Advisory Details

November 20th, 2015

Tibbo AggreGate SCADA/HMI Server Service uploadDirectory Remote Code Execution Vulnerability

ZDI-15-571
ZDI-CAN-3134

CVE ID CVE-2015-7912
CVSS SCORE 9.3, (AV:N/AC:M/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Tibbo
AFFECTED PRODUCTS AggreGate SCADA/HMI
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 20813. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Tibbo AggreGate SCADA/HMI. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the Windows service "AggreGate Server Service" (ag_server_service.exe). Through the "Ice Faces" servlet it is possible to upload arbitrary Java code inside an accessible web path, due to functionality which allows importation of application properties through uploaded xml files. An attacker can leverage this vulnerability to execute code under the context of SYSTEM.

ADDITIONAL DETAILS Tibbo has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-15-323-01
DISCLOSURE TIMELINE
  • 2015-08-24 - Vulnerability reported to vendor
  • 2015-11-20 - Coordinated public release of advisory
CREDIT Andrea Micalizzi (rgod)
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