CVE-2022-21774 : Exploit Details and Defense Strategies
Discover the details of CVE-2022-21774, a TEEI driver vulnerability with a possible use-after-free scenario and privilege escalation risks. Learn about affected systems, exploitation, and mitigation strategies.
A detailed overview of CVE-2022-21774 highlighting the impact, technical details, and mitigation strategies.
Understanding CVE-2022-21774
This section provides insights into the vulnerability identified as CVE-2022-21774.
What is CVE-2022-21774?
The CVE-2022-21774 vulnerability resides in the TEEI driver, leading to a possible use-after-free scenario due to a race condition. Exploiting this vulnerability could result in a local escalation of privilege, requiring System execution privileges without the need for user interaction. The Patch ID for this issue is ALPS06641447.
The Impact of CVE-2022-21774
The impact of CVE-2022-21774 is significant as it allows malicious actors to elevate privileges locally without any user interaction, posing a threat to the security of affected systems.
Technical Details of CVE-2022-21774
Delve into the technical aspects of CVE-2022-21774 to understand the vulnerability better.
Vulnerability Description
The vulnerability stems from a race condition in the TEEI driver, leading to a use-after-free scenario, enabling privilege escalation on the target system.
Affected Systems and Versions
Products affected include MT6761, MT6765, MT6768, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6875, MT6877, MT6879, MT6885, MT6893, MT6895, and MT6983. Vulnerable versions include Android 11.0 and 12.0.
Exploitation Mechanism
The exploitation of CVE-2022-21774 involves leveraging the identified race condition in the TEEI driver to execute privileged operations without user interaction.
Mitigation and Prevention
Explore the steps to mitigate and prevent the exploitation of CVE-2022-21774.
Immediate Steps to Take
Immediate actions involve applying patches provided by the vendor to address the vulnerability and prevent potential privilege escalation attacks.
Long-Term Security Practices
Implementing robust security practices, including regular system updates, security monitoring, and threat detection mechanisms, is essential for long-term protection against similar vulnerabilities.
Patching and Updates
Regularly applying security patches released by MediaTek for affected products and ensuring systems are up to date with the latest software versions are crucial steps in mitigating the risks associated with CVE-2022-21774.