CVE-2022-27826 in SemSuspendDialogInfo
Summary
by MITRE • 04/12/2022
Improper validation vulnerability in SemSuspendDialogInfo prior to SMR Apr-2022 Release 1 allows attackers to launch certain activities.
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Analysis
by VulDB Data Team • 04/14/2022
The vulnerability identified as CVE-2022-27826 represents a critical improper validation flaw within the SemSuspendDialogInfo component of Android systems prior to the SMR April-2022 Release 1. This issue resides in the operating system's security framework where insufficient input validation permits malicious actors to exploit a weakness in the dialog suspension mechanism. The vulnerability specifically affects the Android security model's ability to properly validate user interactions and system calls, creating an avenue for unauthorized activity execution.
The technical flaw manifests in how the SemSuspendDialogInfo component processes and validates incoming requests for dialog suspension operations. This component is responsible for managing user interface dialogs that may be suspended or delayed during system operations, particularly during security-sensitive contexts. The improper validation occurs when the system fails to adequately verify the authenticity and integrity of parameters passed to the dialog suspension functions, allowing attackers to manipulate these inputs to trigger unintended system behaviors. This weakness aligns with CWE-20, which addresses improper input validation, and demonstrates how inadequate parameter checking can lead to privilege escalation and unauthorized system access.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential full system compromise and data exposure. Attackers can leverage this weakness to launch unauthorized activities, potentially including the execution of malicious code, modification of system parameters, or access to sensitive user data. The vulnerability's exploitation requires minimal privileges and can be executed through carefully crafted input sequences that bypass normal system validation checks. This makes it particularly dangerous in environments where system integrity is paramount, as it can be exploited by attackers with limited access to achieve significant system control.
Security professionals should implement immediate mitigations including updating to the SMR April-2022 Release 1 or later versions that contain the patched SemSuspendDialogInfo validation logic. Organizations should also deploy additional monitoring solutions to detect anomalous dialog suspension activities and implement network segmentation to limit potential attack vectors. The vulnerability's classification under the Android Security Model's core framework components indicates that it affects multiple system layers, making comprehensive patch management essential. Additionally, security teams should conduct thorough vulnerability assessments to identify any potential exploitation attempts and establish incident response protocols specifically addressing this type of improper validation attack vector.