[Esd-l] Double attachment gets through

[John D. Hardin]

On Tue, 30 Oct 2001, Dion Black wrote:

> Here is the raw text from the server (BSD Box running Sendmail).

  --Message-Boundary-9271
  Content-type: text/plain; charset=US-ASCII
  Content-transfer-encoding: 7BIT
  Content-description: Text from file 'testfile.jpg.vbs'


Again, it isn't a file attachment and Outlook has no business
attaching the filename "testfile.jpg.vbs" to it simply because that
appears in a comment field.

Unfortunately, this doesn't help much in the real world...

Okay, I've added some code to deal with this in a manner with as
little impact as possible. The development snapshot 1.31pre3 contains
this hack. I don't have a huge problem with altering comments, so
that's how I'm addressing the issue.

If you want to DISABLE this hack and leave Content-Description headers
alone, define the variable $SECURITY_DISABLE_OUTLOOK_HACKS to be
nonempty before calling the sanitizer.

Feedback welcome.

--
 John Hardin KA7OHZ   ICQ#15735746   http://www.wolfenet.com/~jhardin/
 jhardin at impsec.org        pgpk -a finger://gonzo.wolfenet.com/jhardin
  768: 0x41EA94F5 - A3 0C 5B C2 EF 0D 2C E5  E9 BF C8 33 A7 A9 CE 76 
 1024: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
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