Re: Problems with tripwire:

2002-03-11 Thread Martin Peikert
Petro wrote: > Is there a file-security scanner like tripwire (or like AIDE) that > works across a network? I'm envisioning something that does local > file scanning, then transmits the resulting table to a remote (more > secure) host where the verification is done. Try samhain

Re: MS Front page extensions for Linux

2002-03-11 Thread Jeremy T. Bouse
On Tue, Mar 12, 2002 at 11:31:34AM +0800, Marcel Welschbillig wrote: > Hi, > > Is there any known security issues with installing micro$oft Front Page > extensions on a Debian Apache web server? I am reluctant to infect my > nice Linux web server with micro$oft code. > Well you did use

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Steve Langasek
On Tue, Mar 12, 2002 at 05:18:34PM +1300, John Morton wrote: > On Tuesday 12 March 2002 15:52, Steve Langasek wrote: > > > Doesnt dpkg also compile with a static zlib? Why does it not make > > > this list? > > What Internet-accessible port are you running dpkg on? :) > > dpkg doesn't normally

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Matt Zimmerman
On Mon, Mar 11, 2002 at 08:52:54PM -0600, Steve Langasek wrote: > dpkg doesn't normally run on a network port, so exploiting it doesn't get > you local access unless you already have it; and it's not suid, so running > it from commandline doesn't let you get root. Therefore, there is no > securit

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread John Morton
On Tuesday 12 March 2002 15:52, Steve Langasek wrote: > > Doesnt dpkg also compile with a static zlib? Why does it not make > > this list? > > What Internet-accessible port are you running dpkg on? :) > > dpkg doesn't normally run on a network port, so exploiting it doesn't > get you local acc

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Michael Stone
> Doesnt dpkg also compile with a static zlib? Why does it not make > this list? No, it doesn't. The potato version of dpkg forks a copy of gzip. Any other versions don't get security support. :) -- Mike Stone

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Andrew Tait
Unless your are going to dial into a malicious ISP, I doubt this will be a problem (AFAIK, but don't quote me). Most of my servers are stable/testing hybrids, including 2 running 2.4 (and I have been very happy with them). Update your sources.list to have both stable and testing (and make sure y

MS Front page extensions for Linux

2002-03-11 Thread Marcel Welschbillig
Hi, Is there any known security issues with installing micro$oft Front Page extensions on a Debian Apache web server? I am reluctant to infect my nice Linux web server with micro$oft code. Thanks ! -- Regards, Marcel Welschbillig

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix bufferoverflow

2002-03-11 Thread Chuck Peters
ii ppp2.4.1-0.bunk.2 Point-to-Point Protocol (PPP) daemon. How does this affect ppp servers running potato with the unofficial 2.4 packages provided by Adrian Bunk? Does anyone have any recommendations for fixing this potential exploit? Thanks, Chuck -- To UNSUBSCRIBE, email t

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Steve Langasek
On Mon, Mar 11, 2002 at 05:16:43PM -0600, Jor-el wrote: > On Mon, 11 Mar 2002, Michael Stone wrote: > > -BEGIN PGP SIGNED MESSAGE- > > - -- > > Debian Security Advisory DSA 122-1 [EMAIL PROTECTED]

Re: MS Front page extensions for Linux

2002-03-11 Thread Jeremy T. Bouse
On Tue, Mar 12, 2002 at 11:31:34AM +0800, Marcel Welschbillig wrote: > Hi, > > Is there any known security issues with installing micro$oft Front Page > extensions on a Debian Apache web server? I am reluctant to infect my > nice Linux web server with micro$oft code. > Well you did use

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Matt Zimmerman
On Mon, Mar 11, 2002 at 05:16:43PM -0600, Jor-el wrote: > > amaya 2.4-1potato1 > > dictd 1.4.9-9potato1 > > erlang 49.1-10.1 > > freeamp 2.0.6-2.1 > > mirrordir 0.10.48-2.1 > > ppp 2.3.11-1.5 > > rsync 2.3.2-1.6 > > vrweb 1.5-5.1 > > > Hi, > > Doesnt dpkg also compile with

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Adam Heath
On Mon, 11 Mar 2002, Jor-el wrote: > > The zlib vulnerability is fixed in the Debian zlib package version > > 1.1.3-5.1. A number of programs either link statically to zlib or include > > a private copy of zlib code. These programs must also be upgraded > > to eliminate the zlib vulnerability. The

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Steve Langasek
On Tue, Mar 12, 2002 at 05:18:34PM +1300, John Morton wrote: > On Tuesday 12 March 2002 15:52, Steve Langasek wrote: > > > Doesnt dpkg also compile with a static zlib? Why does it not make > > > this list? > > What Internet-accessible port are you running dpkg on? :) > > dpkg doesn't normally

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Joey Hess
Jor-el wrote: > Doesnt dpkg also compile with a static zlib? Why does it not make > this list? Yeah, dpkg-deb does. Presumaly you already have to trust debs you install, but this could affect using dpkg to examine the contents of untrusted debs.. -- see shy jo

Problems with tripwire:

2002-03-11 Thread Petro
I have tripwire installed on one of my servers (Debian Stable), and I've managed to get the configuration pretty quiet, but I'm having a little problem with one or two of them. The particular section of tw.config looks like: /var@@AW !/var/log/ksymoops/ /var/log@@LOGSEARCH /

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Matt Zimmerman
On Mon, Mar 11, 2002 at 08:52:54PM -0600, Steve Langasek wrote: > dpkg doesn't normally run on a network port, so exploiting it doesn't get > you local access unless you already have it; and it's not suid, so running > it from commandline doesn't let you get root. Therefore, there is no > securi

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread John Morton
On Tuesday 12 March 2002 15:52, Steve Langasek wrote: > > Doesnt dpkg also compile with a static zlib? Why does it not make > > this list? > > What Internet-accessible port are you running dpkg on? :) > > dpkg doesn't normally run on a network port, so exploiting it doesn't > get you local ac

MS Front page extensions for Linux

2002-03-11 Thread Marcel Welschbillig
Hi, Is there any known security issues with installing micro$oft Front Page extensions on a Debian Apache web server? I am reluctant to infect my nice Linux web server with micro$oft code. Thanks ! -- Regards, Marcel Welschbillig -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subje

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Steve Langasek
On Mon, Mar 11, 2002 at 05:16:43PM -0600, Jor-el wrote: > On Mon, 11 Mar 2002, Michael Stone wrote: > > -BEGIN PGP SIGNED MESSAGE- > > - -- > > Debian Security Advisory DSA 122-1 [EMAIL PROTECTED]

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Jor-el
On Mon, 11 Mar 2002, Michael Stone wrote: > -BEGIN PGP SIGNED MESSAGE- > > - -- > Debian Security Advisory DSA 122-1 [EMAIL PROTECTED] > http://www.debian.org/security/

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Michael Stone
> Doesnt dpkg also compile with a static zlib? Why does it not make > this list? No, it doesn't. The potato version of dpkg forks a copy of gzip. Any other versions don't get security support. :) -- Mike Stone -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix bufferoverflow

2002-03-11 Thread Adam Heath
On Mon, 11 Mar 2002, Jor-el wrote: > > The zlib vulnerability is fixed in the Debian zlib package version > > 1.1.3-5.1. A number of programs either link statically to zlib or include > > a private copy of zlib code. These programs must also be upgraded > > to eliminate the zlib vulnerability. Th

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Joey Hess
Jor-el wrote: > Doesnt dpkg also compile with a static zlib? Why does it not make > this list? Yeah, dpkg-deb does. Presumaly you already have to trust debs you install, but this could affect using dpkg to examine the contents of untrusted debs.. -- see shy jo -- To UNSUBSCRIBE, email

Problems with tripwire:

2002-03-11 Thread Petro
I have tripwire installed on one of my servers (Debian Stable), and I've managed to get the configuration pretty quiet, but I'm having a little problem with one or two of them. The particular section of tw.config looks like: /var@@AW !/var/log/ksymoops/ /var/log@@LOGSEARCH

Re: [SECURITY] [DSA 122-1] New zlib & other packages fix buffer overflow

2002-03-11 Thread Jor-el
On Mon, 11 Mar 2002, Michael Stone wrote: > -BEGIN PGP SIGNED MESSAGE- > > - -- > Debian Security Advisory DSA 122-1 [EMAIL PROTECTED] > http://www.debian.org/security/

Re: rootkit detection

2002-03-11 Thread Philip Thiem
He might have meant that he doesn't want to run the risk of getting a poor utility thinking that it is a good one(risk of security by ignorance), so he's asking for recommendations from people that might know something. However, he should understand program/technology limitations (e.g. they mig

Re: best way to create pop only accounts

2002-03-11 Thread Emmanuel Lacour
On Mon, Mar 11, 2002 at 04:10:10PM +0100, Alexander Reelsen wrote: > Hiya > > On Mon, Mar 11, 2002 at 03:40:18PM +0100, Javier Fernández-Sanguino Peña > wrote: > > On Mon, Mar 11, 2002 at 09:21:45AM -0300, Pedro Zorzenon Neto wrote: > > >Which is the best way to create a POP only account? jus

Re: Ssh and others compiled with tcpwrappers (Re: ssh without reverse DNS lookup)

2002-03-11 Thread Cristian Ionescu-Idbohrn
On Mon, 11 Mar 2002, Javier Fernández-Sanguino Peña wrote: > On Mon, Mar 11, 2002 at 01:12:58PM +0100, Javier Coso Gutierrez wrote: > > You have in the "/etc/hosts.deny" this: > > ALL:PARANOID > > That's exactly what I was thinking about.. many programs in > Debian are now compiled with the

Re: rootkit detection

2002-03-11 Thread Philip Thiem
He might have meant that he doesn't want to run the risk of getting a poor utility thinking that it is a good one(risk of security by ignorance), so he's asking for recommendations from people that might know something. However, he should understand program/technology limitations (e.g. they mi

Re: best way to create pop only accounts

2002-03-11 Thread Tim Uckun
The apache project has a full featured mail system called james. It's written in Java and seems very full featured. The specs are impressive but I haven't used it myself. You may want to check it out. :wq Tim Uckun US Investigations Services/Due Diligence http://www.diligence.com/

Re: best way to create pop only accounts

2002-03-11 Thread Emmanuel Lacour
On Mon, Mar 11, 2002 at 04:10:10PM +0100, Alexander Reelsen wrote: > Hiya > > On Mon, Mar 11, 2002 at 03:40:18PM +0100, Javier Fernández-Sanguino Peña wrote: > > On Mon, Mar 11, 2002 at 09:21:45AM -0300, Pedro Zorzenon Neto wrote: > > >Which is the best way to create a POP only account? just

Re: Ssh and others compiled with tcpwrappers (Re: ssh without reverseDNS lookup)

2002-03-11 Thread Cristian Ionescu-Idbohrn
On Mon, 11 Mar 2002, Javier Fernández-Sanguino Peña wrote: > On Mon, Mar 11, 2002 at 01:12:58PM +0100, Javier Coso Gutierrez wrote: > > You have in the "/etc/hosts.deny" this: > > ALL:PARANOID > > That's exactly what I was thinking about.. many programs in > Debian are now compiled with the

Re: best way to create pop only accounts

2002-03-11 Thread Alexander Reelsen
Hiya On Mon, Mar 11, 2002 at 03:40:18PM +0100, Javier Fernández-Sanguino Peña wrote: > On Mon, Mar 11, 2002 at 09:21:45AM -0300, Pedro Zorzenon Neto wrote: > >Which is the best way to create a POP only account? just change the > > last field in /etc/passwd to /bin/false? > No. My 2 cents

Re: best way to create pop only accounts

2002-03-11 Thread Javier Fernández-Sanguino Peña
On Mon, Mar 11, 2002 at 09:21:45AM -0300, Pedro Zorzenon Neto wrote: > Hi, > >Which is the best way to create a POP only account? just change the > last field in /etc/passwd to /bin/false? No. My 2 cents (of Euro): use a directory for POP authentication using the appropiate PAM module

Re: best way to create pop only accounts

2002-03-11 Thread Tim Uckun
The apache project has a full featured mail system called james. It's written in Java and seems very full featured. The specs are impressive but I haven't used it myself. You may want to check it out. :wq Tim Uckun US Investigations Services/Due Diligence http://www.diligence.com/ -- To

Re: best way to create pop only accounts

2002-03-11 Thread Davy Gigan
Pedro Zorzenon Neto writes: > Hi, > >Which is the best way to create a POP only account? just change the > last field in /etc/passwd to /bin/false? What about using qmail with vpopmail ? Simple, efficient, and really disconnected from the underlying server ... -- Davy Gigan System & Ne

Re: ssh without reverse DNS lookup

2002-03-11 Thread Javier Coso Gutierrez
El 11 de mar de 2002, a las 12:24 +, Alan James escribio: [...] > > ReverseMappingCheck no > [...] -- Fin de mensaje original -- But this is only in "SSH protocol version 2", isn.t it?? I.m trying to look for this in version 1 and I don.t found it. Bye, -- ---

Re: best way to create pop only accounts

2002-03-11 Thread Eelco van Beek
Hi, If I were you I'd use Dbmail (www.dbmail.org, cvs version). It has got all this and more. Best regards, Eelco On 11-03-2002 13:21, "Pedro Zorzenon Neto" <[EMAIL PROTECTED]> wrote: > Hi, > > Which is the best way to create a POP only account? just change the > last field in /etc/passwd to

Re: best way to create pop only accounts

2002-03-11 Thread Alexander Reelsen
Hiya On Mon, Mar 11, 2002 at 03:40:18PM +0100, Javier Fernández-Sanguino Peña wrote: > On Mon, Mar 11, 2002 at 09:21:45AM -0300, Pedro Zorzenon Neto wrote: > >Which is the best way to create a POP only account? just change the > > last field in /etc/passwd to /bin/false? > No. My 2 cent

Re: ssh without reverse DNS lookup

2002-03-11 Thread Alan James
On Mon, 11 Mar 2002 09:02:17 -0300, Pedro Zorzenon Neto <[EMAIL PROTECTED]> wrote: > I've looked in "man sshd" and "man ssh" and I didn't see any >configuration option which bypass the reverse lookup, enabling >connections from machines without reverse DNS lookup. How can I do >this? (I don't wa

Ssh and others compiled with tcpwrappers (Re: ssh without reverse DNS lookup)

2002-03-11 Thread Javier Fernández-Sanguino Peña
On Mon, Mar 11, 2002 at 01:12:58PM +0100, Javier Coso Gutierrez wrote: > You have in the "/etc/hosts.deny" this: > ALL:PARANOID That's exactly what I was thinking about.. many programs in Debian are now compiled with the tcpwrappers library: ssh, portmap, in.talk, rpc.statd, rpc.mountd, g

best way to create pop only accounts

2002-03-11 Thread Pedro Zorzenon Neto
Hi, Which is the best way to create a POP only account? just change the last field in /etc/passwd to /bin/false? I want that the user will not be able to do anything on the machine but retriving mail. I will enable APOP in qpopper or use some ssl wrapper for POP3, will disable the plain

Re: best way to create pop only accounts

2002-03-11 Thread Javier Fernández-Sanguino Peña
On Mon, Mar 11, 2002 at 09:21:45AM -0300, Pedro Zorzenon Neto wrote: > Hi, > >Which is the best way to create a POP only account? just change the > last field in /etc/passwd to /bin/false? No. My 2 cents (of Euro): use a directory for POP authentication using the appropiate PAM modul

Re: ssh without reverse DNS lookup

2002-03-11 Thread B Beck
On Mon, 11 Mar 2002 09:02:17 -0300 "Pedro Zorzenon Neto" <[EMAIL PROTECTED]> wrote: > ssh_exchange_identification: Connection closed by remote host This message means that a connection was made to the server but was closed before SSH protocol was initiated. This is usually caused by a libwrap se

Re: ssh without reverse DNS lookup

2002-03-11 Thread Javier Coso Gutierrez
You have in the "/etc/hosts.deny" this: ALL:PARANOID Try something like this "/etc/hosts.deny" => ALL:ALL "/etc/hosts.allow" => sshd:ALL For more information "man 5 hosts.access & man 5 hosts_options" Bye ;) -- --

ssh without reverse DNS lookup

2002-03-11 Thread Pedro Zorzenon Neto
Hi, ssh in potato is set to always try to use reverse DNS lookup. If the client is not registered in the DNS server, then it gets an answer: "ssh_exchange_identification: Connection closed by remote host" I've looked in "man sshd" and "man ssh" and I didn't see any configuration option whic

Re: best way to create pop only accounts

2002-03-11 Thread Davy Gigan
Pedro Zorzenon Neto writes: > Hi, > >Which is the best way to create a POP only account? just change the > last field in /etc/passwd to /bin/false? What about using qmail with vpopmail ? Simple, efficient, and really disconnected from the underlying server ... -- Davy Gigan System & Ne

Re: ssh without reverse DNS lookup

2002-03-11 Thread Javier Coso Gutierrez
El 11 de mar de 2002, a las 12:24 +, Alan James escribio: [...] > > ReverseMappingCheck no > [...] -- Fin de mensaje original -- But this is only in "SSH protocol version 2", isn.t it?? I.m trying to look for this in version 1 and I don.t found it. Bye, -- --

Re: best way to create pop only accounts

2002-03-11 Thread Eelco van Beek
Hi, If I were you I'd use Dbmail (www.dbmail.org, cvs version). It has got all this and more. Best regards, Eelco On 11-03-2002 13:21, "Pedro Zorzenon Neto" <[EMAIL PROTECTED]> wrote: > Hi, > > Which is the best way to create a POP only account? just change the > last field in /etc/passwd t

Re: ssh without reverse DNS lookup

2002-03-11 Thread Alan James
On Mon, 11 Mar 2002 09:02:17 -0300, Pedro Zorzenon Neto <[EMAIL PROTECTED]> wrote: > I've looked in "man sshd" and "man ssh" and I didn't see any >configuration option which bypass the reverse lookup, enabling >connections from machines without reverse DNS lookup. How can I do >this? (I don't w

Ssh and others compiled with tcpwrappers (Re: ssh without reverse DNS lookup)

2002-03-11 Thread Javier Fernández-Sanguino Peña
On Mon, Mar 11, 2002 at 01:12:58PM +0100, Javier Coso Gutierrez wrote: > You have in the "/etc/hosts.deny" this: > ALL:PARANOID That's exactly what I was thinking about.. many programs in Debian are now compiled with the tcpwrappers library: ssh, portmap, in.talk, rpc.statd, rpc.mountd,

best way to create pop only accounts

2002-03-11 Thread Pedro Zorzenon Neto
Hi, Which is the best way to create a POP only account? just change the last field in /etc/passwd to /bin/false? I want that the user will not be able to do anything on the machine but retriving mail. I will enable APOP in qpopper or use some ssl wrapper for POP3, will disable the plai

Re: ssh without reverse DNS lookup

2002-03-11 Thread B Beck
On Mon, 11 Mar 2002 09:02:17 -0300 "Pedro Zorzenon Neto" <[EMAIL PROTECTED]> wrote: > ssh_exchange_identification: Connection closed by remote host This message means that a connection was made to the server but was closed before SSH protocol was initiated. This is usually caused by a libwrap s

Re: ssh without reverse DNS lookup

2002-03-11 Thread Javier Coso Gutierrez
You have in the "/etc/hosts.deny" this: ALL:PARANOID Try something like this "/etc/hosts.deny" => ALL:ALL "/etc/hosts.allow" => sshd:ALL For more information "man 5 hosts.access & man 5 hosts_options" Bye ;) -- -

ssh without reverse DNS lookup

2002-03-11 Thread Pedro Zorzenon Neto
Hi, ssh in potato is set to always try to use reverse DNS lookup. If the client is not registered in the DNS server, then it gets an answer: "ssh_exchange_identification: Connection closed by remote host" I've looked in "man sshd" and "man ssh" and I didn't see any configuration option whi

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2002-03-11 Thread Alexey