CVE-2021-30274 : Exploit Details and Defense Strategies

Possible integer overflow in access control initialization interface due to lack and size and address validation in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

Understanding CVE-2021-30274

This CVE involves a possible integer overflow in the access control initialization interface in various Qualcomm products.

What is CVE-2021-30274?

The CVE-2021-30274 vulnerability relates to an integer overflow issue due to insufficient size and address validation in certain Qualcomm products, potentially allowing attackers to exploit the flaw for malicious purposes.

The Impact of CVE-2021-30274

With a CVSS base score of 8.4, this high-severity vulnerability could have a significant impact on the confidentiality, integrity, and availability of affected systems. As the privilege required is none, an attacker could potentially exploit this flaw with local access.

Technical Details of CVE-2021-30274

This section covers specific technical details related to CVE-2021-30274.

Vulnerability Description

The vulnerability stems from an integer overflow in the access control initialization interface, potentially leading to security compromises within the affected Qualcomm products.

Affected Systems and Versions

Numerous Qualcomm products are affected by this vulnerability, including but not limited to AR8031, AR8035, CSR8811, CSRA6620, CSRA6640, and many more. Refer to the vendor's security bulletin for a comprehensive list of impacted versions.

Exploitation Mechanism

The lack of proper size and address validation in the access control initialization interface opens the door for potential exploitation by threat actors. Attackers may leverage this vulnerability to execute arbitrary code or launch other malicious activities.

Mitigation and Prevention

It is crucial to take immediate steps to address and mitigate the risks associated with CVE-2021-30274.

Immediate Steps to Take

Consider implementing security measures such as applying patches, updates, or workarounds provided by Qualcomm to remediate the vulnerability effectively.

Long-Term Security Practices

Incorporate robust security practices, such as regular security assessments, threat monitoring, and access control mechanisms, to enhance the overall security posture of the systems.

Patching and Updates

Regularly check for security updates and patches released by Qualcomm to address CVE-2021-30274 and other potential vulnerabilities within the affected products.