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------BEGIN PGP SIGNED MESSAGE-----
-
-=============================================================================
-FreeBSD-SA-00:40 Security Advisory
- FreeBSD, Inc.
-
-Topic: mopd port allows remote root compromise
-
-Category: ports
-Module: mopd
-Announced: 2000-08-28
-Credits: Matt Power <mhpower@MIT.EDU>, OpenBSD
-Affects: Ports collection prior to the correction date.
-Corrected: 2000-08-09
-Vendor status: Contacted
-FreeBSD only: NO
-
-I. Background
-
-mopd is used for netbooting older DEC machines such as VAXen and
-DECstations.
-
-II. Problem Description
-
-The mopd port contains several remotely exploitable
-vulnerabilities. An attacker exploiting these can execute arbitrary
-code on the local machine as root.
-
-The mopd port is not installed by default, nor is it "part of FreeBSD"
-as such: it is part of the FreeBSD ports collection, which contains
-over 3700 third-party applications in a ready-to-install format. The
-ports collections shipped with FreeBSD 3.5-RELEASE and 4.1-RELEASE
-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
-
-Remote users can execute arbitrary code on the local machine as root.
-
-If you have not chosen to install the mopd port/package, then your
-system is not vulnerable to this problem.
-
-IV. Workaround
-
-One of the following:
-
-1) Deinstall the mopd port/package, if you have installed it.
-
-2) Restrict access to the mopd port using a perimeter firewall, or
-ipfw(8)/ipf(8) on the local machine. Note that users who pass these
-access restrictions may still exploit the vulnerability.
-
-V. Solution
-
-One of the following:
-
-1) Upgrade your entire ports collection and rebuild the mopd port.
-
-2) Deinstall the old package and install a new package dated after the
-correction date, obtained from:
-
-ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/net/mopd-1.2b.tgz
-ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/net/mopd-1.2b.tgz
-ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/net/mopd-1.2b.tgz
-ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/net/mopd-1.2b.tgz
-ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/net/mopd-1.2b.tgz
-
-NOTE: Be sure to check the file creation date on the package, because
-the version number of the software has not changed.
-
-3) download a new port skeleton for the mopd 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-3-stable/devel/portcheckout-2.0.tgz
-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
-
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