Multiple FTP server ".lnk" directory traversal

ftp-lnk-directory-traversal (6760) The risk level is classified as LowLow Risk

Description:

ArGoSoft FTP Server, Transsoft Broker FTP Server, and WFTPD could allow a remote attacker to traverse directories on the Web server. A remote attacker can upload a '.lnk' file which points to any file or directory to traverse directories and gain access to any file in the directory containing the link.


Consequences:

Obtain Information

Remedy:

For WFTPD (all versions):
Upgrade to WFTPD (3.10 R1 or later) or (Pro 3.10 R1 or later), available from Texas Imperial Softwares Web site. See References.

For other distributions:
Contact your vendor for patch or upgrade information.

References:

Platforms Affected:

  • ArGoSoft ArGoSoft FTP Server 1.2.2.2
  • Texas Imperial Software WFTPD 3.00 R5
  • TransSoft Broker FTP Server 5.x

Reported:

Jul 01, 2001

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