CVE-2015-8108 in LenovoEMC EZ Media
Summary
by MITRE
The management interface in LenovoEMC EZ Media & Backup (hm3), ix2/ix2-dl, ix4-300d, px12-400r/450r, px6-300d, px2-300d, px4-300r, px4-400d, px4-400r, and px4-300d NAS devices with firmware before 4.1.204.33661 allows remote attackers to obtain sensitive device information via unspecified vectors.
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Analysis
by VulDB Data Team • 07/13/2022
The vulnerability identified as CVE-2015-8108 affects LenovoEMC EZ Media & Backup series network attached storage devices including various models such as hm3, ix2, ix2-dl, ix4-300d, px12-400r/450r, px6-300d, px2-300d, px4-300r, px4-400d, px4-400r, and px4-300d. These devices operate with firmware versions prior to 4.1.204.33661, creating a security gap that exposes sensitive information through their management interfaces. The flaw represents a critical weakness in the device's access control mechanisms, allowing unauthorized remote actors to gain access to confidential system details that should remain protected within the organization's network infrastructure.
This vulnerability stems from insufficient input validation and access control measures within the management interface components of these NAS devices. The unspecified vectors mentioned in the description indicate that attackers can exploit multiple pathways to access sensitive device information without proper authentication or authorization. The affected devices typically expose management interfaces through standard network protocols such as http or https, making them accessible over the internet or local networks. The lack of proper authentication checks and input sanitization creates opportunities for attackers to manipulate interface requests and extract system configuration details, user credentials, network settings, and other confidential information that could aid in further exploitation attempts.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed device information provides attackers with valuable intelligence for planning more sophisticated attacks. The sensitive data potentially accessible through this vulnerability includes system configuration parameters, firmware versions, network settings, user accounts, and device identification information that could be leveraged for privilege escalation or lateral movement within the network. According to CWE classification, this vulnerability maps to CWE-200 Information Exposure, which encompasses various scenarios where sensitive information is unintentionally disclosed to unauthorized actors. The attack surface is particularly concerning given that these NAS devices are commonly deployed in enterprise environments where they store critical business data and serve as network infrastructure components.
From a cybersecurity perspective, this vulnerability aligns with several ATT&CK framework techniques including T1083 Discovery and T1069 Permission Groups, as attackers can use the exposed information to map network structures and identify potential access points for further compromise. The remote nature of the attack vector means that adversaries can exploit this weakness from anywhere on the internet, making it particularly dangerous for organizations that do not properly segment their network infrastructure. Organizations running these vulnerable devices face significant risk of unauthorized access to their data storage systems, potentially leading to data breaches, system compromise, and disruption of business operations.
The recommended mitigation strategy involves immediate firmware upgrades to version 4.1.204.33661 or later, which contains the necessary security patches to address the information disclosure vulnerability. Network administrators should also implement additional security controls such as firewall rules to restrict access to management interfaces, ensure that only authorized network segments can reach these devices, and consider implementing network segmentation to limit the potential impact of any successful exploitation. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other network infrastructure components, as this vulnerability demonstrates the importance of maintaining current firmware versions and implementing proper access controls for all network devices. The incident also underscores the need for comprehensive security monitoring and incident response procedures to quickly detect and respond to exploitation attempts targeting network infrastructure devices.