[exim] Re: Run expansion with a tainted variable

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Συντάκτης: Jeremy Harris
Ημερομηνία:  
Προς: exim-users
Αντικείμενο: [exim] Re: Run expansion with a tainted variable
On 18/05/2024 19:49, Dominic Preston via Exim-users wrote:
> So it's not possible to run arbitrary shell commands by tainting a
> variable with `rm -fr /` unless, in this instance,
> spfquery.mail-spf-perl performed the operation itself as a result of
> the argument?
>


The docs say (in the string-expansions chapter, for ${run })
"The command name may not be tainted, but the remaining arguments can be".
--
Cheers,
Jeremy


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