-----BEGIN PGP SIGNED MESSAGE-----

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                 ESB-2001.112 -- FreeBSD-SA-01:27.cfengine
             cfengine port contains remote root vulnerability
                               13 March 2001

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                cfengine
Vendor:                 FreeBSD Ports Collection
Operating System:       FreeBSD
                        BSD
                        Linux
Platform:               i386
                        Alpha
Impact:                 Root Compromise
Access Required:        Remote

Ref:                    ESB-2000.314

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----

=============================================================================
FreeBSD-SA-01:27                                           Security Advisory
                                                                FreeBSD, Inc.

Topic:          cfengine port contains remote root vulnerability

Category:       ports
Module:         cfengine
Announced:      2001-03-12
Credits:        Pekka Savola <pekkas@NETCORE.FI>
Affects:        Ports collection prior to the correction date.
Corrected:      2001-01-21
Vendor status:  Updated version released
FreeBSD only:   NO

I.   Background

cfengine is a system for automating the configuration and maintenance
of large networks.

II.  Problem Description

The cfengine port, versions prior to 1.6.1, contained several format
string vulnerabilities which allow a remote attacker to execute
arbitrary code on the local system as the user running cfengine,
usually user root.

The cfengine port is not installed by default, nor is it "part of
FreeBSD" as such: it is part of the FreeBSD ports collection, which
contains nearly 4700 third-party applications in a ready-to-install
format.  The ports collections shipped with FreeBSD 3.5.1 and 4.2
contain this problem since it was discovered after the releases.

FreeBSD makes no claim about the security of these third-party
applications, although an effort is underway to provide a security
audit of the most security-critical ports.

III. Impact

Arbitrary remote users can execute code on the local system as the
user running cfengine, usually user root.

If you have not chosen to install the cfengine port/package, then your
system is not vulnerable to this problem.

IV.  Workaround

One of the following:

1) Deinstall the cfengine port/package, if you have installed it.

2) Implement access controls on connections to the cfengine server,
either at the application level using the cfengine configuration file,
or by using network-level packet filtering on the local system using
ipfw(8)/ipf(8), or on the perimeter firewalls.

V.   Solution

One of the following:

1) Upgrade your entire ports collection and rebuild the cfengine port.

2) Deinstall the old package and install a new package dated after the
correction date, obtained from:

[i386]
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/sysutils/cfengine-1.6.3.tar.gz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/sysutils/cfengine-1.6.3.tar.gz

[alpha]
Packages are not automatically generated for the alpha architecture at
this time due to lack of build resources.

3) download a new port skeleton for the cfengine port from:

http://www.freebsd.org/ports/

and use it to rebuild the port.

4) Use the portcheckout utility to automate option (3) above. The
portcheckout port is available in /usr/ports/devel/portcheckout or the
package can be obtained from:

ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz
ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.4 (FreeBSD)
Comment: For info see http://www.gnupg.org

iQCVAwUBOq1dclUuHi5z0oilAQFhhAQApfRMj88GYMKiTtLeyjWeaDLFIlDjUTl4
fF1QQNzetOSIoVjA+CsbkTgsX/c8B6Lc7BuTI7K3BLKUu2QC2GbYkn5/ymCdYQeE
dW2S00bMdBP6GwURAdFnizezkZq5Y3oEVYXVL4s91M9jb3wCwNOwnbfKH/aegFvL
ZOjDvMUdjb0=
=yzjS
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content.  The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

	http://www.auscert.org.au/Information/advisories.html

If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).

Internet Email: auscert@auscert.org.au
Facsimile:	(07) 3365 7031
Telephone:	(07) 3365 4417 (International: +61 7 3365 4417)
		AusCERT personnel answer during Queensland business hours
		which are GMT+10:00 (AEST).
		On call after hours for emergencies.

-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key

iQCVAwUBOq4HFyh9+71yA2DNAQF+rAP9HHOreIhH6Z6/MXrh32bt0wWZ8cEcwueo
vJbJPYG76TDwqf2ZcpkhenajJ/chjrn/pLrsb0oP4zNZOVCQtZzoihaDaQNDLbk3
a8UiP3/h4T/ZGUo0OxKV8bPG4iJZlclH6eJxOMJNpwtg1rhsvWTXiufGdgUDn7b/
dKaCpKMcypo=
=43/a
-----END PGP SIGNATURE-----