1. EXECUTIVE SUMMARY

​CVSS v3 9.8 
​ATTENTION: Exploitable remotely/low attack complexity/public exploits are available
​Vendor: GeoVision
​Equipment: GV-ADR2701
​Vulnerabilities: Improper Authentication

2. RISK EVALUATION

​Successful exploitation of this vulnerability could allow an attacker to log in to the camera’s web application.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

​GeoVision reports this vulnerability affects the following GV-ADR2701 cameras: 

​GV-ADR2701: Version V1.00_2017_12_15

3.2 VULNERABILITY OVERVIEW

3.2.1 ​IMPROPER AUTHENTICATION CWE-287

​In GeoVision GV-ADR2701 cameras, an attacker could edit the login response to access the web application.

​CVE-2023-3638 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

3.3 BACKGROUND

​CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities
​COUNTRIES/AREAS DEPLOYED: Worldwide
​COMPANY HEADQUARTERS LOCATION: Taiwan

3.4 RESEARCHER

​CISA discovered public proof of concept as authored by Chan Nyein Wai.

4. MITIGATIONS

GeoVision recommends that users of these devices upgrade to newer models with the latest firmware update which they have verified are not vulnerable to this issue such as TDR2704, TDR2702, or TDR2700. Alternatively, users could restrict connection of these cameras to closed local area networks isolated from internet connection.

​CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:

​Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the Internet.
​Locate control system networks and remote devices behind firewalls and isolate them from business networks.
​When remote access is required, use secure methods, such as virtual private networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.

​CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

​CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

​Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

​Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

​No known public exploits specifically target this vulnerability. This vulnerability is exploitable remotely. This vulnerability has low attack complexity.