AVEVA IEC870IP Driver CVE-2019-13537 Stack Buffer Overflow Vulnerability

Risk

Medium

Date Discovered

October 17, 2019

Description

AVEVA IEC870IP Driver for Vijeo Citect and Citect SCADA is prone to a stack-based buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied input. Attackers can exploit this issue to cause a server-side crash, denying service to legitimate users. AVEVA IEC870IP Driver for Vijeo Citect and Citect SCADA version 4.14.02 and prior are vulnerable.

Technologies Affected

  • Schneider-Electric AVEVA Citect SCADA
  • Schneider-Electric AVEVA IEC870IP 4.14.02
  • Schneider-Electric AVEVA Vijeo Citect

Recommendations

Run all software as a nonprivileged user with minimal access rights.
Run all non-administrative software as a non-administrative user with the least amount of privileges required to successfully operate. This will greatly reduce the potential damage that successful exploitation may achieve.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Implement multiple redundant layers of security.
Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker's ability to exploit this vulnerability to execute arbitrary code.

Updates are available. Please see the references or vendor advisory for more information.

Credits

VAPT Team, C3i Center, IIT Kanpur


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