CVE-2012-2284 in NetWorker Module for Microsoft Applications
Summary
by MITRE
The (1) install and (2) upgrade processes in EMC NetWorker Module for Microsoft Applications (NMM) 2.2.1, 2.3 before build 122, and 2.4 before build 375, when Exchange Server is used, allow local users to read cleartext administrator credentials via unspecified vectors.
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Analysis
by VulDB Data Team • 12/19/2021
The vulnerability identified as CVE-2012-2284 affects the EMC NetWorker Module for Microsoft Applications version 2.2.1, 2.3 prior to build 122, and 2.4 prior to build 375 when deployed in environments utilizing Microsoft Exchange Server. This security flaw resides within the installation and upgrade procedures of the NMM component, creating a critical exposure that compromises administrative credential security. The vulnerability represents a significant weakness in the credential handling mechanisms of enterprise backup and recovery software, particularly when integrated with Microsoft Exchange environments where administrative access is paramount for system integrity and data protection.
The technical exploitation of this vulnerability occurs through unspecified vectors that enable local users to obtain cleartext administrator credentials during the installation or upgrade phases of the EMC NetWorker Module. This represents a classic privilege escalation and credential exposure scenario where the normal security boundaries of the installation process are bypassed. The flaw likely involves improper handling of sensitive data during the software deployment lifecycle, potentially storing credentials in readable formats or exposing them through insecure logging mechanisms, process memory, or temporary files. This vulnerability falls under the category of credential exposure and privilege escalation as defined by CWE-255 and CWE-798, respectively, and aligns with ATT&CK techniques related to credential access and privilege escalation.
The operational impact of this vulnerability extends beyond simple credential theft, as it provides local attackers with administrative access to Exchange Server environments through the compromised NetWorker Module. This access could enable attackers to perform unauthorized backup operations, modify backup configurations, access backed-up data, or potentially escalate privileges further within the Exchange infrastructure. The vulnerability is particularly concerning because it affects the installation and upgrade processes, meaning that any local user with access to the system during these critical phases could exploit the flaw. This creates a window of opportunity during routine system maintenance and software updates, which are typically considered trusted operations. The exposure of cleartext credentials undermines the fundamental security principle of credential protection and could lead to unauthorized access to sensitive email data and Exchange server configurations.
Organizations should implement immediate mitigations including applying the vendor-provided patches for EMC NetWorker Module versions affected by this vulnerability, ensuring that the upgrade and installation processes are performed with elevated privileges and proper access controls. System administrators should review and restrict local user access during installation and upgrade procedures, implementing least privilege principles to minimize the attack surface. Additionally, monitoring for unauthorized access attempts during software deployment phases and implementing proper credential handling practices in backup and recovery environments can help detect and prevent exploitation attempts. The vulnerability demonstrates the importance of secure credential handling throughout the entire software lifecycle, particularly during installation and upgrade processes where temporary credentials may be exposed. Organizations should also consider implementing network segmentation and access controls to limit local user privileges and reduce the potential impact of such credential exposure vulnerabilities in their Exchange Server environments.