data, and potentially sensitive business information. Attackers can leverage this vulnerability to read system files that may contain database credentials, application configuration details, or other sensitive data that could facilitate further exploitation. The unauthenticated nature of the vulnerability means that any external party can exploit this weakness without requiring valid credentials, significantly increasing the attack surface. This vulnerability could lead to complete system compromise if attackers can access critical configuration files or database connection strings that might be stored in accessible locations.
Security mitigations for CVE-2024-47769 should focus on implementing robust input validation and sanitization mechanisms throughout the application's public routing components. The most effective immediate fix involves implementing proper parameter validation that rejects or sanitizes any input containing directory traversal sequences such as ../ or ..\. Additionally, developers should implement proper access controls and file access restrictions that prevent unauthorized file system access even when input validation fails. The implementation of a whitelist-based approach for acceptable input parameters and the use of secure coding practices for database query construction can significantly reduce the risk of exploitation. Organizations should also consider implementing web application firewalls and monitoring systems to detect and block suspicious URL patterns that attempt directory traversal attacks.
This vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw also relates to ATT&CK technique T1083, which covers directory and file discovery, as attackers can use this vulnerability to enumerate system files and directories. The vulnerability represents a classic example of insecure input handling that violates fundamental security principles of input validation and access control enforcement. Organizations implementing similar software architectures should conduct comprehensive security reviews to identify and remediate similar path traversal vulnerabilities in their applications. The presence of such vulnerabilities in open source software underscores the importance of thorough security testing and proper input validation in all application components, particularly those handling public-facing user input.