CVE-2022-41157 is a vulnerability identified in Webcash Co.,Ltd's sERP Server 2.0, an ERP solution known as Kyungrinara. The vulnerability arises from the use of hard-coded credentials within a specific file on the sERP server that operates with SYSTEM-level authority. Hard-coded credentials are embedded static passwords or keys within software code or configuration files, which cannot be changed by end users. This flaw allows an attacker who can access this file or the server to leverage these fixed credentials to gain elevated privileges. With SYSTEM authority, an attacker could potentially execute arbitrary commands, access or exfiltrate sensitive business data, and manipulate system configurations. The vulnerability is classified under CWE-798, indicating improper use of hard-coded credentials. Although the affected versions are unspecified, the presence of such credentials in a critical ERP system poses a significant risk. No public exploits have been reported yet, and no patches have been linked, indicating that the vulnerability might still be unmitigated in many deployments. The vulnerability was published on November 25, 2022, and has been enriched by CISA and KRCERT, highlighting its recognition by cybersecurity authorities. The lack of a CVSS score necessitates an independent severity assessment based on the potential impact and exploitability. Given that the vulnerability allows SYSTEM-level access without requiring user interaction or authentication beyond access to the vulnerable file, it represents a serious threat to confidentiality, integrity, and availability of affected systems.

For European organizations using Webcash Co.,Ltd's sERP Server 2.0, this vulnerability could lead to severe operational and data security risks. ERP systems typically manage critical business processes including finance, supply chain, human resources, and customer data. Exploitation could result in unauthorized disclosure of sensitive corporate information, financial data manipulation, disruption of business operations, and potential compliance violations under GDPR due to data breaches. The SYSTEM-level access granted by the hard-coded credentials means attackers could deploy malware, create persistent backdoors, or disrupt services, leading to downtime and reputational damage. Given the central role of ERP systems, such an attack could cascade into broader IT infrastructure compromise. Additionally, the lack of patches and public exploits suggests that organizations may be unaware or unprepared, increasing the risk of undetected exploitation. The medium severity rating by the vendor may underestimate the real-world impact, especially in environments where the sERP server is exposed or insufficiently segmented.

Organizations should immediately conduct an inventory to identify any deployments of Webcash sERP Server 2.0. Since no official patches are currently available, mitigations should focus on reducing exposure and limiting access. This includes isolating the sERP server within a secure network segment with strict access controls, employing network-level restrictions such as firewalls and VPNs to limit administrative access, and monitoring for unusual activity related to the sERP server. Administrators should search for and remove or change any hard-coded credentials if possible, or replace the affected component with a version that does not contain hard-coded passwords. Implementing application-layer access controls and multi-factor authentication around the ERP system can reduce the risk of unauthorized access. Regularly auditing logs and employing endpoint detection and response (EDR) tools can help detect exploitation attempts. Organizations should also engage with Webcash Co.,Ltd to obtain updates or patches and plan for timely application once available. Finally, educating IT staff about the risks of hard-coded credentials and enforcing secure coding practices in customizations or integrations with the ERP system will help prevent similar issues.