CVE-2019-9160 : What You Need to Know

Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier is vulnerable to a backdoor account exploit known as WAC, allowing unauthorized remote access and privilege escalation.

Understanding CVE-2019-9160

This CVE involves a hidden account in the Sangfor Sundray WLAN Controller, enabling attackers to gain root privileges through SSH access.

What is CVE-2019-9160?

The vulnerability in the Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier allows unauthorized access to the system via SSH on TCP port 22345, leading to root privilege escalation.

The Impact of CVE-2019-9160

Exploiting this vulnerability enables attackers to gain root privileges by utilizing the WebUI admin password combined with a fixed string, compromising system security.

Technical Details of CVE-2019-9160

The technical aspects of the CVE-2019-9160 vulnerability are as follows:

Vulnerability Description

Sangfor Sundray WLAN Controller version 3.7.4.2 and earlier contains a hidden account (WAC) allowing unauthorized remote access.

Affected Systems and Versions

Product: Sangfor Sundray WLAN Controller
Vendor: Sangfor
Versions affected: 3.7.4.2 and earlier

Exploitation Mechanism

Attackers exploit the backdoor account to gain unauthorized access via SSH on TCP port 22345.
Root privileges are obtained by combining the WebUI admin password with a fixed string.

Mitigation and Prevention

Protect your system from CVE-2019-9160 with the following measures:

Immediate Steps to Take

Change default passwords and ensure strong, unique credentials.
Monitor SSH access and restrict it to authorized users only.
Implement network segmentation to limit the impact of potential breaches.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security audits and penetration testing to identify and address weaknesses.

Patching and Updates

Apply patches and updates provided by Sangfor to address the CVE-2019-9160 vulnerability.