CVE-2022-4048 in Development System
Summary
by MITRE • 05/15/2023
Inadequate Encryption Strength in CODESYS Development System V3 versions prior to V3.5.18.40 allows an unauthenticated local attacker to access and manipulate code of the encrypted boot application.
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Analysis
by VulDB Data Team • 05/15/2023
The vulnerability identified as CVE-2022-4048 represents a significant security weakness in the CODESYS Development System V3 software ecosystem where inadequate encryption strength compromises the integrity and confidentiality of encrypted boot applications. This flaw affects versions prior to V3.5.18.40 and creates a pathway for unauthenticated local attackers to gain unauthorized access to sensitive code components that should remain protected through proper cryptographic mechanisms. The vulnerability stems from insufficient cryptographic algorithms or implementation practices that fail to meet contemporary security standards for protecting sensitive data within industrial automation environments.
The technical flaw manifests through weak encryption algorithms or improper implementation of cryptographic functions that protect the boot application code within the CODESYS development environment. When applications are encrypted using substandard cryptographic methods, attackers can potentially reverse engineer or decrypt the protected code without proper authorization. This weakness specifically impacts the boot application encryption process where the system fails to maintain adequate key lengths, algorithm strength, or proper implementation of cryptographic protocols. The vulnerability creates a direct attack surface that allows local adversaries to manipulate code components that should remain secure and protected from unauthorized access.
From an operational perspective, this vulnerability poses substantial risks to industrial control systems and automation environments that rely on CODESYS for their operational technology infrastructure. The ability to access and manipulate encrypted boot applications directly impacts system integrity and can potentially lead to unauthorized modifications of critical control logic. Attackers could exploit this weakness to inject malicious code, alter system behavior, or gain elevated privileges within the industrial environment. The local nature of the attack means that physical or network access to the system is sufficient to exploit the vulnerability, making it particularly concerning for environments where physical security controls may be insufficient.
The security implications extend beyond simple code access to encompass potential compromise of entire industrial control systems. This vulnerability aligns with CWE-327 which addresses broken or weak cryptographic algorithms and relates to the broader category of inadequate encryption strength issues. The attack vector connects to ATT&CK technique T1547.001 which covers registry run keys and startup folder, as attackers might leverage compromised boot applications to establish persistence within the system. Organizations utilizing CODESYS development systems should prioritize immediate remediation through the installation of V3.5.18.40 or later versions that address the cryptographic weakness. Additionally, implementing network segmentation, access controls, and regular security assessments can help mitigate potential exploitation of this vulnerability in environments where immediate patching may not be feasible.
The vulnerability demonstrates the critical importance of maintaining up-to-date cryptographic implementations in industrial automation systems where security failures can have cascading effects on operational technology infrastructure. Proper encryption strength is essential for protecting the integrity of control systems and preventing unauthorized modifications that could lead to operational disruptions or safety hazards. Organizations should conduct comprehensive assessments of their CODESYS implementations to identify systems vulnerable to this weakness and implement appropriate security controls while planning for the necessary software updates to address the underlying cryptographic deficiencies.