CVE-2024-41978 in RUGGEDCOM RM1224 LTE(4G) EU
Summary
by MITRE • 08/13/2024
A vulnerability has been identified in RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) (All versions < V8.1), RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2) (All versions < V8.1), SCALANCE M804PB (6GK5804-0AP00-2AA2) (All versions < V8.1), SCALANCE M812-1 ADSL-Router family (All versions < V8.1), SCALANCE M816-1 ADSL-Router family (All versions < V8.1), SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2) (All versions < V8.1), SCALANCE M874-2 (6GK5874-2AA00-2AA2) (All versions < V8.1), SCALANCE M874-3 (6GK5874-3AA00-2AA2) (All versions < V8.1), SCALANCE M874-3 3G-Router (CN) (6GK5874-3AA00-2FA2) (All versions < V8.1), SCALANCE M876-3 (6GK5876-3AA02-2BA2) (All versions < V8.1), SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2) (All versions < V8.1), SCALANCE M876-4 (6GK5876-4AA10-2BA2) (All versions < V8.1), SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2) (All versions < V8.1), SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2) (All versions < V8.1), SCALANCE MUM853-1 (A1) (6GK5853-2EA10-2AA1) (All versions < V8.1), SCALANCE MUM853-1 (B1) (6GK5853-2EA10-2BA1) (All versions < V8.1), SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1) (All versions < V8.1), SCALANCE MUM856-1 (A1) (6GK5856-2EA10-3AA1) (All versions < V8.1), SCALANCE MUM856-1 (B1) (6GK5856-2EA10-3BA1) (All versions < V8.1), SCALANCE MUM856-1 (CN) (6GK5856-2EA00-3FA1) (All versions < V8.1), SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1) (All versions < V8.1), SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1) (All versions < V8.1), SCALANCE S615 EEC LAN-Router (6GK5615-0AA01-2AA2) (All versions < V8.1), SCALANCE S615 LAN-Router (6GK5615-0AA00-2AA2) (All versions < V8.1). Affected devices insert sensitive information about the generation of 2FA tokens into log files. This could allow an authenticated remote attacker to forge 2FA tokens of other users.
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Analysis
by VulDB Data Team • 08/24/2024
This vulnerability affects a wide range of ruggedized networking equipment from RUGGEDCOM including LTE routers, ADSL routers, SHDSL routers, and various SCALANCE and S615 series devices. The flaw resides in how these industrial network appliances handle logging of authentication processes, specifically exposing critical information related to two-factor authentication token generation within system log files. The vulnerability impacts all affected models running software versions prior to V8.1, representing a significant security weakness in industrial control systems and network infrastructure devices that are often deployed in critical infrastructure environments.
The technical implementation of this vulnerability stems from improper handling of authentication token generation data within the device's logging mechanisms. When users authenticate to these network devices, the system generates 2FA tokens as part of the authentication process, but the device fails to properly sanitize this information before writing it to log files. This creates a situation where sensitive data about token generation algorithms, timing, and potentially token values become accessible through log file examination. The vulnerability is classified as a weakness in logging and error handling, aligning with CWE-209, which describes "Information Exposure Through an Error Message." The flaw allows for information disclosure that can be leveraged by malicious actors to reconstruct or predict token values.
The operational impact of this vulnerability is severe, particularly for industrial environments where these devices operate as critical network infrastructure components. An authenticated remote attacker who gains access to the device logs can exploit this information to forge 2FA tokens for other users, effectively bypassing the multi-factor authentication security controls that are designed to protect against unauthorized access. This creates a privilege escalation scenario where attackers can gain unauthorized access to network devices and potentially compromise entire industrial control systems. The vulnerability directly impacts the principle of least privilege and can lead to unauthorized network access, data exfiltration, and potential disruption of critical operations in environments such as manufacturing plants, power grids, and telecommunications infrastructure. The attack surface is further expanded by the widespread deployment of these devices across industrial sectors, making this vulnerability particularly dangerous for operational technology environments.
Mitigation strategies for this vulnerability require immediate software updates to version 8.1 or later where the issue has been addressed. Organizations should implement comprehensive log access controls and monitoring to detect unauthorized access to authentication-related log files. Network segmentation and access control measures should be strengthened to limit the attack surface for these devices. Additionally, security teams should conduct regular log reviews to identify any suspicious access patterns or unauthorized attempts to access sensitive information within system logs. The vulnerability also highlights the importance of secure logging practices in industrial environments, emphasizing the need for proper information sanitization before logging sensitive data. Organizations should consider implementing centralized logging solutions with strict access controls and audit trails to prevent unauthorized access to potentially sensitive information that could be extracted from log files, aligning with security best practices outlined in frameworks such as NIST SP 800-92 for audit logging and monitoring.