CVE-2020-5760 : What You Need to Know

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to an OS command injection vulnerability, allowing unauthenticated remote attackers to execute arbitrary commands as root.

Understanding CVE-2020-5760

What is CVE-2020-5760?

The CVE-2020-5760 vulnerability affects Grandstream HT800 Series devices with firmware versions 1.0.17.5 and earlier, enabling attackers to execute unauthorized commands remotely.

The Impact of CVE-2020-5760

This vulnerability allows unauthenticated attackers to gain root access on affected devices, potentially leading to unauthorized control and manipulation of the device.

Technical Details of CVE-2020-5760

Vulnerability Description

The vulnerability in Grandstream HT800 Series firmware versions 1.0.17.5 and below allows for OS command injection, enabling attackers to execute arbitrary commands by manipulating configuration files and SIP messages.

Affected Systems and Versions

Product: Grandstream HT800 Series
Vendor: n/a
Vulnerable Versions: 1.0.17.5 and below

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a special configuration file and sending a manipulated SIP message to the target device, granting them unauthorized root access.

Mitigation and Prevention

Immediate Steps to Take

Update the firmware to the latest version provided by Grandstream to patch the vulnerability.
Implement network segmentation to restrict access to vulnerable devices.
Monitor network traffic for any suspicious activity that may indicate exploitation attempts.

Long-Term Security Practices

Regularly update firmware and software to mitigate potential vulnerabilities.
Conduct security assessments and penetration testing to identify and address security weaknesses.

Patching and Updates

It is crucial to apply patches and updates released by Grandstream promptly to ensure the security of the HT800 Series devices.