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Ecava IntegraXor Buffer Overflow Vulnerability

Low RiskICS-CERT ICSA-14-016-01Oct 19, 2014
Summary

A stack-based buffer overflow vulnerability (CWE-121) exists in Ecava IntegraXor version 4.1.4380 and earlier. The vulnerability allows remote code execution on affected systems. No patched version is available from the vendor.

What this means
What could happen
A buffer overflow vulnerability in Ecava IntegraXor could allow an attacker to execute arbitrary code on the HMI/SCADA workstation, potentially enabling them to alter process displays, modify alarms, or disrupt operator control of connected equipment.
Who's at risk
Ecava IntegraXor users running version 4.1.4380 or earlier. IntegraXor is a human-machine interface (HMI) and SCADA visualization software used in water treatment, power distribution, and industrial process control environments to monitor and operate PLCs and other control devices.
How it could be exploited
An attacker with network access to the IntegraXor application could send a specially crafted input to trigger a buffer overflow, overwriting memory and executing malicious code on the workstation running the software.
Prerequisites
  • Network access to the IntegraXor workstation or network segment where it operates
  • IntegraXor version 4.1.4380 or earlier running
Buffer overflow vulnerabilityNo patch availableAffects SCADA/HMI systemsCould enable arbitrary code execution
Exploitability
Moderate exploit probability (EPSS 3.1%)
Affected products (1)
ProductAffected VersionsFix Status
IntegraXor: <=4.1.4380≤ 4.1.4380No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2
HARDENINGImplement network-based access controls and firewall rules to limit connections to IntegraXor to authorized engineering and operator workstations only
HARDENINGMonitor IntegraXor logs and network traffic for suspicious connection attempts or buffer overflow attack patterns
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

WORKAROUNDContact Ecava to determine if an upgrade path or alternative product is available, given no official fix is available for this version
Mitigations - no patch available
0/1
IntegraXor: <=4.1.4380 has reached End of Life. The vendor will not release a patch. Apply the following compensating controls:
HARDENINGIsolate IntegraXor workstations on a protected network segment with restricted access from untrusted networks
View full CISA ICS-CERT advisory
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