CVE-2023-45658 in Nexter Plugin
Summary
by MITRE • 06/19/2024
Missing Authorization vulnerability in POSIMYTH Nexter.This issue affects Nexter: from n/a through 2.0.3.
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Analysis
by VulDB Data Team • 06/20/2024
The CVE-2023-45658 vulnerability represents a critical missing authorization flaw within the POSIMYTH Nexter system, specifically impacting versions ranging from unspecified initial release through 2.0.3. This type of vulnerability falls under the broader category of inadequate access control mechanisms that allow unauthorized users to perform actions they should not be permitted to execute. The vulnerability stems from insufficient validation of user permissions and authentication status during critical operations within the system's application programming interface and administrative interfaces. From a cybersecurity perspective, this represents a fundamental breakdown in the principle of least privilege, where users may gain access to restricted functionalities without proper authorization checks. The issue manifests when the system fails to adequately verify whether an authenticated user possesses the necessary privileges to access specific resources or execute particular commands within the Nexter platform.
The technical implementation of this vulnerability allows attackers to exploit the absence of proper authorization controls by crafting malicious requests or leveraging existing authenticated sessions to access protected system components. This flaw typically occurs when the application does not consistently enforce access control policies across all endpoints, particularly in administrative and configuration interfaces where sensitive operations are performed. The vulnerability may be exploited through various vectors including direct API calls, web interface manipulation, or by leveraging session tokens from compromised authenticated users. Attackers can potentially escalate privileges, access confidential data, modify system configurations, or perform administrative actions that should be restricted to authorized personnel only. This type of authorization bypass vulnerability is particularly dangerous as it can enable attackers to gain persistent access to critical system functions without requiring additional credentials or complex exploitation techniques.
The operational impact of this vulnerability extends beyond simple unauthorized access, potentially leading to complete system compromise and data breaches within organizations using affected versions of POSIMYTH Nexter. Organizations relying on this system may face unauthorized modifications to critical business processes, exposure of sensitive customer data, disruption of normal business operations, and potential regulatory compliance violations. The vulnerability creates a persistent risk that remains active as long as affected versions are deployed, making it particularly concerning for organizations with limited patch management capabilities or those operating in highly regulated environments. From an attack surface perspective, this vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and T1548 which addresses abuse of privileges, demonstrating how unauthorized access can be leveraged to establish persistent presence within target environments. The impact is amplified when considering that the vulnerability affects the core authorization mechanisms of the system, potentially allowing attackers to bypass multiple layers of security controls that should normally protect sensitive functions.
Mitigation strategies for CVE-2023-45658 should prioritize immediate remediation through the deployment of vendor-provided patches or updates addressing the authorization bypass issue. Organizations should implement comprehensive access control reviews to identify and remediate similar authorization gaps within their broader IT infrastructure. Security teams should conduct thorough penetration testing and authorization audits to ensure that all system components properly enforce access controls and that no additional vulnerabilities exist within the authorization framework. Network segmentation and monitoring controls should be enhanced to detect unauthorized access attempts and suspicious activities within affected systems. The vulnerability aligns with CWE-285 which specifically addresses insufficient authorization controls and demonstrates the critical importance of implementing proper access control mechanisms throughout application development lifecycle. Organizations should also consider implementing additional security controls such as role-based access control enforcement, regular authorization audits, and continuous monitoring of privileged access activities to prevent exploitation of similar authorization vulnerabilities.