CVE-2020-5725 : What You Need to Know

The Grandstream UCM6200 series before 1.0.20.22 is vulnerable to an SQL injection via the HTTP server's websockify endpoint. A remote unauthenticated attacker can invoke the login action with a crafted username and, through the use of timing attacks, can discover user passwords.

Understanding CVE-2020-5725

This CVE identifies a security vulnerability in the Grandstream UCM6200 series that allows for SQL injection attacks.

What is CVE-2020-5725?

CVE-2020-5725 is an SQL injection vulnerability in the Grandstream UCM6200 series before version 1.0.20.22. It enables remote unauthenticated attackers to access user passwords through crafted username inputs.

The Impact of CVE-2020-5725

The vulnerability poses a significant risk as attackers can exploit it to extract sensitive user information, compromising the security and privacy of affected systems.

Technical Details of CVE-2020-5725

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw in the Grandstream UCM6200 series allows attackers to perform SQL injection attacks via the websockify endpoint of the HTTP server.

Affected Systems and Versions

Product: Grandstream UCM6200 series
Vendor: n/a
Vulnerable Versions: 1.0.20.20 and below

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted username inputs to the login action, leveraging timing attacks to reveal user passwords.

Mitigation and Prevention

Protecting systems from CVE-2020-5725 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Grandstream UCM6200 series to version 1.0.20.22 or above to mitigate the vulnerability.
Implement network segmentation to limit access to critical systems.
Monitor and analyze network traffic for any suspicious activities.

Long-Term Security Practices

Regularly conduct security assessments and penetration testing to identify and address vulnerabilities.
Educate users on secure password practices and the risks of SQL injection attacks.
Stay informed about security updates and patches for all system components.
Consider implementing additional security measures such as web application firewalls.

Patching and Updates

Apply patches and updates provided by Grandstream promptly to address the SQL injection vulnerability and enhance system security.