CVE-2017-11122 : Vulnerability Insights and Analysis

CVE-2017-11122 was published on October 4, 2017, and involves an information leak vulnerability in Broadcom BCM4355C0 Wi-Fi chips with firmware version 9.44.78.27.0.1.56. Attackers can exploit the ICMPv6 router advertisement offloading feature to trigger this vulnerability.

Understanding CVE-2017-11122

This CVE entry highlights a specific security issue related to insufficient length validation on Broadcom Wi-Fi chips, potentially leading to information disclosure.

What is CVE-2017-11122?

The vulnerability in Broadcom BCM4355C0 Wi-Fi chips with firmware version 9.44.78.27.0.1.56 allows attackers to leak information by exploiting the ICMPv6 router advertisement offloading feature.

The Impact of CVE-2017-11122

The vulnerability can result in an information leak, potentially exposing sensitive data to unauthorized parties.

Technical Details of CVE-2017-11122

This section delves into the technical aspects of the CVE entry.

Vulnerability Description

The vulnerability arises from insufficient length validation on Broadcom BCM4355C0 Wi-Fi chips with firmware version 9.44.78.27.0.1.56, enabling attackers to trigger an information leak through the ICMPv6 router advertisement offloading feature.

Affected Systems and Versions

Affected Product: n/a
Affected Vendor: n/a
Affected Version: 9.44.78.27.0.1.56

Exploitation Mechanism

Attackers exploit the ICMPv6 router advertisement offloading feature on Broadcom BCM4355C0 Wi-Fi chips with the specified firmware version to trigger the information leak vulnerability.

Mitigation and Prevention

Protecting systems from CVE-2017-11122 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable the ICMPv6 router advertisement offloading feature on affected Broadcom Wi-Fi chips.
Monitor network traffic for any suspicious activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Check for firmware updates from Broadcom to address the vulnerability.
Apply patches promptly to ensure the security of Wi-Fi chips and prevent information leaks.