BugTraq
ws_ftp overflow Mar 14 2004 09:41PM
john layman (john interteq net) (1 replies)


Product: WS_FTP Pro v8.02 and probably earlier versions.

Vendor: Ipswitch

Vendor's Product Description:

WS_FTP Pro is the market leader in Windows-based FTP (file transfer protocol) client software. It enables users and organizations to move files between local and remote systems while enjoying the utmost in:

Problem:

WS_FTP Pro suffers a buffer over-run when ASCII mode directory data is passed to the client from the server, and this data exceeds 260 bytes without a terminating CR/LF. The application crashes with an error stating "instruction at 0xNNNNNNNN has addressed memory at ..." where 0xNNNNNNNN is a value in the overflowed buffer; suggesting that it is possible to cause WS_FTP Pro to continue execution at another location in memory - arbitrary code execution (?)

This problem can be demonstrated by creation of a long filename or directory name (250 bytes or more) in the ftp directory on the server, connecting to it and viewing the directory listing.

Fix:

Ipswitch was contacted about this problem, and version 8.03 appears to have solved it. Update!

[ reply ]
Re: ws_ftp overflow Mar 16 2004 03:02PM
nesumin softhome net (1 replies)
Re[2]: ws_ftp overflow (WS_FTP Pro 8.0.3 is vulnerable) Mar 19 2004 11:18AM
nesumin (nesumin softhome net)


 

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