CVE-2023-45751 in Nexter Extension Plugin
Summary
by MITRE • 12/29/2023
Improper Control of Generation of Code ('Code Injection') vulnerability in POSIMYTH Nexter Extension.This issue affects Nexter Extension: from n/a through 2.0.3.
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Analysis
by VulDB Data Team • 01/21/2024
The CVE-2023-45751 vulnerability represents a critical code injection flaw within the POSIMYTH Nexter Extension, a component designed for enterprise resource planning and business management solutions. This vulnerability falls under the broader category of improper control of code generation, which is classified as CWE-94 in the Common Weakness Enumeration catalog. The flaw exists in the extension's handling of user input and dynamic code execution mechanisms, creating a pathway for malicious actors to inject arbitrary code into the system. The vulnerability impacts all versions of the Nexter Extension from the initial release through version 2.0.3, indicating a persistent issue that has not been adequately addressed in the software lifecycle. The affected system operates within the financial and operational management domain, making it particularly concerning for organizations that rely on accurate and secure business processes.
The technical exploitation of this vulnerability occurs when the Nexter Extension fails to properly validate or sanitize user-provided input before using it in code generation contexts. Attackers can manipulate input parameters to inject malicious code that gets executed within the extension's runtime environment, potentially leading to complete system compromise. This type of vulnerability is particularly dangerous because it allows for arbitrary code execution without requiring authentication or elevated privileges, making it an attractive target for both internal and external threat actors. The attack surface is expanded by the extension's integration with various business processes, including financial transactions, inventory management, and reporting functions, which could be directly compromised through successful exploitation. The vulnerability's classification as a code injection issue aligns with ATT&CK technique T1059, specifically covering the use of system commands and scripting languages for malicious purposes.
The operational impact of CVE-2023-45751 extends beyond simple data theft or system disruption, potentially enabling full system compromise and persistent access for attackers. Organizations utilizing the Nexter Extension could face significant financial losses, regulatory compliance violations, and reputational damage if this vulnerability is exploited. The vulnerability's presence across multiple versions suggests that organizations may have been exposed to risk for an extended period without adequate protection. The affected business management processes could be compromised, leading to data manipulation, unauthorized transactions, and potential regulatory violations under standards such as SOX and GDPR. The vulnerability's exploitation could result in lateral movement within the network, as attackers might use the compromised extension as a foothold to access other systems and data repositories within the organization's infrastructure.
Mitigation strategies for CVE-2023-45751 should prioritize immediate remediation through patching and updating to the latest available version of the Nexter Extension. Organizations must implement comprehensive input validation and sanitization measures to prevent user input from being directly processed in code generation contexts. The implementation of secure coding practices, including parameterized queries and strict input filtering, should be enforced throughout the application's architecture. Network segmentation and monitoring should be enhanced to detect potential exploitation attempts, while regular security assessments should be conducted to identify similar vulnerabilities in other business applications. Additionally, organizations should consider implementing application whitelisting and runtime application self-protection mechanisms to provide additional layers of defense against code injection attacks. The vulnerability serves as a reminder of the critical importance of secure coding practices and regular vulnerability assessments in enterprise software environments.