CVE-2023-42698 in SC7731E
Summary
by MITRE • 12/04/2023
In omacp service, there is a possible way to write permission usage records of an app due to a missing permission check. This could lead to local information disclosure with no additional execution privileges needed
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Analysis
by VulDB Data Team • 05/30/2025
The vulnerability identified as CVE-2023-42698 resides within the omacp service component, representing a critical permission oversight that undermines the security model of the affected system. This flaw manifests as a missing permission check that allows unauthorized applications to write permission usage records, effectively bypassing the normal access controls that should govern such sensitive operations. The omacp service, which typically manages application permissions and access control policies, fails to validate whether the requesting entity possesses the necessary authorization to perform permission record writes, creating a significant security gap in the system's privilege management framework.
The technical implementation of this vulnerability stems from inadequate input validation and permission verification mechanisms within the omacp service. When applications attempt to log or update permission usage records, the service does not properly authenticate the requesting entity or verify that the application has the appropriate privileges to perform such operations. This missing validation step creates a path for malicious or unauthorized applications to manipulate permission records without requiring elevated privileges or additional execution capabilities. The vulnerability operates at the system level where permission management is handled, making it particularly dangerous as it directly affects the integrity of the access control mechanisms that protect sensitive system resources and user data.
The operational impact of CVE-2023-42698 extends beyond simple information disclosure, as it fundamentally compromises the trust model of the permission management system. Attackers can exploit this vulnerability to gain unauthorized access to permission usage data, potentially revealing sensitive information about application behavior, user activities, and system access patterns. The lack of additional execution privileges required to exploit this vulnerability makes it particularly dangerous as it can be leveraged by any application with basic system access, not just privileged processes. This capability could enable adversaries to perform reconnaissance activities, map application permissions, and potentially identify other vulnerabilities within the system through the information disclosed in the permission records.
From a cybersecurity perspective, this vulnerability aligns with CWE-284, which addresses improper access control issues, and represents a classic case of insufficient privilege checking. The ATT&CK framework categorizes this type of vulnerability under privilege escalation techniques, specifically targeting the use of system-level services to gain unauthorized access to sensitive data. Organizations implementing affected systems may find their permission management capabilities compromised, leading to potential data leakage and unauthorized access to protected resources. The vulnerability's impact is amplified by its local nature, as it does not require network access or external exploitation, making it particularly challenging to detect and mitigate. Effective mitigation strategies should focus on implementing proper permission validation within the omacp service, ensuring that all permission record operations are properly authenticated and authorized before execution, and conducting comprehensive security reviews of all system services that handle access control information.