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Land , add stdapi_net_resolve_hosts to php meterpreter

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Tim W 2021-04-12 12:23:44 +01:00
commit 41d51af8c9
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GPG Key ID: 217FBA50ABBAABEF
1 changed files with 91 additions and 0 deletions

91
php/meterpreter/ext_server_stdapi.php

@ -49,6 +49,8 @@ define("TLV_TYPE_NETWORK_INTERFACE", TLV_META_TYPE_GROUP | 1433);
define("TLV_TYPE_SUBNET_STRING", TLV_META_TYPE_STRING | 1440); define("TLV_TYPE_SUBNET_STRING", TLV_META_TYPE_STRING | 1440);
define("TLV_TYPE_NETMASK_STRING", TLV_META_TYPE_STRING | 1441); define("TLV_TYPE_NETMASK_STRING", TLV_META_TYPE_STRING | 1441);
define("TLV_TYPE_GATEWAY_STRING", TLV_META_TYPE_STRING | 1442); define("TLV_TYPE_GATEWAY_STRING", TLV_META_TYPE_STRING | 1442);
define("TLV_TYPE_ROUTE_METRIC", TLV_META_TYPE_UINT | 1443);
define("TLV_TYPE_ADDR_TYPE", TLV_META_TYPE_UINT | 1444);
# Socket # Socket
define("TLV_TYPE_PEER_HOST", TLV_META_TYPE_STRING | 1500); define("TLV_TYPE_PEER_HOST", TLV_META_TYPE_STRING | 1500);
@ -298,6 +300,12 @@ define("ERROR_CONNECTION_ERROR", 10000);
# eval'd twice # eval'd twice
my_print("Evaling stdapi"); my_print("Evaling stdapi");
##
# Windows Constants
##
define("WIN_AF_INET", 2);
define("WIN_AF_INET6", 23);
## ##
# Search Helpers # Search Helpers
## ##
@ -436,6 +444,35 @@ function add_stat_buf($path) {
} }
} }
if (!function_exists('resolve_host')) {
function resolve_host($hostname, $family) {
/* requires PHP >= 5 */
if ($family == AF_INET) {
$dns_family = DNS_A;
} elseif ($family == AF_INET6) {
$dns_family = DNS_AAAA;
} else {
throw new Exception('invalid family, must be AF_INET or AF_INET6');
}
$dns = dns_get_record($hostname, $dns_family);
if (empty($dns)) {
return NULL;
}
$result = array("family" => $family);
$record = $dns[0];
if ($record["type"] == "A") {
$result["address"] = $record["ip"];
}
if ($record["type"] == "AAAA") {
$result["address"] = $record["ipv6"];
}
$result["packed_address"] = inet_pton($result["address"]);
return $result;
}
}
# #
# Need to nail down what this should actually do. Ruby's File.expand_path is # Need to nail down what this should actually do. Ruby's File.expand_path is
# for canonicalizing a path (e.g., removing /./ and ../) and expanding "~" into # for canonicalizing a path (e.g., removing /./ and ../) and expanding "~" into
@ -1163,7 +1200,61 @@ function stdapi_registry_set_value($req, &$pkt) {
} }
} }
if (!function_exists('stdapi_net_resolve_host')) {
register_command('stdapi_net_resolve_host', COMMAND_ID_STDAPI_NET_RESOLVE_HOST);
function stdapi_net_resolve_host($req, &$pkt) {
my_print("doing stdapi_net_resolve_host");
$hostname = packet_get_tlv($req, TLV_TYPE_HOST_NAME)['value'];
$family = packet_get_tlv($req, TLV_TYPE_ADDR_TYPE)['value'];
if ($family == WIN_AF_INET) {
$family = AF_INET;
} elseif ($family == WIN_AF_INET6) {
$family = AF_INET6;
} else {
throw new Exception('invalid family');
}
$ret = ERROR_FAILURE;
$result = resolve_host($hostname, $family);
if ($result != NULL) {
$ret = ERROR_SUCCESS;
packet_add_tlv($pkt, create_tlv(TLV_TYPE_IP, $result['packed_address']));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_ADDR_TYPE, $result['family']));
}
return $ret;
}
}
if (!function_exists('stdapi_net_resolve_hosts')) {
register_command('stdapi_net_resolve_hosts', COMMAND_ID_STDAPI_NET_RESOLVE_HOSTS);
function stdapi_net_resolve_hosts($req, &$pkt) {
my_print("doing stdapi_net_resolve_hosts");
$family = packet_get_tlv($req, TLV_TYPE_ADDR_TYPE)['value'];
if ($family == WIN_AF_INET) {
$family = AF_INET;
} elseif ($family == WIN_AF_INET6) {
$family = AF_INET6;
} else {
throw new Exception('invalid family');
}
$hostname_tlvs = packet_get_all_tlvs($req, TLV_TYPE_HOST_NAME);
foreach ($hostname_tlvs as $hostname_tlv) {
$hostname = $hostname_tlv['value'];
$result = resolve_host($hostname, $family);
if ($result == NULL) {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_IP, ''));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_ADDR_TYPE, $family));
} else {
packet_add_tlv($pkt, create_tlv(TLV_TYPE_IP, $result['packed_address']));
packet_add_tlv($pkt, create_tlv(TLV_TYPE_ADDR_TYPE, $result['family']));
}
}
return ERROR_SUCCESS;
}
}
# END STDAPI # END STDAPI