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CVE-2012-0297 Symantec Web Gateway Vulnerability

Description

The management GUI in Symantec Web Gateway 5.0.x before 5.0.3 does not properly restrict access to application scripts, which allows remote attackers to execute arbitrary code by (1) injecting crafted data or (2) including crafted data. **Recent assessments:** **wchen-r7** at September 12, 2019 6:07pm UTC reported: —\” >> logging”); exec(“echo \“route >> logging\” >> networkScript”); echo “executing script`<br/>`”; exec(“./networkScript”); ?> `</body>` `</html>` Analysis of the command injection echo “ifconfig eth0 netmask “. \\(HTTP_POST_VARS["subnet"] ." ". \\)HTTP_POST_VARS[“ip”] .“;” >> networkScript “;” + payload.encoded + “;#” **/spywall/network.php** ```php <?php require_once('includes/spywall_api.php'); /* $wan = 'eth0'; $lan = 'eth1'; $management = 'eth2'; $mon = 'eth3'; $savename = ''; $model = exec('cat /tmp/appliancemodel'); if ($model == '007' || $model == '009') { // different ethernet device numbers for these models $management = 'eth0'; $mon = 'eth3'; $wan = 'eth5'; $lan = 'eth6'; } */ $portMap = getPortMap(); $management = $portMap['mgmt']; $mon = $portMap['monitor']; $wan = $portMap['wan']; $lan = $portMap['lan']; $device = ''; if ($_POST['name'] == 'lan') { $device = $lan; $savename = 'LAN'; } else if ($_POST['name'] == 'wan') { $device = $wan; $savename = 'WAN'; } else if ($_POST['name'] == 'monitor') { $device = $mon; $savename = 'MON'; } else { $device = $management; $savename = 'MAN'; } if (strlen($device)) { // set autonegotiation, duplex (if it isn't set to unknown), // and speed (if it isn't set to unknown) exec("sudo /sbin/ethtool -s $device autoneg ". $_POST['auto'] .((isset($_POST['duplex']) && $_POST['duplex'] != 'unknown')?(" duplex ". $_POST['duplex']):'') .((isset($_POST['speed']) && $_POST['speed'] != 'unknown')?(" speed ". $_POST['speed']):'')); exec("sudo /bin/rm -f /home/admin/autoconfig". $savename); // save info to autoconfig file exec("echo \"/sbin/ethtool -s $device autoneg ". $_POST['auto'] .((isset($_POST['duplex']) && $_POST['duplex'] != 'unknown')?(" duplex ". $_POST['duplex']):'') .((isset($_POST['speed']) && $_POST['speed'] != 'unknown')?(" speed ". $_POST['speed']):'') ."\" > /home/admin/autoconfig". $savename); // echo "\"/sbin/ethtool -s $device autoneg ". $_POST['auto'] .(($_POST['duplex'] != 'unknown')?(" duplex ". $_POST['duplex']):'') .(($_POST['speed'] != 'unknown')?(" speed ". $_POST['speed']):'') ."\" > /home/admin/autoconfig". $savename; sleep(5); // we sleep because otherwise we get back before the changes take effect } ?> <script language="javascript"> window.location="admin_advanced.php";</script> Assessed Attacker Value: 0 Assessed Attacker Value: 0Assessed Attacker Value: 0


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