On 12/09/2023 07:43, Niels Kobschätzki via Exim-users wrote:
> I have no idea how to de-taint this part because I guess ".${tr{${substr_1:$local_part_suffix}}" is the tainted part in the router.
You're using a wildcard in local_part_suffix. That isn't sufficiently restrictive
to de-taint the data supplied by a potential attacker. Consider using an explicit
list of permitted suffixes.
--
Cheers,
Jeremy
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