CVE-2022-21744 : Exploit Details and Defense Strategies
CVE-2022-21744 in MediaTek Modem 2G RR allows remote code execution via GPRS Packet Neighbour Cell Data decoding flaw. Patch immediately to prevent exploitation.
In Modem 2G RR, there is a possible out of bounds write vulnerability that could lead to remote code execution. The issue exists due to a missing bounds check when decoding GPRS Packet Neighbour Cell Data (PNCD) with improper neighbouring cell size, requiring no additional execution privileges. User interaction is not needed for exploitation. The vulnerability affects various MediaTek products and versions.
Understanding CVE-2022-21744
This section provides insights into the details, impact, and mitigation strategies for CVE-2022-21744.
What is CVE-2022-21744?
CVE-2022-21744 is a remote code execution vulnerability found in Modem 2G RR that allows attackers to execute arbitrary code by leveraging the out of bounds write flaw in PNCD decoding process.
The Impact of CVE-2022-21744
The impact of this vulnerability is significant as it enables threat actors to remotely execute malicious code on affected devices without requiring user interaction.
Technical Details of CVE-2022-21744
Explore the technical aspects of the vulnerability to better understand its implications.
Vulnerability Description
The vulnerability arises from a missing bounds check in the PNCD decoding process, leading to an out of bounds write situation.
Affected Systems and Versions
The vulnerability affects a wide range of MediaTek products, including Modem LR9, LR11, LR12, LR12A, LR13, NR15, and NR16.
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating GPRS Packet Neighbour Cell Data with improper neighbouring cell size to trigger remote code execution.
Mitigation and Prevention
Discover the steps to mitigate the CVE-2022-21744 vulnerability and prevent potential exploitation.
Immediate Steps to Take
Immediately apply the provided patch ID: MOLY00810064 to address the vulnerability and enhance system security.
Long-Term Security Practices
Implement stringent security practices, such as regular security updates, network segmentation, and access controls, to bolster overall cybersecurity.
Patching and Updates
Stay vigilant for future security updates and patches from MediaTek to safeguard against emerging threats.