Fatek Automation Communication Server Stack Buffer Overflow Remote Code Execution Vulnerability

December 14th, 2016
ZDI-16-635 ZDI-CAN-3681

CVE ID

CVE-2016-5796

CVSS Score

7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Vendors

Fatek Automation

Affected Products

Communication Server

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Fatek Automation Communication Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of query requests. An overly long string sent while querying a server can trigger a stack buffer overflow. An attacker can leverage this vulnerability to execute arbitrary code in the context of the process.

Additional Details

Fatek Automation has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-16-287-06

Disclosure Timeline

  • 2016-04-26 - Vulnerability reported to vendor
  • 2016-12-14 - Coordinated public release of advisory

Credit

Anonymous

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