CVE-2022-26435 : What You Need to Know
Learn about CVE-2022-26435, a MediaTek vulnerability in mailbox allowing local privilege escalation without user interaction. Mitigation steps and affected systems included.
A detailed overview of CVE-2022-26435 highlighting the impact, technical details, and mitigation strategies.
Understanding CVE-2022-26435
CVE-2022-26435 is a vulnerability in MediaTek devices that could lead to local escalation of privilege without the need for user interaction.
What is CVE-2022-26435?
The vulnerability exists in the mailbox of affected MediaTek devices, potentially allowing an out-of-bounds write due to type confusion. Attackers can exploit this to escalate privileges locally.
The Impact of CVE-2022-26435
CVE-2022-26435 poses a significant threat as it could result in a local escalation of privilege, requiring only System execution privileges without any user interaction.
Technical Details of CVE-2022-26435
Let's delve into the specifics of the vulnerability to better understand its implications.
Vulnerability Description
The vulnerability arises due to type confusion in the mailbox, enabling attackers to perform an out-of-bounds write. This can be exploited for local privilege escalation.
Affected Systems and Versions
MediaTek devices running Android 11.0, 12.0, or Yocto 3.1, 3.3 are impacted by CVE-2022-26435. Affected products include a range of MT series chipsets.
Exploitation Mechanism
Attackers can exploit this vulnerability without the need for user interaction, making it particularly dangerous. The exploit requires System execution privileges to execute malicious activities.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2022-26435 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to apply the provided patch, identified by Patch ID: ALPS07138435, to address the vulnerability promptly.
Long-Term Security Practices
Incorporating robust security practices like regular updates, endpoint protection, and security awareness training can enhance the overall security posture.
Patching and Updates
Keep your MediaTek devices up to date with the latest security patches and firmware updates to mitigate known vulnerabilities and enhance device security.