CVE-2019-9469 : Exploit Details and Defense Strategies
Learn about CVE-2019-9469, a vulnerability in Android kernel allowing local privilege escalation without user interaction. Find out how to mitigate and prevent exploitation.
Android kernel vulnerability allowing local privilege escalation without user interaction.
Understanding CVE-2019-9469
A potential out-of-bounds write issue in km_compute_shared_hmac function in km4.c can lead to local privilege escalation on Android devices.
What is CVE-2019-9469?
The vulnerability arises from inadequate input validation in the Android kernel, potentially allowing attackers to escalate privileges locally without needing additional execution privileges.
The Impact of CVE-2019-9469
- Attackers can exploit this vulnerability to escalate their privileges on affected Android devices without user interaction.
Technical Details of CVE-2019-9469
The technical aspects of the vulnerability in the Android kernel.
Vulnerability Description
- Located in km4.c, the vulnerability allows an out-of-bounds write due to improper input validation.
Affected Systems and Versions
- Product: Android
- Versions: Android kernel
Exploitation Mechanism
- Attackers can exploit the vulnerability to escalate privileges locally without requiring additional execution privileges.
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2019-9469.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor vendor security bulletins for updates and advisories.
Long-Term Security Practices
- Regularly update and patch Android devices to protect against known vulnerabilities.
- Implement security best practices to minimize the risk of privilege escalation.
Patching and Updates
- Stay informed about security updates and patches released by Android to address CVE-2019-9469.