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MICROSYS PROMOTIC Use After Free Vulnerability

Low RiskICS-CERT ICSA-12-102-03Jan 13, 2012
Summary

MICROSYS PROMOTIC contains a use-after-free vulnerability (CWE-416) affecting versions prior to 8.1.7. This memory safety issue could allow an attacker to access or corrupt memory, potentially affecting the reliability and integrity of the control system.

What this means
What could happen
An attacker could exploit this vulnerability to crash PROMOTIC or execute arbitrary code on systems running the affected software, disrupting your control system operations or allowing unauthorized control of processes.
Who's at risk
This affects organizations using MICROSYS PROMOTIC for industrial process visualization and control, particularly in manufacturing, utilities, and discrete process environments where PROMOTIC serves as the human-machine interface (HMI) or supervisory control system.
How it could be exploited
An attacker with access to the PROMOTIC application or a system running it could trigger the use-after-free condition by supplying malformed input or interactions that cause the application to reference freed memory, potentially leading to memory corruption or code execution.
Prerequisites
  • Access to PROMOTIC application or the system where it runs
  • Ability to interact with the vulnerable component
Memory safety vulnerabilityEnd-of-life product (no fix available)Local or local network exploitation likely
Exploitability
Low exploit probability (EPSS 0.3%)
Affected products (1)
ProductAffected VersionsFix Status
PROMOTIC: <8.1.7.<8.1.7.No fix (EOL)
Remediation & Mitigation
0/4
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpgrade PROMOTIC to version 8.1.7 or later if possible; however, note that no patch is available for this advisory from the vendor
Mitigations - no patch available
0/3
PROMOTIC: <8.1.7. has reached End of Life. The vendor will not release a patch. Apply the following compensating controls:
HARDENINGImplement network segmentation to restrict access to PROMOTIC systems from untrusted networks and limit user interactions to authorized personnel only
HARDENINGMonitor PROMOTIC systems for unexpected crashes or anomalous behavior that could indicate exploitation attempts
HARDENINGEvaluate replacement or upgrade of PROMOTIC to a newer, actively supported version if end-of-life status prevents patching
View full CISA ICS-CERT advisory
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