[Esd-l] Can't get Procmail-security to work...

[John D. Hardin]

On Thu, 25 Oct 2001, Brett Glass wrote:

> Here's a "poisoned" file that we have used with John's sanitizer.
> Note that it does produce the occasional "false positive," most
> often when users naively use an attachment file name such as
> "Plan.rev.doc". But the security is well worth it.
> 
> --Brett
> 
> *.[a-z][a-z][a-z0-9].[a-z0-9]+

I've been bothered by the same thing for a while.

I'm considering changing the default poisoned list to something like:

  *.[a-z][a-z][a-z0-9].(com|exe|bat|pif|dll|etc...)

so that multiple-extension documents don't automatically get poisoned.

Any comments?

--
 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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  "Bother," said Pooh as he struggled with /etc/sendmail.cf, "it never
  does quite what I want. I wish Christopher Robin was here."
				-- Peter da Silva in a.s.r
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