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)
127 lines
5.3 KiB
Text
127 lines
5.3 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-02:05 Security Advisory
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FreeBSD, Inc.
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Topic: pine port insecure URL handling [REVISED]
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Category: ports
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Module: pine
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Announced: 2002-01-04
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Revised: 2002-01-10
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Credits: zen-parse <zen-parse@gmx.net>
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Affects: Ports collection prior to the correction date
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Corrected: 2002-01-10 16:47:18 UTC
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FreeBSD only: NO
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0. Revision History
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v1.0 2002-01-04 Initial release.
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v1.1 2002-01-10 Corrected vulnerable versions and the `Corrected details'
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section.
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I. Background
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PINE is an application for reading mail and news.
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II. Problem Description
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The pine port, versions previous to pine-4.44, handles URLs in
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messages insecurely. PINE allows users to launch a web browser to
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visit a URL embedded in a message. Due to a programming error, PINE
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does not properly escape meta-characters in the URL before passing it
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to the command shell as an argument to the web browser.
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The pine 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 6000 third-party applications in a ready-to-install format. The
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ports collection shipped with FreeBSD 4.4 contains this problem since
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it was discovered after the release.
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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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An attacker can supply commands enclosed in single quotes ('') in a
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URL embedded in a message sent to the victim. If the user then
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decides to view the URL, PINE will launch a command shell which will
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then execute the attacker's commands with the victim's privileges. It
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is possible to obfuscate the URL so that it will not necessarily seem
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dangerous to the victim.
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IV. Workaround
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1) Deinstall the pine port/package if you have it installed.
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V. Solution
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1) Upgrade your entire ports collection and rebuild the 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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[i386]
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/pine-4.44.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/pine-4.44.tgz
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[alpha]
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Packages are not automatically generated for the alpha architecture at
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this time due to lack of build resources.
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NOTE: It may be several days before updated packages are available.
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3) Download a new port skeleton for the pine 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-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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VI. Correction details
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The following list contains the $FreeBSD$ revision numbers of each
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file that was corrected in the FreeBSD Ports Collection since
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4.4-RELEASE.
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Path Revision
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- -------------------------------------------------------------------------
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ports/mail/pine4/Makefile 1.61
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ports/mail/pine4/distinfo 1.20
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ports/mail/pine4/files/patch-aa 1.4
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ports/mail/pine4/files/patch-ac 1.11
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ports/mail/pine4/files/patch-af 1.12
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ports/mail/pine4/files/patch-ai 1.11
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ports/mail/pine4/files/patch-aj 1.5
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ports/mail/pine4/files/patch-ak 1.6
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ports/mail/pine4/files/patch-al 1.11
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ports/mail/pine4/files/patch-am 1.6
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ports/mail/pine4/files/patch-an 1.5
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ports/mail/pine4/files/patch-ap 1.3
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ports/mail/pine4/files/patch-at 1.6
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ports/mail/pine4/files/patch-au 1.4
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ports/mail/pine4/files/patch-ax 1.5
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ports/mail/pine4/files/patch-az 1.3
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ports/mail/pine4/files/patch-be 1.1
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ports/mail/pine4/files/patch-bf 1.1
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ports/mail/pine4/files/patch-bg 1.1
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ports/mail/pine4/files/patch-reply.c 1.2
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- -------------------------------------------------------------------------
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