CVE-2022-41127 in Dynamics NAV
Summary
by MITRE • 12/13/2022
Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central (On Premises) Remote Code Execution Vulnerability.
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Analysis
by VulDB Data Team • 01/08/2023
This vulnerability affects Microsoft Dynamics NAV and Microsoft Dynamics 365 Business Central deployments running on-premises, representing a critical remote code execution flaw that could allow attackers to execute arbitrary code on affected systems. The vulnerability stems from improper input validation within the application's handling of certain data processing operations, creating an avenue for malicious actors to exploit the system through remote network access. According to the Common Weakness Enumeration framework, this vulnerability maps to CWE-121 Stack-based Buffer Overflow, indicating that the flaw involves a buffer overflow condition that can be triggered through stack memory manipulation. The attack surface is particularly concerning given that these enterprise resource planning applications typically operate within corporate networks and often contain sensitive business data, making them attractive targets for cyber adversaries seeking persistent access to organizational infrastructure.
The technical implementation of this vulnerability allows an unauthenticated attacker to send specially crafted requests to the affected application's web services or API endpoints, which then processes the malicious input without adequate validation. When the application attempts to handle the malformed data, it overflows allocated memory buffers, potentially allowing an attacker to overwrite critical memory locations and redirect execution flow to malicious code. This type of vulnerability falls under the ATT&CK technique T1203, known as "Exploitation for Client Execution," where adversaries leverage application vulnerabilities to execute code on target systems. The exploitation requires no prior authentication credentials, making it particularly dangerous as it can be initiated from any external network location, potentially bypassing traditional network perimeter defenses and moving laterally within the organization's infrastructure.
The operational impact of this vulnerability extends beyond immediate code execution capabilities, as successful exploitation can lead to complete system compromise, data exfiltration, and potential disruption of business operations. Organizations running these applications may face significant financial losses due to potential data breaches, regulatory fines, and business interruption costs. The vulnerability affects deployments where the applications are accessible over the internet or through exposed network services, which is common in many enterprise environments where remote access capabilities are required for business continuity. The attack vector specifically targets the application layer rather than network infrastructure, making it more difficult to detect through traditional network monitoring tools and requiring application-level security controls to provide adequate protection. Organizations may also experience reputational damage and compliance violations if sensitive customer or financial data is compromised through exploitation of this vulnerability.
Mitigation strategies should focus on immediate patch management implementation through Microsoft's security updates, which address the underlying buffer overflow conditions in the application's processing logic. Network segmentation should be implemented to limit access to these applications to only authorized personnel and systems, reducing the attack surface available to potential adversaries. Organizations should also deploy web application firewalls and intrusion detection systems specifically configured to monitor for patterns associated with exploitation attempts targeting these applications. Regular security assessments and vulnerability scanning should be conducted to identify any remaining exposed instances of the vulnerable software, while privileged access controls should be strictly enforced to minimize potential damage from successful exploitation attempts. Additionally, implementing application whitelisting policies and monitoring for unusual network traffic patterns can provide additional layers of defense against this type of remote code execution vulnerability.