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1077 lines (914 loc) · 39.8 KB
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<?php
/*******************************************************************************
** Basic Analysis and Security Engine (BASE)
** Copyright (C) 2004 BASE Project Team
** Copyright (C) 2000 Carnegie Mellon University
**
** (see the file 'base_main.php' for license details)
**
** Project Leads: Kevin Johnson <kjohnson@secureideas.net>
** Built upon work by Roman Danyliw <rdd@cert.org>, <roman@danyliw.com>
**
** Purpose: displays a single alert
**
** Input GET/POST variables
** - caller
** - submit:
********************************************************************************
** Authors:
********************************************************************************
** Kevin Johnson <kjohnson@secureideas.net
**
********************************************************************************
*/
include ("base_conf.php");
include ("$BASE_path/includes/base_constants.inc.php");
include ("$BASE_path/includes/base_include.inc.php");
include_once ("$BASE_path/base_db_common.php");
include_once ("$BASE_path/base_qry_common.php");
include_once ("$BASE_path/base_stat_common.php");
// Check role out and redirect if needed -- Kevin
$roleneeded = 10000;
$payload = FALSE;
$offset = 0;
$BUser = new BaseUser();
if (($BUser->hasRole($roleneeded) == 0) && ($Use_Auth_System == 1))
base_header("Location: ". $BASE_urlpath . "/index.php");
# set cookie for packet display
if (isset($_GET['asciiclean'])) {
1 == $_GET['asciiclean'] ? setcookie('asciiclean', 'clean') : setcookie('asciiclean', 'normal');
}
$sf_portscan_flag = 0;
function PrintCleanURL()
{
// This function creates the url to display the cleaned up payload -- Kevin
$query = CleanVariable($_SERVER["QUERY_STRING"], VAR_PERIOD | VAR_DIGIT | VAR_PUNC | VAR_LETTER);
$sort_order=ImportHTTPVar("sort_order", VAR_LETTER | VAR_USCORE);
if ( (isset($_GET['asciiclean']) && $_GET['asciiclean'] == 1) || ( isset($_COOKIE['asciiclean']) && ($_COOKIE['asciiclean'] == "clean") && (!isset($_GET['asciiclean'])) ) )
{
//create link to non-cleaned payload display
$url = '<center><a href="base_qry_alert.php?' . $query;
$url.= '&sort_order='.urlencode($sort_order).'&asciiclean=0">'._QANORMALD.'</a></center>';
return $url;
}
else
{
//create link to cleaned payload display
$url = '<center><a href="base_qry_alert.php?' . $query;
$url.= '&sort_order='.urlencode($sort_order).'&asciiclean=1">'._QAPLAIND.'</a></center>';
return $url;
}
}
function PrintBinDownload($db, $cid, $sid){
// Offering a URL to a download possibility:
$query = CleanVariable($_SERVER["QUERY_STRING"], VAR_PERIOD | VAR_DIGIT | VAR_PUNC | VAR_LETTER);
if ( isset($_GET['asciiclean']) && ($_GET['asciiclean'] == 1) || ( (isset($_COOKIE['asciiclean']) && $_COOKIE['asciiclean'] == "clean") && (!isset($_GET['asciiclean'])) ) ){
$url = '<center><a href="base_payload.php?' . $query;
$url.= '&download=1&cid='.urlencode($cid).'&sid='.urlencode($sid).'&asciiclean=1">Download of Payload</a></center>';
} else {
$url = '<center><a href="base_payload.php?' . $query;
$url.= '&download=1&cid='.urlencode($cid).'&sid='.urlencode($sid).'&asciiclean=0">Download of Payload</a></center>';
}
return $url;
}
function PrintPcapDownload($db, $cid, $sid)
{
if (!isset($db))
{
error_log("ERROR: \$db is NOT set.");
ErrorMessage(__FILE__ . ":" . __LINE__ . ": db is NOT set. Ignoring.");
$debug_str = "<BR><PRE>\n\n" . debug_print_backtrace() . "\n\n</PRE><BR>\n";
ErrorMessage($debug_str);
}
if (!isset($db->DB))
{
error_log("ERROR: \$db->DB is NOT set.");
ErrorMessage(__FILE__ . ":" . __LINE__ . ": db->DB is NOT set. Ignoring.");
$debug_str = "<BR><PRE>\n\n" . debug_print_backtrace() . "\n\n</PRE><BR>\n";
ErrorMessage($debug_str);
}
if (!is_array($db->DB->MetaColumnNames('data')))
{
error_log("ERROR: \$db->DB->MetaColumnNames('data') is NOT an array.");
ErrorMessage(__FILE__ . ":" . __LINE__ . ": db->DB->MetaColumnNames('data') is NOT an array. Ignoring.");
print "<BR><PRE>\n\n";
debug_print_backtrace();
print "\n\n" ;
var_dump($db->DB->MetaColumnNames('data'));
print "</PRE><BR>\n\n" ;
}
if ( !in_array("pcap_header", $db->DB->MetaColumnNames('data')) ||
!in_array("data_header", $db->DB->MetaColumnNames('data'))) {
$type = 3;
} else {
$type = 2;
}
$query = CleanVariable($_SERVER["QUERY_STRING"], VAR_PERIOD | VAR_DIGIT | VAR_PUNC | VAR_LETTER);
if ( (isset($_GET['asciiclean']) && $_GET['asciiclean'] == 1) || ( isset($_COOKIE['asciiclean']) && ($_COOKIE["asciiclean"] == "clean") && (!isset($_GET['asciiclean'])) ) ){
$url = '<center><a href="base_payload.php?' . $query;
$url.= '&download='.urlencode($type).'&cid='.urlencode($cid).'&sid='.urlencode($sid).'&asciiclean=1">Download in pcap format</a></center>';
} else {
$url = '<center><a href="base_payload.php?' . $query;
$url.= '&download='.urlencode($type).'&cid='.urlencode($cid).'&sid='.urlencode($sid).'&asciiclean=0">Download in pcap format</a></center>';
}
return $url;
}
function PrintPacketLookupBrowseButtons($seq, $save_sql, $db, &$previous_button, &$next_button)
{
$sf_portscan_flag = 0;
echo "\n\n<!-- Single Alert Browsing Buttons -->\n";
$result2 = $db->baseExecute($save_sql);
if ( $seq == 0 )
$previous_button = '[ '._FIRST.' ]'."\n";
$i = 0;
while ($i <= $seq+1 )
{
$myrow2 = $result2->baseFetchRow();
if ( $myrow2 == "" )
$next_button = '[ '._LAST.' ]'."\n";
else if ( $i == $seq-1 ) {
$previous_button = '<INPUT TYPE="submit" NAME="submit" VALUE="<< '._PREVIOUS.' #';
$previous_button.= ($seq-1).'-('.$myrow2[0].'-'.$myrow2[1].')">'."\n";
}
else if ( $i == $seq+1 ) {
$next_button = '<INPUT TYPE="submit" NAME="submit" VALUE=">> '._NEXT.' #';
$next_button.= ($seq+1).'-('.$myrow2[0].'-'.$myrow2[1].')">'."\n";
}
$i++;
}
$result2->baseFreeRows();
}
/*
* Need to import $submit and set the $QUERY_STRING early to support
* the back button. Otherwise, the value of $submit will not be passed
* to the history.
*/
/* This call can include "#xx-(xx-xx)" values and "submit" values. */
$submit = ImportHTTPVar("submit", VAR_DIGIT | VAR_PUNC | VAR_LETTER, array(_SELECTED, _ALLONSCREEN, _ENTIREQUERY));
$_SERVER["QUERY_STRING"] = "submit=".rawurlencode($submit);
$et = new EventTiming($debug_time_mode);
$cs = new CriteriaState("base_qry_main.php", "&new=1&submit="._QUERYDBP);
$cs->ReadState();
$qs = new QueryState();
$page_title = _ALERT;
PrintBASESubHeader($page_title, $page_title, $cs->GetBackLink(), $refresh_all_pages);
/* Connect to the Alert database */
$db = NewBASEDBConnection($DBlib_path, $DBtype);
$db->baseDBConnect($db_connect_method,
$alert_dbname, $alert_host, $alert_port, $alert_user, $alert_password);
PrintCriteria("");
$criteria_clauses = ProcessCriteria();
$from = " FROM acid_event ".$criteria_clauses[0];
$where = " WHERE ".$criteria_clauses[1];
$qs->AddValidAction("ag_by_id");
$qs->AddValidAction("ag_by_name");
$qs->AddValidAction("add_new_ag");
$qs->AddValidAction("del_alert");
$qs->AddValidAction("email_alert");
$qs->AddValidAction("email_alert2");
$qs->AddValidAction("archive_alert");
$qs->AddValidAction("archive_alert2");
$qs->AddValidActionOp(_SELECTED);
$qs->SetActionSQL($from.$where);
$et->Mark("Initialization");
$qs->RunAction($submit, PAGE_ALERT_DISPLAY, $db);
$et->Mark("Alert Action");
/* If get a valid (sid,cid) store it in $caller.
* But if $submit is returning from an alert action
* get the (sid,cid) back from $caller
*/
if ( $submit == _SELECTED )
$submit = ImportHTTPVar("caller", VAR_DIGIT | VAR_PUNC);
else
$caller = $submit;
/* Setup the Query Results Table -- However, this data structure is not
* really used for output. Rather, it duplicates the sort SQL set in
* base_qry_sqlcalls.php
*/
$qro = new QueryResultsOutput("");
$qro->AddTitle("Signature",
"sig_a", " ", " ORDER BY sig_name ASC",
"sig_d", " ", " ORDER BY sig_name DESC");
$qro->AddTitle("Timestamp",
"time_a", " ", " ORDER BY timestamp ASC ",
"time_d", " ", " ORDER BY timestamp DESC ");
$qro->AddTitle("Source<BR>Address",
"sip_a", " ", " ORDER BY ip_src ASC",
"sip_d", " ", " ORDER BY ip_src DESC");
$qro->AddTitle("Dest.<BR>Address",
"dip_a", " ", " ORDER BY ip_dst ASC",
"dip_d", " ", " ORDER BY ip_dst DESC");
$qro->AddTitle("Layer 4<BR>Proto",
"proto_a", " ", " ORDER BY layer4_proto ASC",
"proto_d", " ", " ORDER BY layer4_proto DESC");
$sort_sql = $qro->GetSortSQL($qs->GetCurrentSort(), "");
$save_sql = "SELECT acid_event.sid, acid_event.cid".$sort_sql[0].
$from.$where.$sort_sql[1];
if ( $event_cache_auto_update == 1 ) UpdateAlertCache($db);
GetQueryResultID($submit, $seq, $sid, $cid);
if ( $debug_mode > 0 )
echo "\n====== Alert Lookup =======<BR>
sid = $sid<BR>
cid = $cid<BR>
seq = $seq<BR>\n".
"===========================<BR>\n";
/* Verify that have extracted (sid, cid) correctly */
if ( !($sid > 0 && $cid > 0) )
{
ErrorMessage(_QAINVPAIR." (".$sid.",".$cid.")");
exit();
}
echo "<FORM METHOD=\"GET\" ACTION=\"base_qry_alert.php\">\n";
PrintPacketLookupBrowseButtons($seq, $save_sql, $db, $previous, $next);
echo "<CENTER>\n<B>"._ALERT." #".($seq)."</B><BR>\n$previous    \n$next\n</CENTER>\n";
echo "<HR>\n";
/* Make Selected */
echo "\n<INPUT TYPE=\"hidden\" NAME=\"action_chk_lst[0]\" VALUE=\"$submit\">\n";
/* Event */
$sql2 = "SELECT signature, timestamp FROM acid_event WHERE sid='".filterSql($sid)."' AND cid='".filterSql($cid)."'";
if ($debug_mode > 0)
{
print "<BR><BR>\n\n" . __FILE__ . ":" . __LINE__ . ": DEBUG: \$sql2 = \"$sql2\"<BR><BR>\n\n";
}
$result2 = $db->baseExecute($sql2);
$myrow2 = $result2->baseFetchRow();
if ( $myrow2[0] == "" )
{
echo '<CENTER><B>';
ErrorMessage(_QAALERTDELET);
echo '</CENTER></B>';
}
/* Get sensor parameters: */
$sql4 = "SELECT hostname, interface, filter, encoding, detail FROM sensor WHERE sid='".filterSql($sid)."'";
$result4 = $db->baseExecute($sql4);
$myrow4 = $result4->baseFetchRow();
$result4->baseFreeRows();
$encoding = $myrow4[3];
$detail = $myrow4[4];
echo '
<BLOCKQUOTE>
<TABLE BORDER=1 width="90%">
<TR><TD CLASS="metatitle" WIDTH=50 ALIGN=CENTER ROWSPAN=4>Meta
<TD>
<TABLE BORDER=1 CELLPADDING=4>
<TR><TD CLASS="plfieldhdr" >'._ID.' #</TD>
<TD CLASS="plfieldhdr">'._CHRTTIME.'</TD>
<TD CLASS="plfieldhdr">'._QATRIGGERSIG.'</TD></TR>
<TR><TD CLASS="plfield">'.($sid." - ".$cid).'</TD>
<TD CLASS="plfield">'.htmlspecialchars($myrow2[1]).'</TD>
<TD CLASS="plfield">'.(GetTagTriger(BuildSigByID($myrow2[0], $db), $db, $sid, $cid)).'</TD></TR>
</TABLE>
</TD>
</TR>';
echo ' <TR>
<TD>
<TABLE BORDER=1 CELLPADDING=4>
<TR><TD CLASS="metatitle" ALIGN=CENTER ROWSPAN=2>'._SENSOR.'</TD>
<TD class="plfieldhdr">',_SENSOR.' '._ADDRESS,'</TD>
<TD class="plfieldhdr">'._INTERFACE.'</TD>
<TD class="plfieldhdr">'._FILTER.'</TD>
</TR>
<TR><TD class="plfield">'.htmlspecialchars($myrow4[0]).'</TD>
<TD class="plfield">'.
( ($myrow4[1] == "") ? " <I>"._NONE."</I> " : $myrow4[1] ).'</TD>
<TD class="plfield">'.
( ($myrow4[2] == "") ? " <I>"._NONE."</I> " : $myrow4[2] ).'</TD>
</TR>
</TABLE>
</TR>';
if ( $resolve_IP == 1 )
{
echo ' <TR>
<TD>
<TABLE BORDER=1 CELLPADDING=4>
<TR><TD CLASS="iptitle" ALIGN=CENTER ROWSPAN=2>FQDN</TD>
<TD class="plfieldhdr">'._SENSOR.' '._NAME.'</TD>
</TR>
<TR><TD class="plfield">';
# Is this a dotted IPv4 address?
$pattern = '/(\d{1,3}\.){3}\d{1,3}/';
if (preg_match($pattern, $myrow4[0]))
{
echo baseGetHostByAddr($myrow4[0], $db, $dns_cache_lifetime);
}
else
{
echo $myrow4[0];
}
echo ' </TD>
</TR>
</TABLE>
</TR>';
}
$result4->baseFreeRows();
$sql4 = "SELECT acid_ag_alert.ag_id, ag_name, ag_desc ".
"FROM acid_ag_alert LEFT JOIN acid_ag ON acid_ag_alert.ag_id = acid_ag.ag_id ".
"WHERE ag_sid='".$sid."' AND ag_cid='".$cid."'";
$result4 = $db->baseExecute($sql4);
$num = $result4->baseRecordCount();
echo ' <TR>
<TD>
<TABLE BORDER=1 CELLPADDING=4>
<TR><TD CLASS="metatitle" ALIGN=CENTER ROWSPAN='.($num+1).'>'._ALERTGROUP.'</TD>';
if ( $num > 0 )
echo ' <TD class="plfieldhdr">'._ID.'</TD>
<TD class="plfieldhdr">'._NAME.'</TD>
<TD class="plfieldhdr">'._DESC.'</TD></TR>';
else
echo ' <TD> <I>'._NONE.'</I> </TD></TR>';
for ($i = 0; $i < $num; $i++)
{
$myrow4 = $result4->baseFetchRow();
echo ' <TR><TD class="plfield">'.htmlspecialchars($myrow4[0]).'</TD>
<TD class="plfield">'.htmlspecialchars($myrow4[1]).'</TD>
<TD class="plfield">'.htmlspecialchars($myrow4[2]).'</TD>
</TR>';
}
echo ' </TABLE>';
$result4->baseFreeRows();
echo ' </TR>
</TABLE>';
$result2->baseFreeRows();
/* IP */
$sql2 = "SELECT ip_src, ip_dst, ".
"ip_ver, ip_hlen, ip_tos, ip_len, ip_id, ip_flags, ip_off, ip_ttl, ip_csum, ip_proto".
" FROM iphdr WHERE sid='".$sid."' AND cid='".$cid."'";
$result2 = $db->baseExecute($sql2);
$myrow2 = $result2->baseFetchRow();
$layer4_proto = -1;
if ( $myrow2[0] != "" )
{
$sql3 = "SELECT * FROM opt WHERE sid='".$sid."' AND cid='".$cid."' AND opt_proto='0'";
$result3 = $db->baseExecute($sql3);
$num_opt = $result3->baseRecordCount();
echo '
<TABLE BORDER=1 WIDTH="90%">
<TR><TD CLASS="iptitle" WIDTH=50 ROWSPAN=3 ALIGN=CENTER>IP';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=2>';
echo ' <TR><TD class="plfieldhdr">'._NBSOURCEADDR.'</TD>
<TD class="plfieldhdr"> '._NBDESTADDR.' </TD>
<TD class="plfieldhdr">Ver</TD>
<TD class="plfieldhdr">Hdr Len</TD>
<TD class="plfieldhdr">TOS</TD>
<TD class="plfieldhdr">'._LENGTH.'</TD>
<TD class="plfieldhdr">'._ID.'</TD>
<TD class="plfieldhdr">fragment</TD>
<TD class="plfieldhdr">offset</TD>
<TD class="plfieldhdr">TTL</TD>
<TD class="plfieldhdr">chksum</TD></TR>';
echo ' <TR><TD class="plfield">
<A HREF="base_stat_ipaddr.php?ip='.baseLong2IP($myrow2[0]).'&netmask=32">'.
baseLong2IP($myrow2[0]).'</A></TD>';
echo ' <TD class="plfield">
<A HREF="base_stat_ipaddr.php?ip='.baseLong2IP($myrow2[1]).'&netmask=32">'.
baseLong2IP($myrow2[1]).'</A></TD>';
echo ' <TD class="plfield">'.htmlspecialchars($myrow2[2]).'</TD>';
echo ' <TD class="plfield">'.($myrow2[3] << 2).'</TD>'; /* ihl is in 32 bit words, must be multiplied by 4 to show in bytes */
echo ' <TD class="plfield">'.htmlspecialchars($myrow2[4]).'</TD>';
echo ' <TD class="plfield">'.htmlspecialchars($myrow2[5]).'</TD>';
echo ' <TD class="plfield">'.htmlspecialchars($myrow2[6]).'</TD>';
echo ' <TD class="plfield">';
if ($myrow2[7] == 1)
echo 'yes';
else
echo 'no';
echo '</TD>';
list( , $my_offset, ) = unpack("n", pack("S", $myrow2[8]));
echo ' <TD class="plfield">'. ($my_offset * 8) .'</TD>';
echo ' <TD class="plfield">'.htmlspecialchars($myrow2[9]).'</TD>';
echo ' <TD class="plfield">'.htmlspecialchars($myrow2[10]).'<BR>= 0x'.dechex($myrow2[10]).'</TD></TR>';
echo ' </TABLE>';
if ( $resolve_IP == 1 )
{
echo ' <TR>
<TD>
<TABLE BORDER=1 CELLPADDING=4>
<TR><TD CLASS="iptitle" ALIGN=CENTER ROWSPAN=2>FQDN</TD>
<TD class="plfieldhdr">'._SOURCENAME.'</TD>
<TD class="plfieldhdr">'._DESTNAME.'</TD>
</TR>
<TR><TD class="plfield">'.
(baseGetHostByAddr(baseLong2IP($myrow2[0]),
$db, $dns_cache_lifetime)).'</TD>
<TD class="plfield">'.
(baseGetHostByAddr(baseLong2IP($myrow2[1]),
$db, $dns_cache_lifetime)).'</TD>
</TR>
</TABLE>
</TR>';
}
echo ' <TR>';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=4>';
echo ' <TR><TD CLASS="iptitle" ALIGN=CENTER ROWSPAN='.(($num_opt != 0) ? ($num_opt+1) : 1).'>'._OPTIONS.'</TD>';
$layer4_proto = $myrow2[11];
if ( $num_opt > 0 )
{
echo ' <TD></TD>
<TD class="plfieldhdr">'._CODE.'</TD>
<TD class="plfieldhdr">'._LENGTH.'</TD>
<TD class="plfieldhdr" ALIGN=CENTER>'._DATA.'</TD>';
for ( $i = 0; $i < $num_opt; $i++)
{
$myrow3 = $result3->baseFetchRow();
echo ' <TR><TD>#'.($i+1).'</TD>';
echo ' <TD class="plfield">'.IPOption2str($myrow3[4]).'</TD>';
echo ' <TD class="plfield">'.htmlspecialchars($myrow3[5]).'</TD>';
echo ' <TD class="plfield">';
if ($myrow3[6] != "" )
echo $myrow3[6];
else
echo ' ';
echo '</TD></TR>';
}
}
else
{
echo ' <TD>     <I>'._NONE.' </I></TD></TR>';
}
echo ' </TABLE></TD></TR>';
echo '</TABLE>';
$result3->baseFreeRows();
}
$result2->baseFreeRows();
/* If we have FLoP's (Fast Logging Project for Snort) extended
* database schema then we can show mac addresses from `data_header`
* field from `data` table
*/
if (!isset($db))
{
error_log("ERROR: \$db is NOT set.");
ErrorMessage(__FILE__ . ":" . __LINE__ . ": db is NOT set. Ignoring.");
$debug_str = "<BR><PRE>\n\n" . debug_print_backtrace() . "\n\n</PRE><BR>\n";
ErrorMessage($debug_str);
}
if (!isset($db->DB))
{
error_log("ERROR: \$db->DB is NOT set.");
ErrorMessage(__FILE__ . ":" . __LINE__ . ": db->DB is NOT set. Ignoring.");
$debug_str = "<BR><PRE>\n\n" . debug_print_backtrace() . "\n\n</PRE><BR>\n";
ErrorMessage($debug_str);
}
if (!is_array($db->DB->MetaColumnNames('data')))
{
error_log("ERROR: \$db->DB->MetaColumnNames('data') is NOT an array.");
ErrorMessage(__FILE__ . ":" . __LINE__ . ": db->DB->MetaColumnNames('data') is NOT an array. Ignoring.");
print "<BR><PRE>\n\n";
debug_print_backtrace();
print "\n\n" ;
var_dump($db->DB->MetaColumnNames('data'));
print "</PRE><BR>\n\n" ;
}
if (in_array("data_header", $db->DB->MetaColumnNames('data'))) {
$sql5 = "SELECT data_header FROM data WHERE sid='$sid' AND cid='$cid'";
$result5 = $db->baseExecute($sql5);
$myrow5 = $result5->baseFetchRow();
$result5->baseFreeRows();
if (is_array($myrow5))
{
if ( $debug_mode > 0 ) {
echo "<debug><BR>";
echo "Encoding: $encoding<BR>";
echo "Data header: <$myrow5[0]><BR>";
echo "strlen: " . strlen($myrow5[0]);
echo "<br>Base64 decoded: <" . base64_decode($myrow5[0]) . "><BR>";
echo "strlen: " . strlen(base64_decode($myrow5[0]));
echo "<br>bin2hex: <" . bin2hex(base64_decode($myrow5[0])) . "><BR>";
echo "strlen: " . strlen(bin2hex(base64_decode($myrow5[0])));
echo "<BR></debug><BR>";
}
/* 0 == hex, 1 == base64, 2 == ascii; cf. snort-2.4.4/src/plugbase.h */
if ($encoding == 0) {
$t = $myrow5[0];
} elseif ($encoding == 1) {
$t = bin2hex(base64_decode($myrow5[0]));
} else {
echo "<BR><BR>This type of encoding is not supported. Please use either hex oder ";
echo "base64 encoding. Do not use ascii, because ascii encoding loses data.<BR><BR>";
}
/* from here on $t is in hex format, even if original encoding was base64 */
/* "MACDAD" (ascii code in hex: 4d 41 43 44 41 44) is a key word used by
* sfPortscan, rather than a real MAC address; cf.
* snort-2.6.0/doc/README.sfportscan
* snort-2.6.0/src/preprocessors/spp_sfportscan.c
* snort-2.6.0/src/preprocessors/flow/portscan/flowps_snort.c */
if ( strlen($t) >= 24 && strncmp($t, '4d41434441444d4143444144', 24) != 0)
{
$dst_mac = $t[0].$t[1].':'.$t[2].$t[3].':'.$t[4].$t[5].':'.$t[6].$t[7].':'.$t[8].$t[9].':'.$t[10].$t[11];
$src_mac = $t[12].$t[13].':'.$t[14].$t[15].':'.$t[16].$t[17].':'.$t[18].$t[19].':'.$t[20].$t[21].':'.$t[22].$t[23];
echo '
<TABLE BORDER=1 WIDTH="90%">
<TR><TD CLASS="iptitle" WIDTH=50 ROWSPAN=3 ALIGN=CENTER>MAC';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=2>';
echo ' <TR><TD class="plfieldhdr">'._NBSOURCEADDR.'</TD>
<TD class="plfieldhdr"> '._NBDESTADDR.' </TD></TR>
<TR><TD>'. $src_mac .'</TD>
<TD>'. $dst_mac .'</TD></TR>
<TR><TD>'. GetVendor($src_mac) .'</TD>
<TD>'. GetVendor($dst_mac) .'</TD></TR>';
echo ' </TABLE>';
echo '</TABLE></TD></TR>';
}
else
{
/* "MACDAD" indicates that this is an sfportscan packet. This means
the database does NOT contain a real packet. Therefore
building a pcap file won't be possible. */
$sf_portscan_flag = 1;
}
}
}
/* TCP */
if ( $layer4_proto == "6" )
{
$sql2 = "SELECT tcp_sport, tcp_dport, tcp_seq, tcp_ack, tcp_off, tcp_res, tcp_flags, tcp_win, ".
" tcp_csum, tcp_urp FROM tcphdr WHERE sid='".$sid."' AND cid='".$cid."'";
$result2 = $db->baseExecute($sql2);
$myrow2 = $result2->baseFetchRow();
$sql3 = "SELECT * FROM opt WHERE sid='".$sid."' AND cid='".$cid."' AND opt_proto='6'";
$result3 = $db->baseExecute($sql3);
$num_opt = $result3->baseRecordCount();
echo '
<TABLE BORDER=1 WIDTH="90%">
<TR><TD CLASS="layer4title" WIDTH=50 ROWSPAN=2 ALIGN=CENTER>TCP';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=2>';
echo ' <TR><TD class="plfieldhdr">'._SHORTSOURCE.'<BR> '._PORT.'</TD>
<TD class="plfieldhdr"> '._SHORTDEST.'<BR>   '._PORT.'  </TD>
<TD class="plfieldhdr">R<BR>1</TD>
<TD class="plfieldhdr">R<BR>0</TD>
<TD class="plfieldhdr">U<BR>R<BR>G</TD>
<TD class="plfieldhdr">A<BR>C<BR>K</TD>
<TD class="plfieldhdr">P<BR>S<BR>H</TD>
<TD class="plfieldhdr">R<BR>S<BR>T</TD>
<TD class="plfieldhdr">S<BR>Y<BR>N</TD>
<TD class="plfieldhdr">F<BR>I<BR>N</TD>
<TD class="plfieldhdr">seq #</TD>
<TD class="plfieldhdr">ack</TD>
<TD class="plfieldhdr">offset</TD>
<TD class="plfieldhdr">res</TD>
<TD class="plfieldhdr">window</TD>
<TD class="plfieldhdr">urp</TD>
<TD class="plfieldhdr">chksum</TD></TR>';
$src_port = $myrow2[0].'<BR>';
foreach ($external_port_link as $name => $baseurl) {
$src_port = $src_port.'[<A HREF="'.$baseurl.$myrow2[0].'" TARGET="_ACID_PORT_">'.$name.'</A>] ';
}
$dst_port = $myrow2[1].'<BR>';
foreach ($external_port_link as $name => $baseurl) {
$dst_port = $dst_port.'[<A HREF="'.$baseurl.$myrow2[1].'" TARGET="_ACID_PORT_">'.$name.'</A>] ';
}
echo ' <TR><TD class="plfield">'.$src_port.'</TD>';
echo ' <TD class="plfield">'.$dst_port.'</TD>';
echo ' <TD class="plfield">';
if ( ($myrow2[6] & 128) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 64 ) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 32) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 16 ) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 8) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 4 ) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 2 ) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD><TD class="plfield">';
if ( ($myrow2[6] & 1 ) != 0 )
echo 'X';
else
echo ' ';
echo ' </TD>';
echo ' <TD class="plfield">'.$myrow2[2].'</TD>';
echo ' <TD class="plfield">'.$myrow2[3].'</TD>';
/* data offset is in 32 bit words, cf. RFC 793, 3.1 (= p. 16),
* PrintTCPHeader() in snort-2.6.0/src/log.c
* DecodeTCP() in snort-2.6.0/src/decode.c
* #define TCP_OFFSET(tcph) in snort-2.6.0/src/decode.h
* Database() in snort-2.6.0/src/output-plugins/spo_database.c */
echo ' <TD class="plfield">'. ($myrow2[4] << 2) .'</TD>';
echo ' <TD class="plfield">'.$myrow2[5].'</TD>';
echo ' <TD class="plfield">'.$myrow2[7].'</TD>';
echo ' <TD class="plfield">'.$myrow2[9].'</TD>';
echo ' <TD class="plfield">'.$myrow2[8].'<BR>=<BR>0x'.dechex($myrow2[8]).'</TD></TR>';
echo ' </TABLE></TR>';
echo ' <TR>';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=4>';
echo ' <TR><TD CLASS="layer4title" ALIGN=CENTER ROWSPAN='.(($num_opt != 0) ? ($num_opt+1) : 1).'>'._OPTIONS.'</TD>';
if ( $num_opt != 0)
{
echo ' <TD></TD>
<TD class="plfieldhdr">'._CODE.'</TD>
<TD class="plfieldhdr">'._LENGTH.'</TD>
<TD class="plfieldhdr">'._DATA.'</TD>';
/* Check which kind of encoding is used: */
$sql4 = 'SELECT encoding FROM sensor WHERE sid='.$sid;
$result4 = $db->baseExecute($sql4);
$myrow4 = $result4->baseFetchRow();
$result4->baseFreeRows();
for ( $i = 0; $i < $num_opt; $i++)
{
$myrow3 = $result3->baseFetchRow();
echo ' <TR><TD class="plfield">#'.($i+1).'</TD>';
echo ' <TD class="plfield">'.TCPOption2str($myrow3[4]).'</TD>';
echo ' <TD class="plfield">'.$myrow3[5].'</TD>';
echo ' <TD class="plfield">';
if ($myrow4[0] == 1)
/* base64 encoding */
{
if ($myrow3[5] > 0)
{
$mystr = bin2hex(base64_decode($myrow3[6]));
for ($j = 0; $j < $myrow3[5] * 2; $j = $j + 2)
{
echo $mystr[$j];
echo $mystr[$j + 1];
echo ' ';
}
echo '<BR>';
if (TCPOption2str($myrow3[4]) == "(8) TS")
/* timestamp: cf. RFC 1323, 3.2 */
{
/* TSval */
$tmpstr = "";
for ($j = 0; $j < 8; $j++)
{
$tmpstr = $tmpstr . $mystr[$j];
}
$TSval = hexdec($tmpstr);
echo ' TSval: ' . $TSval . '<BR>';
/* TSecr */
$tmpstr = "";
for ($j = 8; $j < 16; $j++)
{
$tmpstr = $tmpstr . $mystr[$j];
}
$TSecr = hexdec($tmpstr);
echo ' TSecr: ' . $TSecr . '<BR>';
}
echo ' </TD></TR>';
}
else
{
echo '{No data}</TD></TR>';
}
}
else
{
/* hexadecimal encoding (and ASCII) */
if ($myrow3[6] != "" )
echo $myrow3[6];
else
echo ' ';
echo '</TD></TR>';
}
}
}
else
{
echo ' <TD class="plfield"> <I>'._NONE.' </I></TD></TR>';
}
echo ' </TABLE></TD></TR>';
echo '</TABLE>';
$result2->baseFreeRows();
$result3->baseFreeRows();
}
/* UDP */
if ( $layer4_proto == "17" )
{
$sql2 = "SELECT * FROM udphdr WHERE sid='".$sid."' AND cid='".$cid."'";
$result2 = $db->baseExecute($sql2);
$myrow2 = $result2->baseFetchRow();
echo '
<TABLE BORDER=1 WIDTH="90%">
<TR><TD CLASS="layer4title" WIDTH=50 ROWSPAN=2 ALIGN=CENTER>UDP</TD>';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=2>';
echo ' <TR><TD class="plfieldhdr">'._SOURCEPORT.'</TD>
<TD class="plfieldhdr">'._DESTPORT.'</TD>
<TD class="plfieldhdr">'._LENGTH.'</TD></TR>';
$src_port = $myrow2[2].'<BR>';
foreach ($external_port_link as $name => $baseurl) {
$src_port = $src_port.'[<A HREF="'.$baseurl.$myrow2[2].'" TARGET="_ACID_PORT_">'.$name.'</A>] ';
}
$dst_port = $myrow2[3].'<BR>';
foreach ($external_port_link as $name => $baseurl) {
$dst_port = $dst_port.'[<A HREF="'.$baseurl.$myrow2[3].'" TARGET="_ACID_PORT_">'.$name.'</A>] ';
}
echo ' <TR><TD class="plfield">'.$src_port.'</TD>';
echo ' <TD class="plfield">'.$dst_port.'</TD>';
echo ' <TD class="plfield">'.$myrow2[4].'</TD></TR>';
echo ' </TABLE></TD></TR>';
echo '</TABLE>';
$result2->baseFreeRows();
}
/* ICMP */
if ( $layer4_proto == "1" )
{
$sql2 = "SELECT icmp_type, icmp_code, icmp_csum, icmp_id, icmp_seq FROM icmphdr ".
"WHERE sid='".$sid."' AND cid='".$cid."'";
$result2 = $db->baseExecute($sql2);
$myrow2 = $result2->baseFetchRow();
$ICMPitype = $myrow2[0];
$ICMPicode = $myrow2[1];
echo '
<TABLE BORDER=1 WIDTH="90%">
<TR><TD class="layer4title" WIDTH=50 ROWSPAN=2 ALIGN=CENTER>ICMP';
echo ' <TD>';
echo ' <TABLE BORDER=1 CELLPADDING=2>';
echo ' <TR><TD class="plfieldhdr">'._TYPE.'</TD>
<TD class="plfieldhdr">'._CODE.'</TD>
<TD class="plfieldhdr">checksum</TD>';
if ($ICMPitype == "5") {
echo ' <TD class="plfieldhdr">gateway address</TD>';
echo ' <TD class="plfieldhdr">gateway hostname</TD>';
} else {
echo ' <TD class="plfieldhdr">'._ID.'</TD>
<TD class="plfieldhdr">seq #</TD>';
}
echo ' </TR>';
echo ' <TR><TD class="plfield">('.$myrow2[0].') '.ICMPType2str($myrow2[0]).'</TD>';
echo ' <TD class="plfield">('.$myrow2[1].') '.ICMPCode2str($myrow2[0],$myrow2[1]).'</TD>';
echo ' <TD class="plfield">'.$myrow2[2].'<BR>=<BR>0x'. dechex($myrow2[2]) .'</TD>';
if ($ICMPitype == "5") {
$gateway_numeric_ip = (integer)($myrow2[3] / 256) . "." . ($myrow2[3] % 256) . ".". (integer)($myrow2[4] / 256) . "." . ($myrow2[4] % 256);
$gateway_hostname = basegetHostByAddr($gateway_numeric_ip, $db, $dns_cache_lifetime);
echo ' <TD class="plfield"><A HREF="base_stat_ipaddr.php?ip=' . $gateway_numeric_ip . '&netmask=32" TARGET="_PL_SIP">' . $gateway_numeric_ip . '</A></TD>';
echo ' <TD class="plfield">' . $gateway_hostname . '</TD>';
} else {
echo ' <TD class="plfield">'.$myrow2[3].'</TD>';
echo ' <TD class="plfield">'.$myrow2[4].'</TD>';
}
echo ' </TR>';
echo ' </TABLE>';
echo '</TABLE>';
$result2->baseFreeRows();
}
/* Print the Payload */
$sql2 = "SELECT data_payload FROM data WHERE sid='".$sid."' AND cid='".$cid."'";
$result2 = $db->baseExecute($sql2);
$myrow2 = $result2->baseFetchRow();
$result2->baseFreeRows();
!empty($myrow2) ? $payload = $myrow2[0] : '';
echo '
<TABLE BORDER=1 WIDTH="90%">
<TR><TD class="payloadtitle" WIDTH=50 ROWSPAN=2 ALIGN=CENTER>Payload';
echo("<br><br>".PrintCleanURL());
echo("<br>".PrintBinDownload($db, $cid, $sid));
if ($sf_portscan_flag != 1)
{
echo("<br>".PrintPcapDownload($db, $cid, $sid));
}
else
{
echo "<br>(Download in pcap format is NOT possible with portscan data)";
}
echo ' <TD>';
if ( $payload )
{
/* print the packet based on encoding type */
PrintPacketPayload($payload, $encoding, 1);
if ( $layer4_proto == "1" )
{
if ( /* IF ICMP source quench */
($ICMPitype == "4" && $ICMPicode == "0") ||
/* IF ICMP redirect */
($ICMPitype == "5") ||
/* IF ICMP parameter problem */
($ICMPitype == "12" && $ICMPicode == "0") ||
/* IF ( network, host, port unreachable OR
frag needed OR network admin prohibited OR filtered) */
($ICMPitype == "3" || $ICMPitype == "11" ) &&
$ICMPicode == "0" || $ICMPicode == "1" ||
$ICMPicode == "3" || $ICMPicode == "4" ||
$ICMPicode == "9" || $ICMPicode == "13" )
{
/* 0 == hex, 1 == base64, 2 == ascii; cf. snort-2.4.4/src/plugbase.h */
if ($encoding == 1) {
/* encoding is base64 */
$work = bin2hex(base64_decode(str_replace("\n","",$payload)));
} else {
/* assuming that encoding is hex */
$work = str_replace("\n","",$payload);
}
/*
* - depending on how the packet logged, 32-bits of NULL padding after
* the checksum may still be present.
*/
if ( substr($work, 0, 8) == "00000000" ) {
$offset = 8;
}
/* for dest. unreachable, frag needed and DF bit set indent the padding
* of MTU of next hop
*/
else if ( ($ICMPitype == "3") && ($ICMPicode == "4") ) {
$offset += 8;
}
$icmp_proto = hexdec($work[18+$offset].$work[19+$offset]);
$payload_ip_checksum = "0x" .
($work[20 + $offset] . $work[21 + $offset]) .
($work[22 + $offset] . $work[23 + $offset]);
$icmp_src = hexdec($work[24+$offset].$work[25+$offset]).".".
hexdec($work[26+$offset].$work[27+$offset]).".".
hexdec($work[28+$offset].$work[29+$offset]).".".
hexdec($work[30+$offset].$work[31+$offset]);
$icmp_dst = hexdec($work[32+$offset].$work[33+$offset]).".".
hexdec($work[34+$offset].$work[35+$offset]).".".
hexdec($work[36+$offset].$work[37+$offset]).".".
hexdec($work[38+$offset].$work[39+$offset]);
$hdr_offset = ($work[$offset+1]) * 8 + $offset;
$icmp_src_port = hexdec($work[$hdr_offset].$work[$hdr_offset+1].$work[$hdr_offset+2].$work[$hdr_offset+3]);
$icmp_dst_port = hexdec($work[$hdr_offset+4].$work[$hdr_offset+5].$work[$hdr_offset+6].$work[$hdr_offset+7]);
if ($ICMPitype == "5") {
$seq_no_hex = ($work[ 8 + $hdr_offset]) . ($work[ 9 + $hdr_offset]) .
($work[10 + $hdr_offset]) . ($work[11 + $hdr_offset]) .
($work[12 + $hdr_offset]) . ($work[13 + $hdr_offset]) .
($work[14 + $hdr_offset]) . ($work[15 + $hdr_offset]);
$seq_no = hexdec($seq_no_hex);
}
echo '<TABLE BORDER=1>';
echo '<TR>';
echo '<TD class="plfieldhdr">Protocol</TD>';
echo '<TD class="plfieldhdr">Org.Source<BR>IP</TD>';