Re: Checking what running program are using old libraries

2004-03-18 Thread Stefan Neufeind
On 18 Mar 2004 at 10:03, Ronny Adsetts wrote: > Whilst doing security upgrades this morning for openssl, it occurred to me > that lots of software that uses the openssl libraries will not automatically > get restarted and will therefore still be running with old libraries and > therefore be vul

Re: Checking what running program are using old libraries

2004-03-18 Thread Stefan Neufeind
On 18 Mar 2004 at 10:03, Ronny Adsetts wrote: > Whilst doing security upgrades this morning for openssl, it occurred to me > that lots of software that uses the openssl libraries will not automatically > get restarted and will therefore still be running with old libraries and > therefore be vul

Re: I have a big problem

2004-03-08 Thread Stefan Neufeind
a) First, if you can don't use the infected Linux for cleaning but boot from a rescue-system. b) Maybe try to generate a list of files that are infected. Have a look if only a limited number of files or files from a certain number of packages have been infected. c) Try to re-install those packag

Re: I have a big problem

2004-03-08 Thread Stefan Neufeind
a) First, if you can don't use the infected Linux for cleaning but boot from a rescue-system. b) Maybe try to generate a list of files that are infected. Have a look if only a limited number of files or files from a certain number of packages have been infected. c) Try to re-install those packag

Re: [sec] Re: Strange segmentation faults and Zombies

2003-09-18 Thread Stefan Neufeind
On 18 Sep 2003 at 15:02, Markus Schabel wrote: > Christian Storch wrote: > > The problem is starting >>before<< > > I think all the things >>before<< phpshell.php are done via > phpshell.php and the things you can see in the .bash_history > are only the things after he already got in. > [...] >

Re: [sec] Re: Strange segmentation faults and Zombies

2003-09-18 Thread Stefan Neufeind
On 18 Sep 2003 at 15:02, Markus Schabel wrote: > Christian Storch wrote: > > The problem is starting >>before<< > > I think all the things >>before<< phpshell.php are done via > phpshell.php and the things you can see in the .bash_history > are only the things after he already got in. > [...] >

Re: MAC address change

2003-06-22 Thread Stefan Neufeind
On 22 Jun 2003 at 13:54, Adam ENDRODI wrote: > How widely do you think changing the MAC address of a NIC via > ``ifconfig hw'' is supported by the various network cards > and drivers out there nowadays? > > My collegue and me have debated several times whether watching > the LAN for non-matching

Re: MAC address change

2003-06-22 Thread Stefan Neufeind
On 22 Jun 2003 at 13:54, Adam ENDRODI wrote: > How widely do you think changing the MAC address of a NIC via > ``ifconfig hw'' is supported by the various network cards > and drivers out there nowadays? > > My collegue and me have debated several times whether watching > the LAN for non-matching

Re: Someone scanned my ssh daemon

2003-06-16 Thread Stefan Neufeind
On 16 Jun 2003 at 7:00, Halil Demirezen wrote: > > My Debian box: > > Connection closed by foreign host. > > [EMAIL PROTECTED]:~> telnet xx.com 22 > > Trying 203.167.224.... > > Connected to xx.com. > > Escape character is '^]'. > > SSH-2.0-OpenSSH_3.4p1 Debian 1:3.4p1-1 > > To be bri

Re: Someone scanned my ssh daemon

2003-06-16 Thread Stefan Neufeind
On 16 Jun 2003 at 7:00, Halil Demirezen wrote: > > My Debian box: > > Connection closed by foreign host. > > [EMAIL PROTECTED]:~> telnet xx.com 22 > > Trying 203.167.224.... > > Connected to xx.com. > > Escape character is '^]'. > > SSH-2.0-OpenSSH_3.4p1 Debian 1:3.4p1-1 > > To be bri

Re: cracked? "rm uses obsolete (PF_INET,SOCK_PACKET)"

2003-06-16 Thread Stefan Neufeind
On 15 Jun 2003 at 10:36, Noah Meyerhans wrote: > In terms of protecting against breakin, it seems like a lot of people > here have been advocating the grsecurity kernel patch. I have no > experience with it, but the list of features certainly makes it sound > like it will protect against some of

Re: cracked? "rm uses obsolete (PF_INET,SOCK_PACKET)"

2003-06-16 Thread Stefan Neufeind
On 15 Jun 2003 at 10:36, Noah Meyerhans wrote: > In terms of protecting against breakin, it seems like a lot of people > here have been advocating the grsecurity kernel patch. I have no > experience with it, but the list of features certainly makes it sound > like it will protect against some of

RE: OPENSSL

2003-06-11 Thread Stefan Neufeind
On 11 Jun 2003 at 6:59, Reckhard, Tobias wrote: > On Tue, Jun 10, Stefan Neufeind wrote: > > I'm using a 128-bit-cert. > > You're using an X.509 certificate. The grade of symmetric encryption > negotiated between browser and web server is (at least in theory) >

RE: OPENSSL

2003-06-11 Thread Stefan Neufeind
On 11 Jun 2003 at 6:59, Reckhard, Tobias wrote: > On Tue, Jun 10, Stefan Neufeind wrote: > > I'm using a 128-bit-cert. > > You're using an X.509 certificate. The grade of symmetric encryption > negotiated between browser and web server is (at least in theory) >

Re: OPENSSL

2003-06-10 Thread Stefan Neufeind
I'm using a 128-bit-cert. But browsers that support less encryption (e.g. IE that comes with WinNT4) can't access my SSL-pages because the encryption doesn't allow degration. Is there any way to solve this prob? Using Apache with an official SSL-cert. PS: This just came to my mind when you said

Re: Default Apache install not fit for multiple domains/users

2003-06-10 Thread Stefan Neufeind
; > > > On Mon, 09 Jun 2003 at 09:35:49PM +0200, Stefan Neufeind wrote: > > > But you mean starting with #! ?? How could I use the normal way of > > > setting a cgi-handler for calling .php-files? Know what I mean? > > > > > > Using Misc Binary-supp

Re: OPENSSL

2003-06-10 Thread Stefan Neufeind
I'm using a 128-bit-cert. But browsers that support less encryption (e.g. IE that comes with WinNT4) can't access my SSL-pages because the encryption doesn't allow degration. Is there any way to solve this prob? Using Apache with an official SSL-cert. PS: This just came to my mind when you said

Re: Default Apache install not fit for multiple domains/users

2003-06-10 Thread Stefan Neufeind
; > > > On Mon, 09 Jun 2003 at 09:35:49PM +0200, Stefan Neufeind wrote: > > > But you mean starting with #! ?? How could I use the normal way of > > > setting a cgi-handler for calling .php-files? Know what I mean? > > > > > > Using Misc Binary-supp

Re: Default Apache install not fit for multiple domains/users

2003-06-09 Thread Stefan Neufeind
03 at 11:02, Ted Cabeen wrote: > "Stefan Neufeind" <[EMAIL PROTECTED]> writes: > > > But afaik you run into real problems when you try to use suexec with > > php, don't you? Or has anybody managed to get this running > > correctly? (for Apache 1.3.x

Re: Default Apache install not fit for multiple domains/users

2003-06-09 Thread Stefan Neufeind
03 at 11:02, Ted Cabeen wrote: > "Stefan Neufeind" <[EMAIL PROTECTED]> writes: > > > But afaik you run into real problems when you try to use suexec with > > php, don't you? Or has anybody managed to get this running > > correctly? (for Apache 1.3.x

Re: Default Apache install not fit for multiple domains/users

2003-06-09 Thread Stefan Neufeind
But afaik you run into real problems when you try to use suexec with php, don't you? Or has anybody managed to get this running correctly? (for Apache 1.3.x !!!). On 6 Jun 2003 at 17:06, Wade Richards wrote: > On 06 Jun 2003 16:15:37 PDT, Jon writes: > >I believe Apache would still be executing

Re: Default Apache install not fit for multiple domains/users

2003-06-09 Thread Stefan Neufeind
But afaik you run into real problems when you try to use suexec with php, don't you? Or has anybody managed to get this running correctly? (for Apache 1.3.x !!!). On 6 Jun 2003 at 17:06, Wade Richards wrote: > On 06 Jun 2003 16:15:37 PDT, Jon writes: > >I believe Apache would still be executing

PHP4-package for using FTP-SSL?

2003-05-21 Thread Stefan Neufeind
Hi, is there a package available (similar to the ftp-package which can be found in the pear-lib) to use ftp with ssl? I'm not looking for SFTP (SSH-filetransfer) but SSL with "AUTH SSL" at the beginning of the session. All the best Stefan

Re: Presentation

2003-04-25 Thread Stefan Neufeind
Seems like again somebody is willing to pay the "donation" to debian? List-admin ... go ahead :-)

Re: Secure remote syslogging?

2003-04-23 Thread Stefan Neufeind
eth R. van Wyk wrote: > On Wednesday 23 April 2003 13:43, Stefan Neufeind wrote: > > what is the best way to remotely syslog? > > If the business situation warrants the expense, then I advise my > clients to run an admin network on critical servers, with one hardened > syslog serv

Secure remote syslogging?

2003-04-23 Thread Stefan Neufeind
Hi, what is the best way to remotely syslog? In "RE: HELP, my Debian Server was hacked!" by James Duncan he wrote to use "syslog to log locally AND remotely". This is a good idea. But I wonder how to make it safe. Let's say I have two servers. Each could keep a second, separate log as "backup-l

Re: VPN: SSH or IPSec???

2003-04-17 Thread Stefan Neufeind
On 16 Apr 2003 at 17:05, Jeff wrote: > Felipe Martínez Hermo, 2003-Apr-16 18:23 +0100: > > > > So far, I also prefer IPSec because it seems to be the most > > standard-compliant implementation, but I want to know my options. I > > have just bought Kolesnikov's book, but I have not started wi

RE: Debian Kernel's and FreeSwan

2003-04-05 Thread Stefan Neufeind
On 5 Apr 2003 at 9:04, Steve Jr Ramage wrote: > Well continuing the problem, I have moved from the original one, > appended at the bottom. Now something else is wrong, basically the > following out put. I had to use 'export PATCH_THE_KERNEL=YES' (thanks > Kenneth). Now the kernel compile asks me

RE: Debian Kernel's and FreeSwan

2003-04-05 Thread Stefan Neufeind
On 5 Apr 2003 at 9:04, Steve Jr Ramage wrote: > Well continuing the problem, I have moved from the original one, > appended at the bottom. Now something else is wrong, basically the > following out put. I had to use 'export PATCH_THE_KERNEL=YES' (thanks > Kenneth). Now the kernel compile asks me

Logcheck, Logsentry, LogRider etc.

2003-03-30 Thread Stefan Neufeind
Hi, I read on this list that several people are using logcheck, right? Is this still up2date? Somewhere on the net I found that it was followed by logsentry from Psionic - but this company doesn't seem to exist anymore. Afaik logsentry at last was also free. And does anybody know something abo

Logcheck, Logsentry, LogRider etc.

2003-03-30 Thread Stefan Neufeind
Hi, I read on this list that several people are using logcheck, right? Is this still up2date? Somewhere on the net I found that it was followed by logsentry from Psionic - but this company doesn't seem to exist anymore. Afaik logsentry at last was also free. And does anybody know something abo

Re: is iptables enough?

2003-03-19 Thread Stefan Neufeind
What I find astonishing: Let's say you are running a webserver, maybe mailserver and a DNS on a server. What rules do you want to apply to the packets etc.? I would suggest to keep the open ports restricted, check for all current updates regularly (subscribe to several mailinglists etc.) and I

Re: is iptables enough?

2003-03-19 Thread Stefan Neufeind
What I find astonishing: Let's say you are running a webserver, maybe mailserver and a DNS on a server. What rules do you want to apply to the packets etc.? I would suggest to keep the open ports restricted, check for all current updates regularly (subscribe to several mailinglists etc.) and I

Re: Traffic monitoring

2003-03-14 Thread Stefan Neufeind
While we're still in the field of counting and monitoring traffic: Is there any good way to account traffic on one computer by user? I searched several times for this but didn't find any good solution. Some people said it should be do-able with kernel-modules but nobody knew who had already done

Re: Traffic monitoring

2003-03-14 Thread Stefan Neufeind
You might want to try out the packat "iptraf" and monitor the interface ipsec0. It gives you various overwiews on traffic going over each port in / out as well as other statistics. Only drawback: It only counts as long as you leave it running on console. But I guess leaving it running for e.g.

Re: Traffic monitoring

2003-03-14 Thread Stefan Neufeind
While we're still in the field of counting and monitoring traffic: Is there any good way to account traffic on one computer by user? I searched several times for this but didn't find any good solution. Some people said it should be do-able with kernel-modules but nobody knew who had already done

Re: Traffic monitoring

2003-03-14 Thread Stefan Neufeind
You might want to try out the packat "iptraf" and monitor the interface ipsec0. It gives you various overwiews on traffic going over each port in / out as well as other statistics. Only drawback: It only counts as long as you leave it running on console. But I guess leaving it running for e.g.

Re: Protection against http tunneling (was: HTTP tunnel with linux server and windows client)

2003-03-14 Thread Stefan Neufeind
I've worked for a firm where they limited http-connections to let's say 2MB per connection. So for stealing a lot of data you always had to open several connections. This was some kind of "protection" against tunnels and heavy downloads. Maybe this interruption would be of some use to prevent i

Re: Protection against http tunneling (was: HTTP tunnel with linux server and windows client)

2003-03-14 Thread Stefan Neufeind
I've worked for a firm where they limited http-connections to let's say 2MB per connection. So for stealing a lot of data you always had to open several connections. This was some kind of "protection" against tunnels and heavy downloads. Maybe this interruption would be of some use to prevent i

Re: Permissions on /root/

2003-03-08 Thread Stefan Neufeind
On 8 Mar 2003 at 17:40, Christian Jaeger wrote: > At 13:02 Uhr +0200 08.03.2003, Birzan George Cristian wrote: > - You should also be aware that a 0700 directory does not protect you > if you are moving another directory from outside to inside, since > users who have already chdir'd into it remain

Re: Permissions on /root/

2003-03-08 Thread Stefan Neufeind
On 8 Mar 2003 at 17:40, Christian Jaeger wrote: > At 13:02 Uhr +0200 08.03.2003, Birzan George Cristian wrote: > - You should also be aware that a 0700 directory does not protect you > if you are moving another directory from outside to inside, since > users who have already chdir'd into it remain

Re: Firewall Informer

2003-02-23 Thread Stefan Neufeind
Burn him ... make him pay the donation. That's the least thing justified. To the listmod: I would rate this a good idea, to donate USD 1000. On 24 Feb 2003 at 9:05, Jean-Francois Dive wrote: > I'm glad to see this is not a standard form of spamming as your > answered comments on the list. Howe

Re: Firewall Informer

2003-02-23 Thread Stefan Neufeind
Burn him ... make him pay the donation. That's the least thing justified. To the listmod: I would rate this a good idea, to donate USD 1000. On 24 Feb 2003 at 9:05, Jean-Francois Dive wrote: > I'm glad to see this is not a standard form of spamming as your > answered comments on the list. Howe

Re: Telnet forwarding ??

2003-02-20 Thread Stefan Neufeind
On 20 Feb 2003 at 9:59, Alan James wrote: > On Thu, 20 Feb 2003 05:35:01 +, Dale Amon <[EMAIL PROTECTED]> wrote: > > >> or maybe a FreeS/WAN implementation for cygwin (is there a native > >> win implementation?) ... but thats a different problem ... > > > >I doubt it. FreeSWAN uses Linux kern

Re: Telnet forwarding ??

2003-02-20 Thread Stefan Neufeind
On 20 Feb 2003 at 9:59, Alan James wrote: > On Thu, 20 Feb 2003 05:35:01 +, Dale Amon <[EMAIL PROTECTED]> wrote: > > >> or maybe a FreeS/WAN implementation for cygwin (is there a native > >> win implementation?) ... but thats a different problem ... > > > >I doubt it. FreeSWAN uses Linux kern

Re: Re[2]: VPN e Win32 client info

2003-02-12 Thread Stefan Neufeind
On 12 Feb 2003 at 13:17, Benjamin wrote: > is L2TP also possible with dynamic ips? Yes it is. Basically you would use an IPsec-encrypted connection with X509-certs. Have a look at the "FreeS/Wan-patch-homepage" and try out the patched FreeS/Wan or maybe already SuperFreeS/Wan with the X509- pat

Re: VPN e Win32 client info

2003-02-12 Thread Stefan Neufeind
On 12 Feb 2003 at 11:52, Tadeusz Knapik wrote: > 12.02.03 pisze Massimo Villa ([EMAIL PROTECTED]): > > > There's anybody who knows a ggod howto to install e simple ma secure > > VPN between two little lan? Is it possible for a single user > > (example, a home user with W2K), to use a win32 client

Re: Re[2]: VPN e Win32 client info

2003-02-12 Thread Stefan Neufeind
On 12 Feb 2003 at 13:17, Benjamin wrote: > is L2TP also possible with dynamic ips? Yes it is. Basically you would use an IPsec-encrypted connection with X509-certs. Have a look at the "FreeS/Wan-patch-homepage" and try out the patched FreeS/Wan or maybe already SuperFreeS/Wan with the X509- pat

Re: VPN e Win32 client info

2003-02-12 Thread Stefan Neufeind
Maybe you might have a look at FreeS/Wan for the server-side. FreeS/Wan itself can be used to connect LANs directly via IPsec. There are also various ways to connect Windows-clients to such an IPsec-network. If you're interested, maybe have a look at the FreeS/Wan-mailinglist at: lists.freeswa

Re: VPN e Win32 client info

2003-02-12 Thread Stefan Neufeind
On 12 Feb 2003 at 11:52, Tadeusz Knapik wrote: > 12.02.03 pisze Massimo Villa ([EMAIL PROTECTED]): > > > There's anybody who knows a ggod howto to install e simple ma secure > > VPN between two little lan? Is it possible for a single user > > (example, a home user with W2K), to use a win32 client

Re: VPN e Win32 client info

2003-02-12 Thread Stefan Neufeind
Maybe you might have a look at FreeS/Wan for the server-side. FreeS/Wan itself can be used to connect LANs directly via IPsec. There are also various ways to connect Windows-clients to such an IPsec-network. If you're interested, maybe have a look at the FreeS/Wan-mailinglist at: lists.freeswa