Multiple FTP server ".lnk" directory traversal
| ftp-lnk-directory-traversal (6760) |  Low 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.
Platforms Affected:
- ArGoSoft, ArGoSoft FTP Server 1.2.2.2
- Texas Imperial Software, WFTPD 3.00 R5
- TransSoft, Broker FTP Server 5.x
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.
Consequences:
Obtain Information
References:
- ArGoSoft Web site, ArGoSoft FTP Server at http://www.argosoft.com/applications/ftpserver/default.asp.
- BugTraq Mailing List, Sun Jul 01 2001 - 08:25:44 CDT, WFTPD v3.00 R5 Directory Traversal at http://archives.neohapsis.com/archives/bugtraq/2001-07/0013.html.
- BugTraq Mailing List, Sun Jul 01 2001 - 11:11:42 CDT, Broker 5.9.5.0 Directory Traversal at http://archives.neohapsis.com/archives/bugtraq/2001-07/0014.html.
- BugTraq Mailing List, Sun Jul 01 2001 - 11:30:35 CDT, ArGoSoft 1.2.2.2 *.lnk upload Directory Traversal at http://archives.neohapsis.com/archives/bugtraq/2001-07/0015.html.
- Texas Imperial Software Web site, Index of /downloads at http://www.wftpd.com/downloads/.
- BID-2957: WFTPD Shortcut Directory Traversal Vulnerability
- BID-2960: Transoft Broker .lnk Directory Traversal Vulnerability
- BID-2961: ArGoSoft FTP Server .lnk Directory Traversal Vulnerability
- CVE-2001-1042: Transsoft Broker 5.9.5.0 allows remote attackers to read arbitrary files and directories by uploading a .lnk (link) file that points to the target file.
- CVE-2001-1043: ArGoSoft FTP Server 1.2.2.2 allows remote attackers to read arbitrary files and directories by uploading a .lnk (link) file that points to the target file.
- CVE-2001-1386: WFTPD 3.00 allows remote attackers to read arbitrary files by uploading a (link) file that ends in a .lnk. extension, which bypasses WFTPD's check for a .lnk extension.
- OSVDB ID: 1886: ArGoSoft FTP Server .lnk Arbitrary File and Directory Access
Reported:
Jul 01, 2001
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