CVE-2017-6520 : What You Need to Know

The BOSE Soundtouch 30 has a vulnerability where its Multicast DNS (mDNS) responder responds to IPv4 unicast queries with non-link-local source addresses, potentially leading to a denial of service attack or unauthorized access to sensitive data.

Understanding CVE-2017-6520

The vulnerability in the BOSE Soundtouch 30 allows remote attackers to exploit the device using port-5353 UDP packets.

What is CVE-2017-6520?

The BOSE Soundtouch 30's mDNS responder responds to IPv4 unicast queries with non-link-local source addresses, enabling attackers to launch denial of service attacks or potentially access sensitive information.

The Impact of CVE-2017-6520

Remote attackers can exploit the vulnerability to conduct traffic amplification attacks or gain unauthorized access to sensitive data.

Technical Details of CVE-2017-6520

The technical aspects of the vulnerability in the BOSE Soundtouch 30.

Vulnerability Description

The mDNS responder in the BOSE Soundtouch 30 responds to IPv4 unicast queries with non-link-local source addresses, creating a security loophole.

Affected Systems and Versions

Affected Product: BOSE Soundtouch 30
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit the vulnerability by sending port-5353 UDP packets to the device.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2017-6520 vulnerability.

Immediate Steps to Take

Disable the mDNS responder on the BOSE Soundtouch 30 if possible.
Implement network-level protections to filter and block malicious port-5353 UDP packets.

Long-Term Security Practices

Regularly update the device firmware to patch known vulnerabilities.
Monitor network traffic for any suspicious activities targeting port-5353.

Patching and Updates

Check for firmware updates from BOSE to address the CVE-2017-6520 vulnerability.