Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-19 Thread Hamish Moffatt
On Mon, Oct 19, 1998 at 09:51:43AM +0100, Paul Crowley wrote: > George Bonser <[EMAIL PROTECTED]> writes: > > My problem with encrypted filesystems is that if you loose the key, you > > might as well mkfs the drive. > > There are ways around this. You could, for example, break the key > into five

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-19 Thread Paul Crowley
George Bonser <[EMAIL PROTECTED]> writes: > My problem with encrypted filesystems is that if you loose the key, you > might as well mkfs the drive. There are ways around this. You could, for example, break the key into five pieces using a secret sharing scheme and put them in five different secur

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-19 Thread fantomas
-> >Basic Unix Secruity 101 - If the person has physical access to the -> >machine, there *IS* *NO* *SECURITY*. Want proof? -> > -> >I pop the HD out, place it as slave on my machine, mount what I want, end -> >of story. Before this thread goes any further I recommend that anyone who ->

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-18 Thread Robert Wilderspin
On 12 Oct 98 21:21:48 GMT, "Steve Lamb" <[EMAIL PROTECTED]> wrote: >Basic Unix Secruity 101 - If the person has physical access to the >machine, there *IS* *NO* *SECURITY*. Want proof? > >I pop the HD out, place it as slave on my machine, mount what I want, end >of story. Before this thr

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-13 Thread George R
On 10/12/98 at 08:30 AM, "Helge Hafting" <[EMAIL PROTECTED]> said: >Most x86 pc's can be set to boot from harddisk *only*, with a password- >protected bios. This means the machine is safe as long as people don't >remove the cover. Unless of course the BIOS accepts the tech support password. And

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-13 Thread Jens Ritter
[EMAIL PROTECTED] writes: > It's a matter of threat assessment and the value of what you are > protecting. We can get paranoid and put gun towers on every corner of our > homes because someone might want to interrupt power and communications to > our personal linux server. Recently, I was reading

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-13 Thread Jens Ritter
Helge Hafting <[EMAIL PROTECTED]> writes: > How to avoid this? Shielded equipment, or simply a machine > without a video card. Displaying only non-sensitive data > is safe too of course. There is also a software solution for preventing radiating data by this way (See comp.risks, I think, look f

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-13 Thread Jens Ritter
Michael Beattie <[EMAIL PROTECTED]> writes: > other=/dev/hda1 > label=Win > loader=/boot/chain.b > table=/dev/hda > [end] This means a malicious person will be able to download the ext2 driver in Win95 (if it is running) and the person will be able to read shadow. -- [EMAIL PRO

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-12 Thread Ralph Winslow
When Steve Lamb wrote, I replied: > > On Mon, 12 Oct 1998 14:58:39 +0100, Ralf G. R. Bergs wrote: > > >>This is a security hole ONLY if someone has access to the machine > >>itself. These techniques are useable on any computer running any operating system not just Linux or UNIX. Physical access

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-12 Thread Steve Lamb
On Mon, 12 Oct 1998 14:58:39 +0100, Ralf G. R. Bergs wrote: >>This is a security hole ONLY if someone has access to the machine >>itself. >This is not exactly uncommon, especially in computer labs. Basic Unix Secruity 101 - If the person has physical access to the machine, there *IS* *NO* *S

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-12 Thread Ralf G. R. Bergs
On Mon, 12 Oct 1998 05:21:25 -0700 (PDT), Kenneth Scharf wrote: >This is a security hole ONLY if someone has access to the machine >itself. This is not exactly uncommon, especially in computer labs. >>What's wrong with giving LILO a kernel command line of "init=/bin/sh"? >This way >>you boot st

***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-12 Thread Kenneth Scharf
This is a security hole ONLY if someone has access to the machine itself. I bet many UNIX machines have a similar problem. Thats why I've seen PDP mini computers where the power switch was under lock and key, and the front panel on these machines was also lockable. Most PC's used to have a keybo

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-12 Thread Helge Hafting
In <[EMAIL PROTECTED]>, on 10/11/98 at 01:15 AM, Marcus Brinkmann <[EMAIL PROTECTED]> said: [...] >However, I said that the power chord should be removed. the reason is >that I think you can get the monitor screen, user input etc from >radiation led through the power chord. This may be hard

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-12 Thread Helge Hafting
In <[EMAIL PROTECTED]>, on 10/10/98 at 01:13 PM, Shaleh <[EMAIL PROTECTED]> said: >But people can always yank the power cord. Follow Paul's advice -- make >the machine physically in-accessible. Lock it, fence it in, whatever. >Locking racks is also nice. That way people can't even see the

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread Marcus Brinkmann
On Sat, Oct 10, 1998 at 01:13:17PM -0400, Shaleh wrote: > But people can always yank the power cord. Follow Paul's advice -- make the > machine physically in-accessible. Lock it, fence it in, whatever. Locking > racks is also nice. That way people can't even see the machine, just a big > cabin

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread paulwade
On Sat, 10 Oct 1998, Shaleh wrote: > But people can always yank the power cord. Follow Paul's advice -- make the > machine physically in-accessible. Lock it, fence it in, whatever. Locking > racks is also nice. That way people can't even see the machine, just a big > cabinet. > > What if it i

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread Shaleh
But people can always yank the power cord. Follow Paul's advice -- make the machine physically in-accessible. Lock it, fence it in, whatever. Locking racks is also nice. That way people can't even see the machine, just a big cabinet. What if it is a workstation in a lab? Then disable as much

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread Maarten Bezemer
> > ANOTHER REASON TO PLACE THE SERVERS IN A PHYSICALLY SECURE LOCATION: > > I was having an important discussion with a customer that I built a linux > server for. He brought his young child with him to his office that > evening. The child behaves very poorly. Guess what button he pressed? The >

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread paulwade
Marcus is absolutely right. SERVERS: This is a common misconception. People need to realize that physical security is required. Place the servers behind locked doors. Disk controllers which provide encryption/decryption (without performance penalty) cost extra money. Soft encryption would defini

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread Marcus Brinkmann
On Sat, Oct 10, 1998 at 11:26:30AM +0200, Norbert Nemec wrote: > On Sat, 10 Oct 1998 10:42:52 +0100, Ralf G. R. Bergs wrote: > > >On Sat, 10 Oct 1998 00:52:49 -0700 (PDT), George Bonser wrote: > > > >[...] > >>ALlow me to translate. Boot the rescue disk as if you are installing, > >[whole story d

Re: ***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread Michael Beattie
On Sat, 10 Oct 1998, Norbert Nemec wrote: > On Sat, 10 Oct 1998 10:42:52 +0100, Ralf G. R. Bergs wrote: > > >On Sat, 10 Oct 1998 00:52:49 -0700 (PDT), George Bonser wrote: > > > >[...] > >>ALlow me to translate. Boot the rescue disk as if you are installing, > >[whole story deleted] > > > >Hey g

***HUGE*** security hole??!! (Re: Lost root passwd)

1998-10-10 Thread Norbert Nemec
On Sat, 10 Oct 1998 10:42:52 +0100, Ralf G. R. Bergs wrote: >On Sat, 10 Oct 1998 00:52:49 -0700 (PDT), George Bonser wrote: > >[...] >>ALlow me to translate. Boot the rescue disk as if you are installing, >[whole story deleted] > >Hey guys, why so complicated??? > >What's wrong with giving LILO a

Re: Lost root passwd

1998-10-10 Thread Ralf G. R. Bergs
On Sat, 10 Oct 1998 00:52:49 -0700 (PDT), George Bonser wrote: [...] >ALlow me to translate. Boot the rescue disk as if you are installing, [whole story deleted] Hey guys, why so complicated??? What's wrong with giving LILO a kernel command line of "init=/bin/sh"? This way you boot straight in

Re: Lost root passwd

1998-10-10 Thread Michael Beattie
On Sat, 10 Oct 1998, Marcus Brinkmann wrote: > On Sat, Oct 10, 1998 at 02:09:27PM +1000, Clement wrote: > > Hi, > > > > I lost the root passwd on a machine. Can someone give me a hand to > > re-establish a new one? I lost the procedures somewhere. > > Boot with a boot floppy (the rescue disk).

Re: Lost root passwd

1998-10-10 Thread Marcus Brinkmann
On Sat, Oct 10, 1998 at 02:09:27PM +1000, Clement wrote: > Hi, > > I lost the root passwd on a machine. Can someone give me a hand to > re-establish a new one? I lost the procedures somewhere. Boot with a boot floppy (the rescue disk). Kill the passwd form /etc/passwd or /etc/shadow if you have

Lost root passwd

1998-10-10 Thread Clement
Hi, I lost the root passwd on a machine. Can someone give me a hand to re-establish a new one? I lost the procedures somewhere. Thank you very much. Regards, Clement