CVE-2023-3704 : Exploit Details and Defense Strategies

This CVE-2023-3704 involves a Timestamp Modification Vulnerability in CP-Plus Digital Video Recorder. It was published on August 24, 2023, by CERT-In, the assigning organization.

Understanding CVE-2023-3704

This vulnerability is found in CP-Plus DVR systems due to improper input validation within the web-based management interface of the affected products. An attacker could exploit this flaw remotely without authentication, leading to the manipulation of system time on the targeted device.

What is CVE-2023-3704?

The vulnerability in CP-Plus DVR stems from a lack of proper input validation, enabling unauthorized users to send specially crafted HTTP requests to change the system time of the affected devices.

The Impact of CVE-2023-3704

If successfully exploited, this vulnerability could allow a remote attacker to modify the system time of the CP-Plus Digital Video Recorder, potentially disrupting operations or facilitating further unauthorized access.

Technical Details of CVE-2023-3704

This section covers the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from a lack of input validation within the web interface, enabling remote attackers to manipulate the system time using specially crafted HTTP requests.

Affected Systems and Versions

The affected products include Aditya Infotech Limited's CP-Plus DVR models, such as CP-UVR-1601E1-HC, CP-UVR-1601E2-H, CP-UVR-1601E1-H, CP-UVR-0801F1-HC, CP-UVR-0801K1-H, CP-UVR-0801K1B-H, CP-UVR-0808K1-H, CP-UVR-0401L1-4KH, and CP-UVR-0401L1B-4KH with versions below 4.000.00AT008.0.R.20230302.

Exploitation Mechanism

The vulnerability can be exploited by sending malicious HTTP requests to the vulnerable devices, allowing unauthorized changes to the system time by remote attackers.

Mitigation and Prevention

To address CVE-2023-3704, users and administrators can take the following steps:

Immediate Steps to Take

Upgrade to the latest firmware provided by CP-Plus to mitigate the vulnerability and ensure system security.

Long-Term Security Practices

Regularly monitor and update system firmware to protect against potential security risks.
Implement network segmentation and access controls to limit exposure of critical devices.
Educate users on best practices to reduce the risk of successful exploitation of vulnerabilities.

Patching and Updates

By applying the recommended firmware update from CP-Plus, users can safeguard their CP-Plus Digital Video Recorder against the Timestamp Modification Vulnerability and prevent unauthorized manipulation of system time.