Exploit Microsoft IIS 4.0 / Microsoft Site Server 3.0 - Showcode ASP

[Exploiter]

EDB-ID

19129

Проверка EDB

1. Пройдено

Автор

L0PHT

Тип уязвимости

REMOTE

Платформа

MULTIPLE

CVE

cve-1999-0736

Дата публикации

1999-05-07

source: https://www.securityfocus.com/bid/167/info

A sample Active Server Page (ASP) script installed by default on Microsoft's Internet Information Server (IIS) 4.0 gives remote users access to view any file on the same volume as the web server that is readable by the web server.

IIS 4.0 installs a number of sample ASP scripts including one called "showcode.asp". This script allows clients to view the source of other sample scripts via a browser. The "showcode.asp" script does not perform sufficent checks and allows files outside the sample directory to be requested. In particular, it does not check for ".." in the path of the requested file.

The script takes one parameter, "source", which is the file to view. The script's default location URL is:

http://www.sitename.com/msadc/Samples/SELECTOR/showcode.asp

Similar vulnerabilities have been noted in ViewCode.asp, CodeBrws.asp and Winmsdp.exe.

http://www.sitename.com/msadc/Samples/SELECTOR/showcode.asp?source=/msadc/Samples/../../../../../boot.ini

Using CodeBrws.asp, it is possible to view Outlook mail folders: http://some-sitename-here/iissamples/exair/howitworks/codebrws.asp?source=/../../winnt/Profiles/Administrator/Application%20Data/Microsoft/Outlook%20Express/Mail/inbox.mbx