[NT] Mozilla Thunderbird Attachment Spoofing Vulnerability
- From: SecuriTeam <support@xxxxxxxxxxxxxx>
- Date: 19 Jan 2006 17:02:34 +0200
The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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Mozilla Thunderbird Attachment Spoofing Vulnerability
------------------------------------------------------------------------
SUMMARY
Mozilla Thunderbird displays display attachments in a wrongful manner
which allows attackers to spoof attachments and convince users to execute
arbitrary programs.
DETAILS
Vulnerable Systems:
* Mozilla Thunderbird version 1.0.2
* Mozilla Thunderbird version 1.0.6
* Mozilla Thunderbird version 1.0.7
Immune Systems:
* Mozilla Thunderbird version 1.5
The vulnerability is caused due to attachments not being displayed
correctly in mails. This can be exploited to spoof the file extension and
the associated file type icon via a combination of overly long
filenames containing whitespaces and "Content-Type" headers not matching
the file extension.
Successful exploitation may lead to malware being saved to e.g. the
desktop.
NOTE: Attachments can be saved by dragging the attachment, or using the
"Save As..." or "Save All..." functionality. For files on the desktop the
icon can be spoofed if it e.g. is a ".exe" or ".lnk" file.
Disclosure Timeline:
01/07/2005 - Initial vendor notification.
10/07/2005 - Vendor confirms the vulnerability.
27/07/2005 - Vulnerability fixed in the CVS repository.
12/01/2006 - Thunderbird 1.5 released.
17/01/2006 - Public disclosure.
ADDITIONAL INFORMATION
The information has been provided by <mailto:vuln@xxxxxxxxxxx> Secunia
Research.
The original article can be found at:
<http://secunia.com/secunia_research/2005-22/advisory/>
http://secunia.com/secunia_research/2005-22/advisory/
The bug report can be found at:
<https://bugzilla.mozilla.org/show_bug.cgi?id=300246>
https://bugzilla.mozilla.org/show_bug.cgi?id=300246
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