CVE-2021-0703 : Security Advisory and Response

This CVE-2021-0703 article provides an in-depth understanding of a vulnerability affecting Android-11. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2021-0703

CVE-2021-0703 is a security vulnerability present in Android-11 that could lead to local privilege escalation without the need for user interaction. The flaw resides in the incorrect shared_ptr usage in SecondStageMain of init.cpp.

What is CVE-2021-0703?

The vulnerability in SecondStageMain of init.cpp allows for a potential use after free scenario, enabling an attacker with physical access to the device to escalate privileges locally.

The Impact of CVE-2021-0703

Exploitation of this vulnerability could lead to a local elevation of privilege, posing a significant security risk to devices running Android-11 without requiring any additional execution privileges.

Technical Details of CVE-2021-0703

Get insights into the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The use after free issue in SecondStageMain of init.cpp paves the way for local privilege escalation, without the need for user interaction.

Affected Systems and Versions

The vulnerability impacts devices running Android-11, where the incorrect shared_ptr usage can be exploited by attackers with physical device access.

Exploitation Mechanism

Attackers with physical access to the device can exploit the flawed shared_ptr implementation in SecondStageMain of init.cpp to escalate privileges locally.

Mitigation and Prevention

Discover the immediate steps and best security practices to prevent exploitation and secure affected systems.

Immediate Steps to Take

It is crucial to apply security patches promptly, restrict physical access to devices, and monitor for any suspicious activities to mitigate the risk of exploitation.

Long-Term Security Practices

Implement a robust security policy, regularly update systems with the latest patches, conduct security awareness training, and follow security best practices to enhance device security.

Patching and Updates

Ensure timely installation of security updates released by the vendor, and consider additional security measures such as endpoint protection solutions to safeguard against potential attacks.