From owner-freebsd-security Fri Dec 1 2:41:24 2000 Delivered-To: freebsd-security@freebsd.org Received: from nevermind.kiev.ua (unknown [212.109.53.33]) by hub.freebsd.org (Postfix) with ESMTP id 14D2B37B400; Fri, 1 Dec 2000 02:41:20 -0800 (PST) Received: (from never@localhost) by nevermind.kiev.ua (8.11.1/8.11.1) id eB1AfEf30654; Fri, 1 Dec 2000 12:41:14 +0200 (EET) (envelope-from never) Date: Fri, 1 Dec 2000 12:41:14 +0200 From: Nevermind To: Kris Kennaway Cc: freebsd-security@FreeBSD.ORG Subject: Re: Important!! Vulnerability in standard ftpd Message-ID: <20001201124114.I2185@nevermind.kiev.ua> References: <20001201122124.H2185@nevermind.kiev.ua> <20001201022909.A44090@citusc17.usc.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20001201022909.A44090@citusc17.usc.edu>; from kris@FreeBSD.ORG on Fri, Dec 01, 2000 at 02:29:09AM -0800 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello, Kris Kennaway! On Fri, Dec 01, 2000 at 02:29:09AM -0800, you wrote: > On Fri, Dec 01, 2000 at 12:21:24PM +0200, Nevermind wrote: > > Hello! > > > > The parallel thread are discussing suspicious > > drwxr-xr-x ftp/staff 0 Jul 31 00:04 2000 incoming/* > > dirs. I'm 100% sure that it is hack. I've been hacked few month ago this way. > > (with standard ftpd) > > > > First I've found incoming/~tmp./ dir. > > Then I've found suspicious process called "supa" (it may vary, I think). > > I don't exactly remember how I found directory in which ls -la said: > > ls: .: No such file or directory. > > > > This hack corrupts filesystem to make it's datadirs invisible. > > fsck in single mode severeal times helps. > > > > It is ttyp* and ttyv* sniffer, logger, password cracker. > > Please, check it out! > > Check what out? Probably your machine has some other vulnerability > which was leveraged. You have given us nothing here beyond showing > that your ftp server has a world writable directory. I cannot find now files I've found few month ago. You should contact better man, who had found ~tmp. dirs in his incoming (it is in parallel thread). He surely can find hidden files using fsck. He should look afair in /var/games/ -- Alexandr P. Kovalenko http://nevermind.kiev.ua/ NEVE-RIPE To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message