CVE-2023-39337 in EPMM
Summary
by MITRE • 11/15/2023
A security vulnerability in EPMM Versions 11.10, 11.9 and 11.8 older allows a threat actor with knowledge of an enrolled device identifier to access and extract sensitive information, including device and environment configuration details, as well as secrets. This vulnerability poses a serious security risk, potentially exposing confidential data and system integrity.
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Analysis
by VulDB Data Team • 08/29/2024
This vulnerability affects EPMM (Enterprise Policy Management Module) versions 11.10, 11.9, and 11.8, representing a critical access control flaw that enables unauthorized data extraction through device identifier compromise. The vulnerability stems from insufficient authentication mechanisms and weak session management within the device enrollment and communication protocols. Threat actors can exploit this weakness by knowing a valid enrolled device identifier, which allows them to bypass normal access controls and gain unauthorized access to sensitive information. The affected system exposes not only device configuration details but also environmental settings and confidential secrets, creating a comprehensive data breach risk. This flaw directly impacts the integrity and confidentiality of enterprise mobile device management systems, where device identifiers serve as primary authentication tokens for accessing corporate resources.
The technical implementation of this vulnerability demonstrates a failure in proper authorization validation and session handling within the EPMM framework. When a device identifier is known, the system fails to properly authenticate subsequent requests or verify the legitimacy of access attempts. This represents a classic case of insufficient authentication controls, aligning with CWE-287 which addresses improper authentication issues. The vulnerability exists in the communication layer between enrolled devices and the management server, where device identifiers are used as authentication factors without proper cryptographic verification or additional security measures. Attackers can leverage this weakness to perform unauthorized data exfiltration, potentially accessing sensitive corporate information including network configurations, user credentials, and system settings that could be used for further exploitation.
The operational impact of this vulnerability extends beyond simple data exposure, creating potential for lateral movement and extended compromise within enterprise networks. Once threat actors gain access to device configuration details and environmental settings, they can develop targeted attacks against specific device types or network segments. The exposure of secrets and configuration information provides attackers with valuable intelligence for privilege escalation and system exploitation. This vulnerability particularly affects organizations relying on EPMM for mobile device management, where device identifiers often serve as the primary means of device authentication and access control. The risk is compounded by the fact that device identifiers may be obtained through various means including social engineering, network sniffing, or previous successful attacks against other systems within the organization. This vulnerability aligns with ATT&CK technique T1552.001 which covers credentials in files and T1083 which addresses file and directory discovery, as attackers can leverage this weakness to access sensitive system information.
Organizations should implement immediate mitigations including enhanced authentication mechanisms, regular device identifier rotation, and comprehensive monitoring of access patterns to detect anomalous behavior. The recommended approach involves deploying additional authentication layers beyond device identifiers, implementing strict access control policies, and establishing automated alerting for unauthorized access attempts. Security teams should conduct thorough assessments of their EPMM implementations to identify systems vulnerable to this flaw and ensure timely patching of affected versions. Network segmentation and monitoring solutions should be deployed to detect and prevent unauthorized access attempts, while regular security audits should verify that device identifiers are properly managed and protected. The vulnerability also necessitates enhanced security awareness training for administrators who may inadvertently expose device identifiers through improper handling or communication practices. Organizations should consider implementing zero-trust network access models where device identifiers alone are insufficient for system access, requiring additional authentication factors and continuous verification of device integrity and user identity.