5575407 2000-10-10 23:20 /166 rader/ Brevbäraren (som är implementerad i) Python
Mottagare: Bugtraq (import) <13204>
Ärende: MDKSA-2000:057 - openssh update
------------------------------------------------------------
From: Linux Mandrake Security Team <security@LINUX-MANDRAKE.COM>
To: BUGTRAQ@SECURITYFOCUS.COM
Message-ID: <20001010115116.A25696@mandrakesoft.com>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
________________________________________________________________________
Linux-Mandrake Security Update Advisory
________________________________________________________________________
Package name: openssh
Date: October 10th, 2000
Advisory ID: MDKSA-2000:057
Affected versions: 7.0, 7.1
________________________________________________________________________
Problem Description:
A problem exists with openssh's scp program. If a user uses scp to
move files from a server that has been compromised, the operation
can be used to replace arbitrary files on the user's system. The
problem is made more serious by setuid versions of ssh which allow
overwriting any file on the local user's system. If the ssh program
is not setuid or is setuid to someone other than root, the
intrustion is limited to files with write access granted to the
owner of the ssh program. In either case, files can be overwritten
with code allowing others access to the system unexpectedly. While
no fix has been provided for openssh as of yet, the versions of
openssh available for Linux-Mandrake 7.0 and 7.1 were setuid root.
This update removes the setuid bit from the ssh program and limits
the exploitability of scp somewhat. All users of Linux-Mandrake are
encouraged to upgrade to these latest openssh builds.
Linux-Mandrake 7.0 users will also need to upgrade openssl in
order to use the 7.0 update of openssh.
________________________________________________________________________
Please verify these md5 checksums of the updates prior to upgrading to
ensure the integrity of the downloaded package. You can do this by
running the md5sum program on the downloaded package by using
"md5sum package.rpm".
Linux-Mandrake 7.0: 305e0198128f0ff9c1c9292ec09b4dcc
7.0/RPMS/openssh-2.1.1p3-4mdk.i586.rpm
b9926356f70c27be00d2b50c96b11bd0
7.0/RPMS/openssh-askpass-2.1.1p3-4mdk.i586.rpm
c4264c9b9ab857ddd4555c05096e4697
7.0/RPMS/openssh-clients-2.1.1p3-4mdk.i586.rpm
21f1d76dc514f6e59c6023affc80dc54
7.0/RPMS/openssh-server-2.1.1p3-4mdk.i586.rpm
a3dd007c212763d4ece19b50e013edd0
7.0/RPMS/openssl-0.9.5a-3mdk.i586.rpm
b8d23e53945a0c53525701c0ed298d01
7.0/RPMS/openssl-devel-0.9.5a-3mdk.i586.rpm
a6b82e7d0e991b0d169fa00a5aeb8774
7.0/SRPMS/openssh-2.1.1p3-4mdk.src.rpm
Linux-Mandrake 7.1: 859074e6bea599faf97ead477a8e97fe
7.1/RPMS/openssh-2.1.1p3-4mdk.i586.rpm
5df518f2b4cb308fee7b78b127972733
7.1/RPMS/openssh-askpass-2.1.1p3-4mdk.i586.rpm
a00ae71dadecbde77ccd9b4d0d0b818a
7.1/RPMS/openssh-clients-2.1.1p3-4mdk.i586.rpm
8abf7df4ed56bcbb517ebe9b549d2df7
7.1/RPMS/openssh-server-2.1.1p3-4mdk.i586.rpm
a6b82e7d0e991b0d169fa00a5aeb8774
7.1/SRPMS/openssh-2.1.1p3-4mdk.src.rpm
________________________________________________________________________
To upgrade automatically, use « MandrakeUpdate ».
If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and uprade with "rpm -Uvh package_name".
You can download the updates directly from:
ftp://ftp.linux.tucows.com/pub/distributions/Mandrake/Mandrake/updates
ftp://ftp.free.fr/pub/Distributions_Linux/Mandrake/updates
Or try one of the other mirrors listed at:
http://www.linux-mandrake.com/en/ftp.php3.
Updated packages are available in the "updates/[ver]/RPMS/"
directory. For example, if you are looking for an updated RPM
package for Linux-Mandrake 7.1, look for it in "updates/7.1/RPMS/".
Updated source RPMs are available as well, but you generally do not
need to download them.
Please be aware that sometimes it takes the mirrors a few hours to
update, so if you want an immediate upgrade, please use one of the two
above-listed mirrors.
You can view other security advisories for Linux-Mandrake at:
http://www.linux-mandrake.com/en/security/
If you want to report vulnerabilities, please contact
security@linux-mandrake.com
________________________________________________________________________
Linux-Mandrake has two security-related mailing list services that
anyone can subscribe to:
security-announce@linux-mandrake.com
Linux-Mandrake's security announcements mailing list. Only
announcements are sent to this list and it is read-only.
security-discuss@linux-mandrake.com
Linux-Mandrake's security discussion mailing list. This list is
open to anyone to discuss Linux-Mandrake security specifically and
Linux security in general.
To subscribe to either list, send a message to
sympa@linux-mandrake.com
with "subscribe [listname]" in the body of the message.
To remove yourself from either list, send a message to
sympa@linux-mandrake.com
with "unsubscribe [listname]" in the body of the message.
To get more information on either list, send a message to
sympa@linux-mandrake.com
with "info [listname]" in the body of the message.
Optionally, you can use the web interface to subscribe to or
unsubscribe from either list:
http://www.linux-mandrake.com/en/flists.php3#security
________________________________________________________________________
Type Bits/KeyID Date User ID
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<security@linux-mandrake.com>
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(5575407) ------------------------------------------(Ombruten)
5587183 2000-10-12 21:20 /43 rader/ Brevbäraren (som är implementerad i) Python
Mottagare: Bugtraq (import) <13245>
Kommentar till text 5575407 av Brevbäraren (som är implementerad i) Python
Ärende: Re: MDKSA-2000:057 - openssh update
------------------------------------------------------------
From: Markus Friedl <markus.friedl@INFORMATIK.UNI-ERLANGEN.DE>
To: BUGTRAQ@SECURITYFOCUS.COM
Message-ID: <20001012155841.A31538@folly>
hello,
this makes no sense at all. the problem is about 'defects' in
scp/rcp, and has nothing to do with /usr/bin/ssh having sbits turned
off or not.
this advisory is wrong, and missleading at its best.
-markus (@openssh.com)
On Tue, Oct 10, 2000 at 11:51:16AM -0600, Linux Mandrake Security Team wrote:
> ________________________________________________________________________
>
> Package name: openssh
> Date: October 10th, 2000
> Advisory ID: MDKSA-2000:057
>
> Affected versions: 7.0, 7.1
> ________________________________________________________________________
>
> Problem Description:
>
> A problem exists with openssh's scp program. If a user uses scp to
> move files from a server that has been compromised, the operation can
> be used to replace arbitrary files on the user's system. The problem
> is made more serious by setuid versions of ssh which allow overwriting
> any file on the local user's system. If the ssh program is not setuid
> or is setuid to someone other than root, the intrustion is limited to
> files with write access granted to the owner of the ssh program. In
> either case, files can be overwritten with code allowing others access
> to the system unexpectedly. While no fix has been provided for openssh
> as of yet, the versions of openssh available for Linux-Mandrake 7.0 and
> 7.1 were setuid root. This update removes the setuid bit from the ssh
> program and limits the exploitability of scp somewhat. All users of
> Linux-Mandrake are encouraged to upgrade to these latest openssh
> builds. Linux-Mandrake 7.0 users will also need to upgrade openssl in
> order to use the 7.0 update of openssh.
> ________________________________________________________________________
(5587183) ------------------------------------------(Ombruten)