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1. EXECUTIVE SUMMARY

CVSS v4 8.7
ATTENTION: Exploitable remotely/low attack complexity/public exploits are available
Vendor: Positron S.R.L
Equipment: Broadcast Signal Processor TRA7005
Vulnerability: Authentication Bypass Using an Alternate Path or Channel

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to bypass authentication and access unauthorized protected areas of the application.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Positron Broadcast Signal Processor are affected:

Broadcast Signal Processor TRA7005: v1.20

3.2 Vulnerability Overview

3.2.1 AUTHENTICATION BYPASS USING AN ALTERNATE PATH OR CHANNEL CWE-288

Positron Broadcast Signal Processor TRA7005 v1.20 is vulnerable to an authentication bypass exploit that could allow an attacker to have unauthorized access to protected areas of the application.

CVE-2024-7007 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

A CVSS v4 score has also been calculated for CVE-2024-7007. A base score of 8.7 has been calculated; the CVSS vector string is (CVSS4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N).

3.3 BACKGROUND

CRITICAL INFRASTRUCTURE SECTORS: Communications
COUNTRIES/AREAS DEPLOYED: Italy
COMPANY HEADQUARTERS LOCATION: Italy

3.4 RESEARCHER

CISA discovered a public proof of concept (PoC) as authored by Gjoko Krstic and reported it to Positron.

4. MITIGATIONS

Positron has not responded to requests to work with CISA to mitigate this vulnerability. Users of affected versions of TRA7005 are invited to contact Positron customer support for additional information.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more 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 the 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 on 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.

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.

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 exploitation specifically targeting this vulnerability has been reported to CISA at this time.

5. UPDATE HISTORY

July 25, 2024: Initial Publication