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
3.3 KiB
Text
94 lines
3.3 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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=============================================================================
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FreeBSD-SA-00:16 Security Advisory
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FreeBSD, Inc.
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Topic: golddig port allows users to overwrite local files
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Category: ports
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Module: golddig
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Announced: 2000-05-09
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Credits: Discovered during internal ports collection auditing.
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Affects: Ports collection.
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Corrected: 2000-04-30
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Vendor status: Email bounced.
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FreeBSD only: NO
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I. Background
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Golddig is an X11 game provided as part of the FreeBSD ports collection.
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II. Problem Description
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The golddig port erroneously installs a level-creation utility setuid
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root, which allows users to overwrite the contents of arbitrary local
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files. It is not believed that any elevation of privileges is possible
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with this vulnerability because the contents of the file are a textual
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representation of a golddig game level which is highly constrained.
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The golddig port is not installed by default, nor is it "part of
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FreeBSD" as such: it is part of the FreeBSD ports collection, which
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contains over 3200 third-party applications in a ready-to-install
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format. The ports collection shipped with FreeBSD 4.0 contains this
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problem since 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 unprivileged local user can overwrite the contents of any file,
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although they are restricted in the possible contents of the new file.
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If you have not chosen to install the golddig port/package, then your
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system is not vulnerable to this problem.
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IV. Workaround
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One of the following:
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1) Deinstall the golddig port/package, if you you have installed it.
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2) Remove the setuid bit from /usr/local/bin/makelev. This will mean
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unprivileged users cannot create or modify golddig levels except in
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their own directories.
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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 golddig port.
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2) Reinstall a new package dated after the correction date, obtained from:
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/games/golddig-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/games/golddig-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/games/golddig-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/games/golddig-2.0.tgz
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ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/games/golddig-2.0.tgz
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Note: it may be several days before the updated packages are available.
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3) download a new port skeleton for the golddig 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/packages/devel/portcheckout-1.0.tgz
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