Re: [exim] CVE-2019-10149: already vulnerable ?

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Συντάκτης: Jasen Betts
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: Re: [exim] CVE-2019-10149: already vulnerable ?
On 2019-07-03, Marc Haber via Exim-users <exim-users@???> wrote:
> On Sun, 23 Jun 2019 20:02:33 +0100, Jeremy Harris via Exim-users
><exim-users@???> wrote:
>>  deny  local_parts = \N ^.*$ : ^.*\\x24 : ^.*\\0?44 \N
>>        message = no mate

>
> This might be a really stupid question, but what exactly does that do?
>
> ^.*$ blocks local_parts containing a $


It looks to me like it matches any string, it should probably be ^.*\$
which would match any astring contailnin literal '$'

> ^.\\x24 does the same?


matches containing literal '\x24'

> but I'm stymied about the \\0.44 notation, what's that?


assuming typo: \\0?44 matches strings containing literal '\044' and '\44'

--
When I tried casting out nines I made a hash of it.