full-disclosure - [FD] [KIS-2020-01] SuiteCRM <= 7.11.11 Second-Order PHP Object Injection Vulnerabilities

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Message-ID: <c07a08995bfd15ceb65a5136849fb32a@karmainsecurity.com>
Date: Wed, 12 Feb 2020 20:01:58 +0100
From: Egidio Romano <research@...mainsecurity.com>
To: fulldisclosure@...lists.org
Subject: [FD] [KIS-2020-01] SuiteCRM <= 7.11.11 Second-Order PHP Object
 Injection Vulnerabilities

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SuiteCRM <= 7.11.11 Second-Order PHP Object Injection Vulnerabilities
---------------------------------------------------------------------

[-] Software Link:

https://suitecrm.com/

[-] Affected Versions:

Version 7.11.11 and prior versions.

[-] Vulnerabilities Description:

1) The vulnerability exists because the 
"EmailsControllerActionGetFromFields::getEmailSignatures()” method
is using the unserialize() function with the "account_signatures” user 
preference, and such a value can be
arbitrarily manipulated by evil users through the EmailUIAjax interface. 
This can be exploited to inject
arbitrary PHP objects into the application scope, allowing an attacker 
to perform a variety of attacks,
such as executing arbitrary PHP code.

2) The vulnerability exists because the 
"EmailsControllerActionGetFromFields::handleActionGetFromFields()”
method is using the unserialize() function with the "showFolders” user 
preference, and such a value can be
arbitrarily manipulated by evil users through the EmailUIAjax interface. 
This can be exploited to inject
arbitrary PHP objects into the application scope, allowing an attacker 
to perform a variety of attacks,
such as executing arbitrary PHP code.

[-] Solution:

No official solution is currently available.

[-] Disclosure Timeline:

[19/09/2019] - Vendor notified
[20/09/2019] - Vendor acknowledgement
[12/11/2019] - Vendor contacted again asking for updates, no response
[20/01/2020] - Vendor notified about public disclosure intention, no 
response
[07/02/2020] - CVE number assigned
[12/02/2020] - Public disclosure

[-] CVE Reference:

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2020-8800 to these vulnerabilities.

[-] Credits:

Vulnerabilities discovered by Egidio Romano.

[-] Original Advisory:

http://karmainsecurity.com/KIS-2020-01

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