Advantech SUSIAccess Server UpgradeMgmt upload Directory Traversal Remote Code Execution Vulnerability

December 13th, 2016
ZDI-16-630 ZDI-CAN-3876

CVE ID

CVE-2016-9351

CVSS Score

8.5 AV:N/AC:M/Au:S/C:C/I:C/A:C

Affected Vendors

Advantech

Affected Products

SUSIAccess Server

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech SUSIAccess Server. Authentication is required to exploit this vulnerability.

The specific flaw exists within the processing of the UpgradeMgmt servlet upload function. The issue lies in the failure to properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute arbitrary code under the context of SYSTEM.

Additional Details

Advantech has issued an update to correct this vulnerability. More details can be found at:
https://ics-cert.us-cert.gov/advisories/ICSA-16-336-04

Disclosure Timeline

  • 2016-09-01 - Vulnerability reported to vendor
  • 2016-12-13 - Coordinated public release of advisory

Credit

rgod

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