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Date: Tue, 12 Jan 2016 11:43:35 -0500 (EST)
From: cve-assign@...re.org
To: sec@...fl7.de
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE Request: Vtiger CRM 6.4 Authenticated Remote Code Execution
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Hash: SHA256
> This vulnerability is different than CVE-2015-6000 (in fact it is a
> result of an insufficient fix for CVE-2015-6000).
>
> Vtiger CRM allows for the upload of a "company logo" from within the
> administrative interface.
>
> Multiple flaws in the Settings_Vtiger_CompanyDetailsSave_Action class
> allow attackers to upload files with (almost) arbitrary contents,
> including PHP code passing commands to the underlying operating system.
>
> However, an attacker may choose to embed malicious PHP code within a
> valid image file, for example as EXIF data of a JPEG file. Once the
> server has received the attacker's JPEG file, mime_content_type() will
> process it, correctly consider it to be a valid image file, and return
> the MIME type "image/jpeg" -- which passes Vtiger's "mime type check".
>
> http://b.fl7.de/2016/01/vtiger-crm-6.4-auth-rce.html
As far as we can tell, the main issue you are reporting is that the
product attempts to forbid executable content within otherwise safe
file types, and does this incorrectly.
Use CVE-2016-1713.
There are no other CVE IDs for your report. For example, the ability
of the attacker to use the .php extension, although unusual, does not
seem to be an entirely separate problem.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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