CVE-2020-7510 in Easergy T300
Summary
by MITRE
A CWE-200: Information Exposure vulnerability exists in Easergy T300 (Firmware version 1.5.2 and older) which could allow attacker to obtain private keys.
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Analysis
by VulDB Data Team • 06/17/2020
The CVE-2020-7510 vulnerability represents a critical information exposure flaw within Easergy T300 industrial control systems running firmware versions 1.5.2 and earlier. This vulnerability falls under CWE-200, which specifically addresses information exposure through improper access control mechanisms. The Easergy T300 is a power quality and energy management device commonly deployed in industrial environments for monitoring and controlling electrical systems. The vulnerability stems from inadequate protection of cryptographic materials within the device's firmware, creating an avenue for unauthorized access to sensitive private keys that are essential for secure communications and authentication processes.
The technical implementation of this vulnerability allows an attacker to extract private keys through direct file system access or by exploiting weaknesses in the device's authentication mechanisms. These private keys are typically stored in unencrypted formats or protected by weak cryptographic methods that can be bypassed through standard exploitation techniques. The vulnerability is particularly concerning because it affects the fundamental security infrastructure of the device, potentially enabling attackers to impersonate legitimate system components, decrypt sensitive communications, or establish persistent access within industrial networks. The exposure of private keys compromises the entire security model of the device and can lead to cascading effects throughout connected systems.
The operational impact of this vulnerability extends beyond simple information disclosure, as private key exposure can result in complete compromise of the device's security posture. Attackers can leverage these keys to perform man-in-the-middle attacks, modify device configurations, or gain unauthorized access to industrial control systems that rely on the device for monitoring and control functions. The vulnerability affects industrial environments where security is paramount, including power generation facilities, manufacturing plants, and critical infrastructure installations. Organizations using affected Easergy T300 devices face significant risks of operational disruption, data compromise, and potential safety hazards if attackers exploit this vulnerability to manipulate power quality monitoring systems.
Mitigation strategies for CVE-2020-7510 should prioritize immediate firmware updates to versions that address the information exposure vulnerability and implement proper key management practices. Organizations must conduct comprehensive inventory assessments to identify all affected devices and ensure proper access controls are in place to prevent unauthorized physical or network access. The implementation of network segmentation and monitoring solutions can help detect potential exploitation attempts. Additionally, organizations should review their key management processes to ensure cryptographic materials are properly protected and regularly rotated. This vulnerability aligns with ATT&CK technique T1552.001 for unsecured credentials and T1071.004 for application layer protocols, emphasizing the need for layered security approaches to protect industrial control systems from information exposure attacks.