Advisory Details

December 13th, 2017

NetGain Systems Enterprise Manager settings.upload_005ffile_005fdo_jsp filename Directory Traversal Remote Code Execution Vulnerability

ZDI-17-968
ZDI-CAN-5194

CVE ID CVE-2017-16603
CVSS SCORE 9, (AV:N/AC:L/Au:S/C:C/I:C/A:C)
AFFECTED VENDORS NetGain Systems
AFFECTED PRODUCTS Enterprise Manager
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 29826. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute code by creating arbitrary files on vulnerable installations of NetGain Systems Enterprise Manager. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the org.apache.jsp.u.jsp.settings.upload_005ffile_005fdo_jsp servlet, which listens on TCP port 8081 by default. When parsing the filename parameter, the process does not properly validate user-supplied data, which can allow for the upload of files. An attacker can leverage this vulnerability to execute code under the context of Administrator.

ADDITIONAL DETAILS


Fixed for NetGain Enterprise Manager - fixed version: v7.2.766 and above


DISCLOSURE TIMELINE
  • 2017-09-08 - Vulnerability reported to vendor
  • 2017-12-13 - Coordinated public release of advisory
CREDIT rgod
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