OTPulse

Schneider Electric Accutech Manager Heap Overflow

Act NowICS-CERT ICSA-13-043-01Nov 16, 2013
Schneider ElectricEnergy
Summary

A heap buffer overflow vulnerability exists in Schneider Electric Accutech Manager version 2.00.1 and earlier. The vulnerability could allow remote exploitation leading to application crash or arbitrary code execution. No vendor patch is currently available for this product.

What this means
What could happen
A heap buffer overflow in Accutech Manager could allow an attacker to crash the application or execute arbitrary code, potentially disrupting energy monitoring and control functions.
Who's at risk
Energy utilities using Accutech Manager for power system monitoring and control should be concerned. This product is typically used for supervisory control and data acquisition (SCADA) functions in electrical distribution systems.
How it could be exploited
An attacker with network access to the Accutech Manager application could send a specially crafted input that triggers a heap buffer overflow, potentially allowing code execution on the system running the manager.
Prerequisites
  • Network access to Accutech Manager application port or interface
  • Ability to send malformed input to the vulnerable component
remotely exploitableno patch availablehigh EPSS score (62.3%)
Exploitability
Likely to be exploited — EPSS score 62.3%
Affected products (1)
ProductAffected VersionsFix Status
accutech Manager: <=2.00.1≤ 2.00.1No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2
HARDENINGIsolate Accutech Manager on a dedicated network segment or behind a firewall to restrict access to trusted systems only
HARDENINGImplement access controls to limit which users and systems can connect to Accutech Manager
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

HARDENINGMonitor Accutech Manager for unexpected crashes or restarts that could indicate exploitation attempts
WORKAROUNDReview network traffic to Accutech Manager for suspicious or malformed inputs
View full CISA ICS-CERT advisory
API: /api/v1/advisories/9f91e199-73b9-441c-93cd-a1d1018c6759

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