CVE-2021-0904 : Exploit Details and Defense Strategies

Android devices with specific hardware are affected by a vulnerability that could allow a local attacker to bypass permissions and escalate privileges without user interaction.

Understanding CVE-2021-0904

This CVE identifies a permission bypass issue in SRAMROM that requires immediate attention to prevent potential privilege escalation.

What is CVE-2021-0904?

CVE-2021-0904 highlights an insecure permission setting in SRAMROM, posing a risk of local privilege escalation on devices running Android 8.1, 9.0, 10.0, and 11.0 without the need for user interaction.

The Impact of CVE-2021-0904

The vulnerability could be exploited by a malicious actor to gain system execution privileges, potentially leading to unauthorized access and control over the affected device.

Technical Details of CVE-2021-0904

Understanding the specific details of the vulnerability is crucial to implementing effective mitigation strategies.

Vulnerability Description

The flaw arises from an insecure permission configuration in SRAMROM, allowing an attacker to bypass restrictions and execute unauthorized actions with elevated privileges.

Affected Systems and Versions

Devices utilizing MT6771, MT8183, MT8385, and MT8788 hardware with Android versions 8.1 through 11.0 are vulnerable to this exploit.

Exploitation Mechanism

The vulnerability enables threat actors to circumvent security protocols and gain escalated privileges within the system, potentially compromising user data and device integrity.

Mitigation and Prevention

Taking immediate action to address CVE-2021-0904 is essential to safeguarding user privacy and system security against potential exploits.

Immediate Steps to Take

Users and device manufacturers should prioritize applying relevant security patches and updates to mitigate the risk posed by this vulnerability.

Long-Term Security Practices

Implementing robust security measures, such as regular security assessments and access control mechanisms, is crucial for preventing similar vulnerabilities in the future.

Patching and Updates

Staying informed about security bulletins and promptly applying patches provided by the device vendor is essential in strengthening the overall security posture of Android devices.