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DST2K0042: Possible to read/execute any file with Talentsoft Web+ Application Server example scripts.
From: "Whitehouse, Ollie" <ollie () DELPHISPLC COM>
Date: Thu, 28 Sep 2000 17:13:46 +0100
Delphis Consulting Plc
Security Team Advisories
securityteam () delphisplc com
Adv : DST2K0042
Title : Possible to read any file with Talentsoft Web+ Application
Server example scripts.
Author : DCIST (securityteam () delphisplc com)
O/S : Affected: Linux
Not Affected: Microsoft Windows NT
Product : 4.6 Client-Server Linux (webpsvr Build 539)
4.6 Linux (Build 25)
Date : 26/09/2000
Vendor URL: http://www.talentsoft.com/
Delphis Consulting Internet Security Team (DCIST) discovered the following
vulnerability in Web+ Application Server under Linux.
If the default example scripts are installed it is possible to execute/read
any file which Web+ user (default is 'nobody') has access to using the
To exploit simply place a '|' after the parameter you which to provide to
ping and then the command you wish to execute.
Then type in host destination box:
127.0.0.1 | cat /etc/passwd
You will then be presented with the contents of the /etc/passwd file.
It is not possible to exploit this vulnerability under the WindowsNT
edition due to the fact that it does not seem to run a command shell
but rather a CreateProcess call to allow the application to run.
Vendor Status: Informed
Vendor solution below:
"We are in the process of modifying this script, but are recommending that
users on servers disable the webrun command in the webplus server admin
area for best protection against the exploitation of the example scripts.
We are also in the process of modifying these scripts to be more secure."
TalentSoft will be providing details of how to do the above at the below
TalentSoft Security Section:
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- DST2K0042: Possible to read/execute any file with Talentsoft Web+ Application Server example scripts. Whitehouse, Ollie (Sep 28)