CVE-2020-5784 : Exploit Details and Defense Strategies

Server-Side Request Forgery in Teltonika firmware TRB2_R_00.02.04.3 allows a low privileged user to cause the application to perform HTTP GET requests to arbitrary URLs.

Understanding CVE-2020-5784

This CVE involves a Server-Side Request Forgery vulnerability in Teltonika Gateway TRB245 firmware version TRB2_R_00.02.04.3.

What is CVE-2020-5784?

CVE-2020-5784 is a security vulnerability that enables a low privileged user to trigger the application to execute HTTP GET requests to any URL.

The Impact of CVE-2020-5784

The vulnerability allows unauthorized users to manipulate the application to perform potentially malicious actions, such as accessing sensitive data or executing unauthorized commands.

Technical Details of CVE-2020-5784

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability in Teltonika firmware TRB2_R_00.02.04.3 permits a low privileged user to initiate HTTP GET requests to arbitrary URLs, potentially leading to unauthorized data access or command execution.

Affected Systems and Versions

Product: Teltonika Gateway TRB245
Version: TRB2_R_00.02.04.3 firmware

Exploitation Mechanism

The vulnerability can be exploited by a low privileged user to manipulate the application into making HTTP GET requests to URLs of their choice, bypassing normal security restrictions.

Mitigation and Prevention

To address CVE-2020-5784, follow these mitigation strategies:

Immediate Steps to Take

Apply security patches provided by Teltonika promptly.
Restrict network access to vulnerable devices.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and software to the latest versions.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security advisories from Teltonika.
Apply security updates and patches as soon as they are released.