CVE-2022-46140 in SCALANCE
Summary
by MITRE • 12/13/2022
Affected devices use a weak encryption scheme to encrypt the debug zip file. This could allow an authenticated attacker to decrypt the contents of the file and retrieve debug information about the system.
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Analysis
by VulDB Data Team • 01/14/2025
The vulnerability identified as CVE-2022-46140 represents a critical weakness in cryptographic implementation within affected network devices that handle debug information. This issue stems from the use of insufficient encryption algorithms when generating debug zip files, creating a pathway for authenticated attackers to potentially access sensitive system information. The weakness manifests specifically in how the device encrypts debug data before storage or transmission, leaving the encrypted contents vulnerable to decryption attempts by adversaries who have already established authentication credentials. This vulnerability directly impacts the confidentiality of system diagnostic information that should remain protected from unauthorized access.
The technical flaw resides in the implementation of encryption protocols specifically designed for debug file protection, where the chosen cryptographic methods demonstrate inadequate security strength. When devices generate debug zip files containing system information, the encryption scheme employed uses weak cryptographic primitives that can be broken through various means including brute force attacks, cryptographic analysis, or by leveraging known vulnerabilities in the implementation. The weakness likely involves the use of deprecated cipher modes, insufficient key lengths, or improper implementation of cryptographic functions that fail to meet contemporary security standards. This cryptographic weakness creates a direct attack surface that allows authenticated threat actors to reverse engineer the encryption and access the contained debug information.
The operational impact of this vulnerability extends beyond simple information disclosure, as debug information typically contains sensitive system configurations, operational parameters, network topology details, and potentially system vulnerabilities that could be exploited by attackers. An authenticated attacker who successfully decrypts these debug files gains valuable intelligence about the target system's architecture, operational behavior, and potential security weaknesses. This intelligence can be leveraged for further attacks including privilege escalation, lateral movement within networks, or targeting other system components that may share similar cryptographic weaknesses. The vulnerability essentially provides attackers with a roadmap for more sophisticated attacks while potentially exposing system internals that should remain confidential.
Security practitioners should address this vulnerability through immediate implementation of stronger encryption standards for debug file generation, ensuring that cryptographic implementations meet current industry requirements and avoid known weak algorithms. The mitigation strategy should include updating encryption protocols to use robust cipher suites with sufficient key lengths, implementing proper key management practices, and potentially disabling debug file generation or restricting access to such functionality. Organizations should also consider implementing network monitoring to detect unauthorized access attempts to debug file systems and establish regular cryptographic assessments to identify similar weaknesses in other system components. This vulnerability aligns with CWE-327, which addresses the use of weak cryptographic algorithms, and represents a significant concern under the ATT&CK framework's privilege escalation and reconnaissance tactics where attackers seek to gather system information for more targeted attacks.