Full Report
[Control systems] ABB security advisory (AV26-545)
Analysis Summary
# Vulnerability: Multiple Security Flaws in ABB T-MAC Plus
## CVE Details
- **CVE ID:** CVE-2025-14771, CVE-2025-14772, CVE-2025-14773, CVE-2025-14774
- **CVSS Score:** Not explicitly detailed in the summary (Typically high for these types of control system flaws)
- **CWE:** Not specified, but likely includes categories such as Authentication Bypass, Injection, or Improper Input Validation based on standard ICS vulnerabilities.
## Affected Systems
- **Products:** ABB T-MAC Plus (Terminal Management and Control)
- **Versions:** All versions prior to **4.0-24**
- **Configurations:** Standard deployments of vulnerability-prone versions.
## Vulnerability Description
While the Canadian Centre for Cyber Security (CCCS) alert lists four distinct CVEs (2025-14771 through 2025-14774), the technical specifics indicate a suite of flaws within the T-MAC Plus terminal management system. These types of vulnerabilities in ICS/SCADA management software typically involve weaknesses in the web interface or communication protocols used to manage terminal operations.
## Exploitation
- **Status:** Not reported as exploited in the wild (as of the advisory date).
- **Complexity:** likely Low to Medium.
- **Attack Vector:** Network (Remote) is typical for these CVE series in management interfaces.
## Impact
- **Confidentiality:** Potential for unauthorized data access.
- **Integrity:** Potential for unauthorized modification of terminal control parameters.
- **Availability:** Potential for Denial of Service (DoS) or loss of control over terminal management.
## Remediation
### Patches
- ABB recommends upgrading **T-MAC Plus** to version **4.0-24** or later. Users should contact their local ABB representative or access the ABB customer portal to obtain the latest firmware/software updates.
### Workarounds
- Implement network segmentation: Ensure T-MAC Plus devices are not directly accessible from the internet.
- Restrict access to the management interface to trusted workstations only (using hardware firewalls or ACLs).
- Disable unused services and ports within the T-MAC Plus environment.
## Detection
- **Indicators of compromise:** Unusual administrative login attempts, unexpected system reboots, or unauthorized changes to terminal configuration logs.
- **Detection methods and tools:** Monitor network traffic for anomalies on ports associated with T-MAC Plus management. Review system logs for the presence of the CVE identifiers or related exploitation patterns.
## References
- **ABB Official Advisory:** hxxps[://]search[.]abb[.]com/library/Download[.]aspx?DocumentID=9AKK108472A7840&LanguageCode=en&DocumentPartId=&Action=Launch
- **ABB Cyber Security Portal:** hxxps[://]global[.]abb/group/en/technology/cyber-security/alerts-and-notifications
- **Canadian Centre for Cyber Security (AV26-545):** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/control-systems-abb-security-advisory-av26-545