CVE-2022-26465 in MT6779
Summary
by MITRE • 09/06/2022
In audio ipi, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06558799; Issue ID: ALPS06558799.
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Analysis
by VulDB Data Team • 10/14/2022
The vulnerability identified as CVE-2022-26465 resides within the audio ipi component of a system, representing a critical out-of-bounds write condition that stems from an improper bounds check implementation. This flaw exists in the audio processing subsystem and specifically affects the inter-process communication mechanisms used for audio data handling. The vulnerability manifests when the system processes audio data through the ipi (inter-process communication) framework, where insufficient validation of buffer boundaries allows malicious data to overwrite adjacent memory regions.
This memory corruption vulnerability falls under the CWE-787 category of out-of-bounds write conditions, which represents a fundamental flaw in input validation and memory management practices. The issue is particularly concerning as it enables local privilege escalation without requiring user interaction, making it highly attractive to attackers who can leverage this weakness to gain system-level privileges. The absence of user interaction requirements significantly reduces the attack surface and increases the exploitability of this vulnerability.
The operational impact of CVE-2022-26465 extends beyond simple memory corruption, as successful exploitation can lead to complete system compromise through privilege escalation. Attackers who can trigger this vulnerability gain the ability to execute arbitrary code with system execution privileges, potentially allowing them to install persistent backdoors, modify critical system files, or extract sensitive data from the device. The vulnerability affects the audio subsystem's inter-process communication mechanisms, which may be accessed by various system components and applications, amplifying the potential attack vectors.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1068 which covers "Local Port Configuration" and T1059 which addresses "Command and Scripting Interpreter" techniques. The flaw represents a path to privilege escalation that could be leveraged in supply chain attacks or by adversaries who have already gained access to a low-privilege account. The patch ID ALPS06558799 indicates this was addressed through a specific firmware update, suggesting the vulnerability was present in Android-based systems and their audio processing frameworks.
The remediation approach for CVE-2022-26465 requires immediate deployment of the patch referenced as ALPS06558799, which corrects the bounds checking implementation within the audio ipi component. System administrators should prioritize this update across all affected devices, particularly those running Android-based operating systems where audio processing is a core function. Additionally, organizations should implement runtime monitoring to detect anomalous behavior patterns that might indicate exploitation attempts, while also reviewing access controls and privilege assignments to minimize potential damage from any successful exploitation attempts.