3571e53040
patches for easier mirroring, to eliminate a special copy, to make www.freebsd.org/security a full copy of security.freebsd.org and be eventually be the same. For now files are just sitting there. The symlinks are missing. Discussed on: www (repository location) Discussed with: simon (so)
94 lines
3.7 KiB
Text
94 lines
3.7 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:65 Security Advisory
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FreeBSD, Inc.
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Topic: xfce allows local X session compromise
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Category: ports
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Module: xfce
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Announced: 2000-11-06
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Credits: Nicholas Brawn <nickbrawn@ONETEL.COM>
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Affects: Ports collection prior to the correction date.
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Corrected: 2000-11-01
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Vendor status: Updated version released
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FreeBSD only: NO
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I. Background
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xfce is a window manager/desktop environment for the X Windows system.
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II. Problem Description
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Versions of xfce prior to 3.52 contain a startup script which
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incorrectly allows access to the X display to all other users on the
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local system. Such users are able to monitor and control the contents
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of the display window as well as monitoring input from keyboard and
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mouse devices. For example, this allows them to monitor passphrases
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typed into a terminal window, among other possibilities.
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The xfce port is not installed by default, nor is it "part of FreeBSD"
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as such: it is part of the FreeBSD ports collection, which contains
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over 4100 third-party applications in a ready-to-install format. The
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ports collections shipped with FreeBSD 3.5.1 and 4.1.1 are vulnerable
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to this problem since it was discovered after the releases, but it was
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corrected prior to the release of FreeBSD 4.2.
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FreeBSD makes no claim about the security of these third-party
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applications, although an effort is underway to provide a security
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audit of the most security-critical ports.
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III. Impact
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Local users can monitor and control the contents of the X display
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running xfce, as well as input devices such as mice and keyboards.
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IV. Workaround
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Deinstall the xfce port/package, if you you have installed it, or
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remove the lines containing 'xhost +$HOSTNAME' in the following files:
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/usr/X11R6/etc/xfce/xinitrc
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/usr/X11R6/etc/xfce/xinitrc.mwm
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V. Solution
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One of the following:
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1) Upgrade your entire ports collection and rebuild the xfce port.
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2) Deinstall the old package and install a new package dated after the
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correction date, obtained from the following directories:
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/x11-wm/xfce-3.12.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/x11-wm/xfce-3.12.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/x11-wm/xfce-3.12.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/x11-wm/xfce-3.12.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/x11-wm/xfce-3.12.tgz
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3) download a new port skeleton for the xfce port from:
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http://www.freebsd.org/ports/
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and use it to rebuild the port.
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4) Use the portcheckout utility to automate option (3) above. The
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portcheckout port is available in /usr/ports/devel/portcheckout or the
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package can be obtained from:
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz
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