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Advantech Studio Test Web Server Buffer Overflow

Act NowICS-CERT ICSA-10-337-01Sep 5, 2010
Summary

A buffer overflow vulnerability exists in the web server component of Advantech Studio version 6.1 and earlier. This flaw allows an attacker to overflow a buffer in the web server, potentially leading to code execution or denial of service on systems running affected versions.

What this means
What could happen
An attacker could execute arbitrary code on a system running Advantech Studio or crash the web server, potentially disrupting configuration, monitoring, or control of industrial processes managed through the Studio interface.
Who's at risk
Water authorities and electric utilities using Advantech Studio version 6.1 or earlier for SCADA configuration, monitoring, or control of industrial equipment should be concerned. This affects any organization relying on Advantech Studio for management of PLCs, RTUs, or other field devices.
How it could be exploited
An attacker with network access to the Advantech Studio web server port could send a specially crafted request with excessive data that overflows a buffer in the web server, allowing code execution or process termination.
Prerequisites
  • Network access to Advantech Studio web server port
  • Advantech Studio version 6.1 or earlier installed
remotely exploitableno patch availablebuffer overflow (CWE-119)high EPSS score (17%)
Exploitability
High exploit probability (EPSS 17.0%)
Affected products (1)
ProductAffected VersionsFix Status
Advantech Studio: <=6.1≤ 6.1No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2
HARDENINGIsolate Advantech Studio systems from untrusted networks using firewall rules; restrict web server port access to authorized engineering workstations only
WORKAROUNDDisable or restrict remote access to the Advantech Studio web server if not required for operations
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

HARDENINGMonitor network traffic to and from Advantech Studio systems for suspicious connection attempts
HOTFIXEvaluate upgrade path to a newer version of Advantech Studio if vendor releases a patched version
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