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____________________________________________________________
__________________
SUSE Security Announcement
Package: rug
Announcement ID: SUSE-SA:2006:029
Date: Wed, 31 May 2006 11:00:00
+0000
Affected Products: Novell Linux Desktop 9
SUSE SLES 9
Vulnerability Type: remote command execution
Severity (1-10): 10
SUSE Default Package: yes
Cross-References: CVE-2006-2703
Content of This Advisory:
1) Security Vulnerability Resolved:
- SSL man-in-the-middle attack
- world-readable configuration file
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and
Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional
Information
____________________________________________________________
__________________
1) Problem Description and Brief Discussion
RedCarpet allows the remote administration of systems by
running the rc
daemon (rcd) on the server side to accept SSL encrypted
commands from the
client.
The tool rug is such a client application that can be run
from command-line.
The client does not verify the SSL certificates received
from the server
and is therefore vulnerable to a man-in-the-middle attack
which allows an
attacker to read traffic and to insert commands.
Additionally the permissions of /etc/ximian/rcd.conf were
changed to avoid
the possible leakage of the rc password.
2) Solution or Work-Around
No work-around is known for the man-in-the-middle attack.
The permissions of the configuration file can be changed
using the chmod(1) command as root.
3) Special Instructions and Notes
Please restart the redcarpet daemon (rcd) after
installing the
update.
4) Package Location and Checksums
The preferred method for installing security updates is
to use the YaST
Online Update (YOU) tool. YOU detects which updates are
required and
automatically performs the necessary steps to verify and
install them.
Alternatively, download the update packages for your
distribution manually
and verify their integrity by the methods listed in
Section 6 of this
announcement. Then install the packages using the command
rpm -Fhv <file.rpm>
to apply the update, replacing <file.rpm> with the
filename of the
downloaded RPM package.
Our maintenance customers are notified individually. The
packages are
offered for installation from the maintenance web:
http://support.
novell.com/cgi-bin/search/searchtid.cgi?psdb/2dfe32452eaf361
3da33cce7326c9b95.html
____________________________________________________________
__________________
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
____________________________________________________________
__________________
6) Authenticity Verification and Additional Information
- Announcement authenticity verification:
SUSE security announcements are published via mailing
lists and on Web
sites. The authenticity and integrity of a SUSE security
announcement is
guaranteed by a cryptographic signature in each
announcement. All SUSE
security announcements are published with a valid
signature.
To verify the signature of the announcement, save it as
text into a file
and run the command
gpg --verify <file>
replacing <file> with the name of the file where
you saved the
announcement. The output for a valid signature looks
like:
gpg: Signature made <DATE> using RSA key ID
3D25D3D9
gpg: Good signature from "SuSE Security Team
<security suse.de>"
where <DATE> is replaced by the date the document
was signed.
If the security team's key is not contained in your key
ring, you can
import it from the first installation CD. To import the
key, use the
command
gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc
- Package authenticity verification:
SUSE update packages are available on many mirror FTP
servers all over the
world. While this service is considered valuable and
important to the free
and open source software community, the authenticity and
the integrity of
a package needs to be verified to ensure that it has not
been tampered
with.
There are two verification methods that can be used
independently from
each other to prove the authenticity of a downloaded
file or RPM package:
1) Using the internal gpg signatures of the rpm package
2) MD5 checksums as provided in this announcement
1) The internal rpm package signatures provide an easy
way to verify the
authenticity of an RPM package. Use the command
rpm -v --checksig <file.rpm>
to verify the signature of the package, replacing
<file.rpm> with the
filename of the RPM package downloaded. The package
is unmodified if it
contains a valid signature from buildsuse.de
with the key ID 9C800ACA.
This key is automatically imported into the RPM
database (on
RPMv4-based distributions) and the gpg key ring of
'root' during
installation. You can also find it on the first
installation CD and at
the end of this announcement.
2) If you need an alternative means of verification, use
the md5sum
command to verify the authenticity of the packages.
Execute the command
md5sum <filename.rpm>
after you downloaded the file from a SUSE FTP server
or its mirrors.
Then compare the resulting md5sum with the one that
is listed in the
SUSE security announcement. Because the announcement
containing the
checksums is cryptographically signed (by
securitysuse.de), the
checksums show proof of the authenticity of the
package if the
signature of the announcement is valid. Note that the
md5 sums
published in the SUSE Security Announcements are
valid for the
respective packages only. Newer versions of these
packages cannot be
verified.
- SUSE runs two security mailing lists to which any
interested party may
subscribe:
suse-securitysuse.com
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this
list.
To subscribe, send an e-mail to
<suse-security-subscribesuse.com>.
suse-security-announcesuse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to
this list.
To subscribe, send an e-mail to
<suse-security-announce-subscribesuse.com>.
For general information or the frequently asked
questions (FAQ),
send mail to <suse-security-infosuse.com> or
<suse-security-faqsuse.com>.
============================================================
=========
SUSE's security contact is <securitysuse.com> or <securitysuse.de>.
The <securitysuse.de> public key is listed below.
============================================================
=========
____________________________________________________________
__________________
The information in this advisory may be distributed or
reproduced,
provided that the advisory is not modified in any way.
In particular, the
clear text signature should show proof of the
authenticity of the text.
SUSE Linux Products GmbH provides no warranties of any
kind whatsoever
with respect to the information contained in this
security advisory.
Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team
<securitysuse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key
<buildsuse.de>
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