[Esd-l] Detection rule for sendmail header exploit

John D. Hardin jhardin at impsec.org
Sat Mar 8 19:42:07 PST 2003

On Sat, 8 Mar 2003, Joe Steele wrote:

> To be effective without casting too large a net, each address in a
> list needs to be scanned separately.  Attempting to do this with a
> regular expression could get complicated.


> Another point to note is that the RE should begin with the
> following in order to trap all headers for which sendmail is
> vulnerable:
> * ^((resent-)?(sender|from|(reply-)?to|cc|bcc)\
>     |(errors|disposition-notification|apparently)-to):

Thanks! I've incorporated that.

 John Hardin KA7OHZ    ICQ#15735746    http://www.impsec.org/~jhardin/
 jhardin at impsec.org                        pgpk -a jhardin at impsec.org
 key: 0xB8732E79 - 2D8C 34F4 6411 F507 136C  AF76 D822 E6E6 B873 2E79
 ...voice or no voice, the people can always be brought to the bidding
 of the leaders. That is easy. All you have to do is tell them they
 are being attacked and denounce the pacifists for lack of patriotism
 and exposing the country to danger. It works the same way in any
                                            -- Hermann Goering
   75 days until The Matrix Reloaded

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