Learn about CVE-2022-26468, a vulnerability in certain MediaTek chipsets' USB preloader component allowing local escalation of privilege. Patch available - ALPS07168125.
A missing bounds check in the preloader (USB) of certain MediaTek chipsets could allow a local attacker physical access to the device to perform an out of bounds write, leading to an elevation of privilege without the need for additional execution privileges. User interaction is required for exploitation.
Understanding CVE-2022-26468
This CVE affects a range of MediaTek chipsets and versions running Android 11.0 and 12.0.
What is CVE-2022-26468?
The vulnerability exists in the preloader (USB) component of affected MediaTek chipsets, allowing an attacker physical access to escalate privileges locally without additional execution privileges.
The Impact of CVE-2022-26468
The out of bounds write vulnerability poses a risk of local escalation of privilege for an attacker who can physically interact with the device.
Technical Details of CVE-2022-26468
The following technical details are associated with this CVE:
Vulnerability Description
The issue arises from a missing bounds check in the preloader (USB) code.
Affected Systems and Versions
Chipsets including MT6735, MT6739, MT6761, and more, running Android 11.0 and 12.0 are impacted.
Exploitation Mechanism
An attacker with physical device access can exploit this vulnerability to gain escalated privileges.
Mitigation and Prevention
Taking immediate action and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2022-26468.
Immediate Steps to Take
Apply the provided Patch ID: ALPS07168125 to address the vulnerability.
Long-Term Security Practices
Enforce strict physical access controls and regularly update systems to prevent such privilege escalation vulnerabilities.
Patching and Updates
Stay informed about security bulletins and patch releases from MediaTek for ongoing protection.