Vulnerability Development mailing list archives

Re: [Ftp client , Format strings and SEGFAULTS]


From: Michal Zalewski <lcamtuf () coredump cx>
Date: Wed, 5 Dec 2001 14:29:57 -0500 (EST)

On Wed, 5 Dec 2001, KF wrote:

Theoretically a server could construct a malicious response to a site
quote command and maybe take control of the client...

So far, we've seen fault conditions while parsing user-provided input
(commands). I didn't audit Linux ftp client, but I've performed several
tests some time ago, and I recall it seems to handle server responses
well. I didn't look too carefully, so it might be possible somewhere
(handling more advanced commands like 'mget', perhaps?), but it looks good
with simple activity...

-- 
_____________________________________________________
Michal Zalewski [lcamtuf () bos bindview com] [security]
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