CVE-2019-2174 : Exploit Details and Defense Strategies

Android versions 7.1.1, 7.1.2, 8.0, 8.1, and 9 are affected by a use-after-free vulnerability in SensorManager::assertStateLocked in SensorManager.cpp, potentially leading to local privilege escalation without additional execution privileges.

Understanding CVE-2019-2174

This CVE identifies a vulnerability in Android versions 7.1.1, 7.1.2, 8.0, 8.1, and 9 that could allow for local privilege escalation.

What is CVE-2019-2174?

The vulnerability lies in SensorManager::assertStateLocked in SensorManager.cpp in the affected Android versions.
It could result in a use-after-free issue due to improper locking mechanisms.
Exploiting this vulnerability may lead to local privilege escalation without requiring extra execution privileges.
User interaction is not necessary for the exploit to occur.

The Impact of CVE-2019-2174

Local privilege escalation without additional execution privileges is possible.
The vulnerability could be exploited without user interaction.

Technical Details of CVE-2019-2174

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a use-after-free issue in SensorManager::assertStateLocked in SensorManager.cpp.

Affected Systems and Versions

Android versions 7.1.1, 7.1.2, 8.0, 8.1, and 9 are affected.

Exploitation Mechanism

Improper implementation of the locking mechanism in SensorManager::assertStateLocked could lead to the vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2019-2174 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor.
Monitor vendor security bulletins for updates.
Implement proper locking mechanisms in the affected code.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Conduct security audits and code reviews to identify and address potential issues.

Patching and Updates

Stay informed about security updates from Android for the affected versions.
Apply patches promptly to mitigate the risk of exploitation.