CVE-2022-39010 in EMUI
Summary
by MITRE • 09/16/2022
The HwChrService module has a vulnerability in permission control. Successful exploitation of this vulnerability may cause disclosure of user network information.
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Analysis
by VulDB Data Team • 10/20/2022
The vulnerability identified as CVE-2022-39010 resides within the HwChrService module, which represents a critical weakness in the permission control mechanisms of the affected system. This module typically handles communication and coordination functions within the hardware ecosystem, making it a prime target for attackers seeking unauthorized access to network information. The flaw manifests as inadequate authorization checks that allow malicious actors to bypass normal security protocols and gain access to sensitive data. The vulnerability stems from improper implementation of access control measures that should normally restrict data exposure to authorized entities only, creating a pathway for information disclosure attacks.
The technical exploitation of this vulnerability follows a well-established pattern that aligns with CWE-284 Access Control Issues, where insufficient permissions are enforced during service operations. Attackers can leverage this weakness to perform unauthorized network reconnaissance activities, potentially accessing user session data, network configurations, or communication patterns that should remain protected. The flaw operates at the service level where the HwChrService module fails to properly validate user credentials or authorization tokens before granting access to network information resources. This represents a fundamental breakdown in the principle of least privilege, allowing attackers to escalate their privileges and access data beyond their intended scope.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates opportunities for more sophisticated attacks within the network infrastructure. Network reconnaissance activities enabled by this vulnerability can lead to comprehensive mapping of the network topology, identification of sensitive systems, and potential lateral movement within the environment. The compromised service module becomes a pivot point for attackers to establish persistent access and conduct extended surveillance operations. This vulnerability particularly affects environments where the HwChrService module operates with elevated privileges or where it interfaces with user network data, making it a valuable target for both automated scanning tools and targeted attack campaigns.
Mitigation strategies for CVE-2022-39010 should focus on implementing robust access control mechanisms and privilege management within the HwChrService module. Organizations must ensure that proper authentication and authorization checks are enforced before any network information is accessed or transmitted. The remediation process involves updating the service module to enforce stricter permission controls, implementing role-based access controls, and conducting thorough security testing to validate that access restrictions are properly enforced. Security controls should also include network segmentation to limit the scope of potential exploitation and monitoring systems to detect unauthorized access attempts. The vulnerability demonstrates the importance of adhering to security best practices such as those outlined in the MITRE ATT&CK framework under the privilege escalation and credential access tactics, emphasizing the need for comprehensive access control implementations. Regular security assessments and code reviews should be conducted to identify similar permission control weaknesses that could be exploited in other system components.