CVE-2018-11874 : Exploit Details and Defense Strategies

In the Snapdragon Mobile versions SD 835, SD 845, SD 850, and SDA660, a buffer overflow vulnerability arises when the passphrase length exceeds 32 characters during the setup of a secure NDP connection.

Understanding CVE-2018-11874

This CVE involves a buffer overflow issue in specific Snapdragon Mobile versions, potentially leading to security risks.

What is CVE-2018-11874?

A buffer overflow occurs in Snapdragon Mobile devices when configuring a secure NDP connection with a passphrase longer than 32 characters.

The Impact of CVE-2018-11874

The vulnerability could allow attackers to execute arbitrary code or cause a denial of service by exploiting the buffer overflow.

Technical Details of CVE-2018-11874

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability stems from a buffer overflow triggered by passphrase lengths exceeding 32 characters during secure NDP connection setup.

Affected Systems and Versions

Product: Snapdragon Mobile
Vendor: Qualcomm, Inc.
Versions: SD 835, SD 845, SD 850, SDA660

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious passphrase exceeding 32 characters, leading to a buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2018-11874 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches or updates provided by Qualcomm to address the vulnerability.
Avoid configuring NDP connections with passphrases longer than 32 characters.

Long-Term Security Practices

Regularly update firmware and software to mitigate potential vulnerabilities.
Implement network segmentation and access controls to limit the impact of successful attacks.
Conduct security assessments and penetration testing to identify and address security weaknesses.

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm to apply patches promptly.