CVE-2024-2371 in JetIO 6550
Summary
by MITRE • 03/12/2024
Information exposure vulnerability in Korenix JetI/O 6550 affecting firmware version F208 Build:0817. The SNMP protocol uses plaintext to transfer data, allowing an attacker to intercept traffic and retrieve credentials.
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Analysis
by VulDB Data Team • 03/12/2024
The CVE-2024-2371 vulnerability represents a critical information exposure flaw in Korenix JetI/O 6550 network devices running firmware version F208 Build:0817. This vulnerability specifically targets the Simple Network Management Protocol implementation within the device, creating a significant security risk for industrial control systems and network infrastructure deployments. The vulnerability stems from the device's improper handling of authentication credentials during SNMP communication, exposing sensitive information to unauthorized parties who can intercept network traffic.
The technical flaw manifests through the use of plaintext transmission for SNMP data transfer, which directly violates fundamental security principles for network communication protocols. This design decision creates a clear pathway for man-in-the-middle attacks where adversaries can capture network packets containing authentication information. The vulnerability falls under CWE-312, which specifically addresses the exposure of sensitive information through cleartext transmission, and aligns with ATT&CK technique T1071.004 for application layer protocol usage. The plaintext nature of SNMP communication in this device allows attackers to easily extract username and password credentials from intercepted packets without requiring sophisticated cryptographic attacks or extensive computational resources.
The operational impact of this vulnerability extends beyond simple credential theft, potentially compromising entire industrial control systems and network infrastructures. Attackers who successfully exploit this vulnerability can gain unauthorized access to network management functions, potentially leading to service disruption, data manipulation, or unauthorized configuration changes. The vulnerability affects devices deployed in critical infrastructure environments where the JetI/O 6550 serves as a network gateway or management interface. Organizations relying on these devices for industrial automation, telecommunications, or network monitoring operations face significant risk of operational disruption and potential security breaches. The exposure of SNMP credentials could enable attackers to perform reconnaissance activities, escalate privileges, or establish persistent access to network management systems.
Mitigation strategies for CVE-2024-2371 should prioritize immediate firmware updates from Korenix to address the plaintext transmission issue. Organizations must implement network segmentation and access controls to limit exposure of affected devices to untrusted networks. Network traffic monitoring and intrusion detection systems should be configured to detect anomalous SNMP traffic patterns that may indicate credential interception attempts. Security teams should conduct comprehensive network assessments to identify all instances of the vulnerable firmware version and ensure proper patch management procedures are in place. The implementation of SNMPv3 or alternative secure communication protocols should be considered for environments where plaintext SNMP is not strictly required. Additionally, organizations should establish monitoring procedures for unauthorized access attempts and credential usage patterns to detect potential exploitation of this vulnerability.