Merge branch 'ent-4984-netflow-vulnerability' into 'develop'

Fixed netflow command injection vulnerability

See merge request artica/pandorafms!2933
This commit is contained in:
Daniel Rodriguez 2019-12-10 16:43:29 +01:00
commit 35298d754a
1 changed files with 86 additions and 87 deletions

View File

@ -890,7 +890,7 @@ function netflow_get_command($filter)
}
// Filter options.
$command .= netflow_get_filter_arguments($filter);
$command .= ' '.netflow_get_filter_arguments($filter);
return $command;
}
@ -909,114 +909,113 @@ function netflow_get_filter_arguments($filter)
$filter_args = '';
if ($filter['advanced_filter'] != '') {
$filter_args = preg_replace('/["\r\n]/', '', io_safe_output($filter['advanced_filter']));
return ' "('.$filter_args.')"';
}
} else {
if ($filter['router_ip'] != '') {
$filter_args .= ' (router ip '.$filter['router_ip'].')';
}
if ($filter['router_ip'] != '') {
$filter_args .= ' "(router ip '.$filter['router_ip'].')';
}
// Normal filter.
if ($filter['ip_dst'] != '') {
$filter_args .= ' (';
$val_ipdst = explode(',', io_safe_output($filter['ip_dst']));
for ($i = 0; $i < count($val_ipdst); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
}
// Normal filter.
if ($filter['ip_dst'] != '') {
$filter_args .= ' "(';
$val_ipdst = explode(',', io_safe_output($filter['ip_dst']));
for ($i = 0; $i < count($val_ipdst); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
if (netflow_is_net($val_ipdst[$i]) == 0) {
$filter_args .= 'dst ip '.$val_ipdst[$i];
} else {
$filter_args .= 'dst net '.$val_ipdst[$i];
}
}
if (netflow_is_net($val_ipdst[$i]) == 0) {
$filter_args .= 'dst ip '.$val_ipdst[$i];
$filter_args .= ')';
}
if ($filter['ip_src'] != '') {
if ($filter_args == '') {
$filter_args .= ' (';
} else {
$filter_args .= 'dst net '.$val_ipdst[$i];
}
}
$filter_args .= ')';
}
if ($filter['ip_src'] != '') {
if ($filter_args == '') {
$filter_args .= ' "(';
} else {
$filter_args .= ' and (';
}
$val_ipsrc = explode(',', io_safe_output($filter['ip_src']));
for ($i = 0; $i < count($val_ipsrc); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
$filter_args .= ' and (';
}
if (netflow_is_net($val_ipsrc[$i]) == 0) {
$filter_args .= 'src ip '.$val_ipsrc[$i];
$val_ipsrc = explode(',', io_safe_output($filter['ip_src']));
for ($i = 0; $i < count($val_ipsrc); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
}
if (netflow_is_net($val_ipsrc[$i]) == 0) {
$filter_args .= 'src ip '.$val_ipsrc[$i];
} else {
$filter_args .= 'src net '.$val_ipsrc[$i];
}
}
$filter_args .= ')';
}
if ($filter['dst_port'] != '') {
if ($filter_args == '') {
$filter_args .= ' (';
} else {
$filter_args .= 'src net '.$val_ipsrc[$i];
}
}
$filter_args .= ')';
}
if ($filter['dst_port'] != '') {
if ($filter_args == '') {
$filter_args .= ' "(';
} else {
$filter_args .= ' and (';
}
$val_dstport = explode(',', io_safe_output($filter['dst_port']));
for ($i = 0; $i < count($val_dstport); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
$filter_args .= ' and (';
}
$filter_args .= 'dst port '.$val_dstport[$i];
}
$val_dstport = explode(',', io_safe_output($filter['dst_port']));
for ($i = 0; $i < count($val_dstport); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
}
$filter_args .= ')';
}
if ($filter['src_port'] != '') {
if ($filter_args == '') {
$filter_args .= ' "(';
} else {
$filter_args .= ' and (';
}
$val_srcport = explode(',', io_safe_output($filter['src_port']));
for ($i = 0; $i < count($val_srcport); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
$filter_args .= 'dst port '.$val_dstport[$i];
}
$filter_args .= 'src port '.$val_srcport[$i];
$filter_args .= ')';
}
$filter_args .= ')';
}
if (isset($filter['proto']) && $filter['proto'] != '') {
if ($filter_args == '') {
$filter_args .= ' "(';
} else {
$filter_args .= ' and (';
}
$val_proto = explode(',', io_safe_output($filter['proto']));
for ($i = 0; $i < count($val_proto); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
if ($filter['src_port'] != '') {
if ($filter_args == '') {
$filter_args .= ' (';
} else {
$filter_args .= ' and (';
}
$filter_args .= 'proto '.$val_proto[$i];
$val_srcport = explode(',', io_safe_output($filter['src_port']));
for ($i = 0; $i < count($val_srcport); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
}
$filter_args .= 'src port '.$val_srcport[$i];
}
$filter_args .= ')';
}
$filter_args .= ')';
if (isset($filter['proto']) && $filter['proto'] != '') {
if ($filter_args == '') {
$filter_args .= ' (';
} else {
$filter_args .= ' and (';
}
$val_proto = explode(',', io_safe_output($filter['proto']));
for ($i = 0; $i < count($val_proto); $i++) {
if ($i > 0) {
$filter_args .= ' or ';
}
$filter_args .= 'proto '.$val_proto[$i];
}
$filter_args .= ')';
}
}
if ($filter_args != '') {
$filter_args .= '"';
$filter_args = escapeshellarg($filter_args);
}
return $filter_args;