TippingPoint Zero Day Initiative
 

NetGain Systems Enterprise Manager deviceReport.deviceReport_005fexport_005fdo_jsp filename Directory Traversal Arbitrary File Overwrite Vulnerability

ZDI-17-969: December 13th, 2017

CVE ID

CVSS Score

Affected Vendors

Affected Products

    Enterprise Manager

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 29827. For further product information on the TippingPoint IPS:

Vulnerability Details


This vulnerability allows remote attackers to overwrite 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.cnnic.asset.deviceReport.deviceReport_005fexport_005fdo_jsp servlet, which listens on TCP port 8081 by default. When parsing the filename parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to overwrite any files accessible to the Administrator.

Vendor Response

NetGain Systems states:


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

This vulnerability was discovered by:
    rgod