CVE-2019-5239 in PCManager
Summary
by MITRE
Huawei PCManager with the versions before 9.0.1.66 (Oversea) and versions before 9.0.1.70 (China) have an information leak vulnerability. Successful exploitation may cause the attacker to read information.
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Analysis
by VulDB Data Team • 11/21/2023
The vulnerability identified as CVE-2019-5239 affects Huawei PCManager software across multiple regional versions, specifically targeting releases prior to 9.0.1.66 for overseas markets and 9.0.1.70 for Chinese markets. This information disclosure flaw represents a significant security weakness within Huawei's device management ecosystem that could potentially expose sensitive data to unauthorized parties. The vulnerability resides in the software's improper handling of information flow mechanisms, creating an avenue for attackers to access confidential data that should remain protected within the system's operational boundaries.
This information leak vulnerability stems from inadequate access controls and data protection mechanisms within the PCManager application. The flaw allows malicious actors to exploit the software's information handling processes to retrieve data that should be restricted or encrypted during normal operations. The technical implementation appears to lack proper validation and sanitization of data access requests, enabling unauthorized information retrieval through carefully crafted exploitation techniques. The vulnerability demonstrates poor adherence to secure coding practices and insufficient input validation that permits data exposure beyond intended access controls. Such weaknesses align with common security misconfigurations and improper privilege management patterns that frequently appear in enterprise software applications.
The operational impact of this vulnerability extends beyond simple data exposure, potentially compromising the integrity of Huawei's device management infrastructure and user privacy. Attackers could leverage this information leak to gain insights into system configurations, user data, or device status information that would normally remain confidential. The vulnerability affects users who rely on Huawei PCManager for device synchronization and management, potentially exposing personal information, device identifiers, or configuration details that could serve as entry points for more sophisticated attacks. This information disclosure creates opportunities for further exploitation including credential harvesting, system reconnaissance, and targeted attacks against specific user accounts or device populations.
Security professionals should implement immediate mitigations including mandatory software updates to versions 9.0.1.66 or later for overseas deployments and 9.0.1.70 or later for Chinese deployments. Organizations must conduct thorough vulnerability assessments to identify systems running affected versions and ensure all instances are updated promptly. Network monitoring should be enhanced to detect anomalous information access patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of maintaining current software versions and implementing proper access controls. From an att&ck framework perspective, this vulnerability maps to initial access and credential access tactics, potentially enabling adversaries to gather intelligence for more advanced attacks. Compliance with industry standards such as iso 27001 and nist cybersecurity framework becomes critical in addressing such information disclosure risks. The incident underscores the necessity of regular security testing and vulnerability management processes to prevent similar flaws from persisting in enterprise software environments.