CVE-2018-21089 : Exploit Details and Defense Strategies
Discover the critical CVE-2018-21089 affecting Samsung mobile devices. Learn about the integer overflow in the bootloader, allowing arbitrary code execution and how to mitigate the risk.
A problem was found in the software of certain Samsung mobile devices running on N(7.x) (MT6755/MT6757 Mediatek models). The bootloader experiences an integer overflow which can result in the execution of arbitrary code through the control of download offset. This issue has been assigned the Samsung ID SVE-2017-10732 and was discovered in January 2018.
Understanding CVE-2018-21089
This CVE identifies a critical vulnerability in Samsung mobile devices that could allow attackers to execute arbitrary code.
What is CVE-2018-21089?
This CVE describes an integer overflow issue in the bootloader of specific Samsung mobile devices, potentially leading to the execution of unauthorized code by manipulating the download offset.
The Impact of CVE-2018-21089
The vulnerability could be exploited by malicious actors to execute arbitrary code on affected Samsung devices, compromising user data and device integrity.
Technical Details of CVE-2018-21089
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The bootloader of Samsung mobile devices with N(7.x) (MT6755/MT6757 Mediatek models) software is susceptible to an integer overflow, enabling the execution of arbitrary code through control of the download offset.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by manipulating the download offset, triggering an integer overflow in the bootloader and allowing the execution of unauthorized code.
Mitigation and Prevention
Protecting systems from CVE-2018-21089 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Samsung promptly.
- Monitor official Samsung communications for updates and security advisories.
Long-Term Security Practices
- Regularly update device software to the latest versions.
- Implement security best practices to prevent unauthorized access to devices.
Patching and Updates
Ensure that all security patches and updates released by Samsung are applied to mitigate the vulnerability effectively.