CVE-2020-25195 : What You Need to Know

Host Engineering H0-ECOM100, H2-ECOM100, and H4-ECOM100 modules are affected by an improper input validation vulnerability that could allow attackers to crash the device by bypassing input field length checks.

Understanding CVE-2020-25195

This CVE involves a vulnerability in the input field length verification process of specific Host Engineering modules, potentially enabling malicious actors to disrupt device functionality.

What is CVE-2020-25195?

The vulnerability in Host Engineering modules allows attackers to evade input field length validation, posing a risk of crashing the device by sending malicious input.

The Impact of CVE-2020-25195

The vulnerability could lead to a denial of service (DoS) scenario where attackers crash the affected devices by exploiting the input field length validation weakness.

Technical Details of CVE-2020-25195

This section provides detailed technical insights into the CVE-2020-25195 vulnerability.

Vulnerability Description

The flaw lies in the client-side input field length verification process of Host Engineering H0-ECOM100, H2-ECOM100, and H4-ECOM100 modules, allowing attackers to send input to crash the device.

Affected Systems and Versions

Host Engineering H0-ECOM100 Module: Hardware Versions 6x and prior with Firmware Versions 4.0.348 and prior, Hardware Version 7x with Firmware Versions 4.1.113 and prior, Hardware Version 9x with Firmware Versions 5.0.149 and prior.
Host Engineering H2-ECOM100 Module: Hardware Versions 5x and prior with Firmware Versions 4.0.2148 and prior, Hardware Version 8x with Firmware Versions 5.0.1043 and prior.
Host Engineering H4-ECOM100 Module: Firmware Versions 4.0.2148 and prior.

Exploitation Mechanism

Attackers can exploit the improper input validation by sending specially crafted input to the configuration web server, bypassing the length check and causing the device to crash.

Mitigation and Prevention

Protecting systems from CVE-2020-25195 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor-supplied patches or updates to address the vulnerability.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any signs of malicious activity.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.
Educate users and administrators about secure configuration practices.

Patching and Updates

Check with the vendor for available patches or firmware updates to fix the input validation issue.