Secunia Security Advisory - Rob Kraus has discovered a vulnerability in TFTPUtil, which can be exploited by malicious people to bypass certain security restrictions.
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TITLE:
TFTPUtil Directory Traversal Vulnerability
SECUNIA ADVISORY ID:
SA33561
VERIFY ADVISORY:
http://secunia.com/advisories/33561/
CRITICAL:
Less critical
IMPACT:
Exposure of system information, Exposure of sensitive information
WHERE:
>From local network
SOFTWARE:
TFTPUtil 1.x
http://secunia.com/advisories/product/20994/
DESCRIPTION:
Rob Kraus has discovered a vulnerability in TFTPUtil, which can be
exploited by malicious people to bypass certain security
restrictions.
The vulnerability is caused due to an input validation error when
processing TFTP GET requests. This can be exploited to download files
from arbitrary locations outside the TFTP root via specially crafted
directory traversal sequences.
The vulnerability is confirmed in versions 1.3.0 and 1.4.0. Other
versions may also be affected.
SOLUTION:
Restrict access to trusted users only.
PROVIDED AND/OR DISCOVERED BY:
Rob Kraus (princeofnigeria)
ORIGINAL ADVISORY:
http://www.princeofnigeria.org/blogs/index.php/2009/01/14/tftputil-gui-tftp-directory-traversal
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