CVE-2024-0988 in KuERP
Summary
by MITRE • 01/29/2024
A vulnerability classified as critical was found in Sichuan Yougou Technology KuERP up to 1.0.4. Affected by this vulnerability is the function checklogin of the file /application/index/common.php. The manipulation of the argument App_User_id/App_user_Token leads to improper authentication. The exploit has been disclosed to the public and may be used. The identifier VDB-252253 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 02/21/2024
This critical vulnerability in Sichuan Yougou Technology KuERP version 1.0.4 represents a severe authentication bypass flaw that undermines the system's core security controls. The vulnerability resides in the checklogin function within the /application/index/common.php file, where improper handling of the App_User_id and App_user_Token parameters creates a pathway for unauthorized access. The flaw allows attackers to manipulate these authentication tokens without proper validation, effectively circumventing the application's user authentication mechanism. This type of vulnerability directly maps to CWE-287 Improper Authentication, which is classified as a critical weakness in the Common Weakness Enumeration catalog, as it enables attackers to gain unauthorized access to protected resources by exploiting inadequate authentication controls. The public disclosure of this exploit through VDB-252253 indicates that threat actors have already developed working methods to leverage this weakness, significantly increasing the risk to affected systems.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it creates potential for privilege escalation and data compromise within the KuERP system. Attackers who successfully exploit this flaw can potentially access sensitive business data, user information, and administrative functions that should be restricted to authorized personnel only. The vulnerability's classification as critical in the CVSS scoring system reflects its severe implications for system integrity and confidentiality, particularly given that the application appears to be a business management system that likely contains proprietary information, financial data, and operational details. Organizations using this version of KuERP face substantial risk of data breaches, regulatory compliance violations, and potential financial losses. The lack of vendor response to early disclosure attempts compounds the issue, leaving users without official patches or mitigation guidance during an active threat period.
From a cybersecurity perspective, this vulnerability aligns with ATT&CK technique T1078 Valid Accounts, as it allows adversaries to operate using legitimate authentication tokens without proper verification. The exploitability of this flaw means that attackers can potentially maintain persistent access to the system by manipulating authentication parameters, creating opportunities for long-term reconnaissance and data exfiltration. Organizations should implement immediate defensive measures including network segmentation, monitoring for anomalous authentication patterns, and credential rotation for affected accounts. The vulnerability demonstrates poor input validation and authentication handling practices that should be addressed through proper code review processes and security testing. System administrators should also consider implementing additional layers of security such as multi-factor authentication, intrusion detection systems, and regular security audits to protect against exploitation attempts. The absence of vendor response creates an urgent need for community-driven mitigation strategies and potentially temporary workarounds until a patched version becomes available. This vulnerability serves as a reminder of the critical importance of timely vulnerability disclosure and vendor accountability in maintaining overall cybersecurity posture across enterprise applications.