Re: Apache Http Server Reveals Script Source Code to Remote Users And Any Users Can Access The Forbidden Directory ("/WEB-INF/")

[Bill Stoddard <bill () wstoddard com>]

Wang Yun wrote:
> TOPIC:
> ======
> Apache + Resin Reveals JSP Source Code to Remote Users And Any Users Can Access Resin Forbidden Directory ("/WEB-INF/")
>
> Description:
> ============
> Security vulnerability has been found in Windows NT/2000 Systems that have Apache 1.3.29 + Resin 2.1.12 installed. The 
> vulnerability allows remote users view script Source Code And Access files in the Forbidden Directory.
>
> Exploits:
> =========
> http://apache/index.jsp%20
> It is possible to cause the Apache server to send back the content of index.jsp.
>
> http://apache/WEB-INF../
> It is possible to cause the Apache server to send back the list of "/WEB-INF/" Directory.
>
> Analyze:
> ========
> 1.Apache think "/WEB-INF../" unequal to "/WEB-INF/" So find this Directory by itself. 
> 2."/WEB-INF/" Directory not Forbidden in Apache Config files. 
> 3."d:\resin\doc\>cd WEB-INF.." legit in Windows Systems.
>
> Sorry for my poor english.
>
> lovehacker
> China

Don't put your jsp's under DocumentRoot. Same advice goes for CGI scripts, servlets, et. al.

Bill