CVE-2021-35122 : Vulnerability Insights and Analysis

Qualcomm, Inc. is affected by CVE-2021-35122, a critical vulnerability found in multiple Snapdragon products. The issue arises due to improper input validation, allowing unauthorized modification of RG permissions in certain regions. This vulnerability impacts a wide range of Snapdragon devices, including Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, and Snapdragon Wearables.

Understanding CVE-2021-35122

This section provides insights into the nature and impact of the CVE-2021-35122 vulnerability.

What is CVE-2021-35122?

The CVE-2021-35122 vulnerability stems from improper input validation in Snapdragon products, enabling potential attackers to manipulate permissions within the system's IO space.

The Impact of CVE-2021-35122

With a CVSS base score of 9.3, this critical vulnerability can severely compromise the confidentiality, integrity, and availability of affected devices. It poses a significant risk, especially in non-secure regions, where RG permissions could be exploited.

Technical Details of CVE-2021-35122

In this section, we delve into the technical aspects of CVE-2021-35122 to understand its implications and affected systems.

Vulnerability Description

The vulnerability allows unauthorized actors to modify RG permissions in the IO space of Snapdragon products due to inadequate input validation techniques.

Affected Systems and Versions

A vast array of Snapdragon products are impacted by CVE-2021-35122, including various versions of Snapdragon Auto, Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, and more.

Exploitation Mechanism

The vulnerability's exploitation involves manipulating RG permissions in the IO space of the affected Snapdragon devices, potentially leading to unauthorized access and control.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks posed by CVE-2021-35122 and safeguard vulnerable systems.

Immediate Steps to Take

Implement security patches provided by Qualcomm promptly to address the vulnerability in affected devices.
Regularly monitor and audit permissions within the IO space to detect any unauthorized modifications.

Long-Term Security Practices

Follow secure coding practices to ensure robust input validation mechanisms within the system.
Conduct periodic security assessments and penetration testing to identify and remediate potential vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates released by Qualcomm to address CVE-2021-35122 and other potential security risks across Snapdragon devices.