Schneider Electric Accutech Manager Heap Overflow
Act NowICS-CERT ICSA-13-043-01Nov 16, 2013
Summary
Schneider Electric Accutech Manager version 2.00.1 and earlier contains a heap buffer overflow vulnerability (CWE-122) in how the application handles memory allocation and writes. This flaw could be triggered to cause denial of service or code execution on affected systems.
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 on the management workstation, potentially disrupting plant monitoring and control coordination.
Who's at risk
Energy sector operators and engineers who rely on Schneider Electric Accutech Manager for plant oversight and coordination. This affects any organization running version 2.00.1 or earlier of the management software, particularly those with centralized SCADA management or energy facility coordination roles.
How it could be exploited
An attacker would need to send a specially crafted input or network request to Accutech Manager that triggers the heap overflow condition. This could be done through the application's network interface or file handling mechanisms, allowing memory corruption that leads to application crash or code execution on the management workstation.
Prerequisites
- Network access to Accutech Manager application port or interface
- Ability to send malformed input or specially crafted network packets to the vulnerable component
High exploit probability (EPSS 62.3%)No vendor patch availableRemotely exploitableLow complexity exploitationAffects management/coordination systems
Exploitability
High exploit probability (EPSS 62.3%)
Affected products (1)
ProductAffected VersionsFix Status
accutech Manager: <=2.00.1≤ 2.00.1No fix yet
Remediation & Mitigation
0/5
Do now
0/2HARDENINGImplement network segmentation to restrict access to Accutech Manager to authorized engineering workstations and control networks only
WORKAROUNDDeploy firewall rules to block unauthorized access to Accutech Manager ports from outside the plant network or DMZ
Schedule — requires maintenance window
0/2Patching may require device reboot — plan for process interruption
HOTFIXContact Schneider Electric for patch availability or workaround guidance; monitor for updates to Accutech Manager that address heap overflow vulnerability
WORKAROUNDMonitor Accutech Manager application logs and system behavior for crashes or unexpected activity that may indicate exploitation attempts
Long-term hardening
0/1HARDENINGImplement access controls to ensure only authorized personnel can interact with Accutech Manager; consider running the application on a dedicated, air-gapped workstation where feasible
CVEs (1)
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