/mandos/release

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  • Committer: Teddy Hogeborn
  • Date: 2014-06-08 03:10:08 UTC
  • mto: (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 317.
  • Revision ID: teddy@recompile.se-20140608031008-mc9bd7b024a3q0y0
Address a very theoretical possible security issue in mandos-client.

If there were to run some sort of "cleaner" process for /run/tmp (or
/tmp), and mandos-client were to run for long enough for that cleaner
process to remove the temporary directory for GPGME, there was a
possibility that another unprivileged process could trick the (also
unprivileged) mandos-client process to remove other files or symlinks
which the unprivileged mandos-client process was allowed to remove.
This is not currently known to have been exploitable, since there are
no known initramfs environments running such cleaner processes.

* plugins.d/mandos-client.c (main): Use O_NOFOLLOW when opening
                                    tempdir for cleaning.

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TODO
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-*- org -*-
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* GIT
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** General: [[https://www.atlassian.com/git/workflows][Git Workflows]], [[http://gitimmersion.com/][Git Immersion]]
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** Intro: [[http://www.eyrie.org/~eagle/notes/debian/git.html][Using Git for Debian Packaging]]
 
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** General: [[https://www.atlassian.com/git/workflows][Git Workflows]], [[http://gitimmersion.com/][Git Immersion]], [[https://news.ycombinator.com/item?id=7036628][Simple git workflow is simple]]
 
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** Intro: [[http://www.eyrie.org/~eagle/notes/debian/git.html#combine][Using Git for Debian Packaging]]
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** Use: [[https://honk.sigxcpu.org/piki/projects/git-buildpackage/][git-buildpackage]]
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** Migration
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   tailor?
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   Using bzr-fastimport: [[http://www.fusonic.net/en/blog/2013/03/26/migrating-from-bazaar-to-git/][Migrating from Bazaar to Git]]
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** Unresolved: [[http://jameswestby.net/bzr/builddeb/user_manual/split.html][bzr builddeb split mode]]
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   Maybe: [[http://honk.sigxcpu.org/projects/git-buildpackage/manual-html/gbp.import.html#GBP.IMPORT.UPSTREAM.GIT.NOTARBALL>][git-buildpackage - No upstream tarballs]]
 
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   Maybe: [[http://honk.sigxcpu.org/projects/git-buildpackage/manual-html/gbp.import.html#GBP.IMPORT.UPSTREAM.GIT.NOTARBALL][git-buildpackage - No upstream tarballs]]
 
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   [[http://www.python.org/dev/peps/pep-0374/][PEP 374 - Choosing a distributed VCS for the Python project]]
 
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   [[http://www.emacswiki.org/emacs/GitForEmacsDevs][Git For Emacs Devs]]
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* [[http://www.undeadly.org/cgi?action=article&sid=20110530221728][OpenBSD]]
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* mandos-client
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** TODO [#B] Use capabilities instead of seteuid().
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** TODO [#B] Use struct sockaddr_storage instead of a union
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** TODO [#B] Use getaddrinfo(hints=AI_NUMERICHOST) instead of inet_pton()
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** TODO [#B] Use getnameinfo(serv=NULL, NI_NUMERICHOST) instead of inet_ntop()
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** TODO [#B] Prefer /run/tmp over /tmp, if it exists
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** TODO [#C] Make start_mandos_communication() take "struct server".
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* splashy
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* plugin-runner
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** TODO handle printing for errors for plugins
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*** Hook up stderr of plugins, buffer them, and prepend "Mandos Plugin [plugin name]"
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** TODO [#B] use scandir(3) instead of readdir(3)
 
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** TODO [#B] use scandirat(3) instead of readdir(3)
 
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*** Must wait until GNU libc 2.15
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** TODO [#C] use same file name rules as run-parts(8)
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** kernel command line option for debug info
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** TODO [#B] Use openat()
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* mandos (server)
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** TODO [#B] Log level                                                    :BUGS:
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** TODO [#B] "--test" option
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   For testing decryption before rebooting.
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* Makefile
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** TODO [#C] Implement DEB_BUILD_OPTIONS
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   http://www.debian.org/doc/debian-policy/ch-source.html#s-debianrules-options
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* Package
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** /usr/share/initramfs-tools/hooks/mandos
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*** TODO [#C] use same file name rules as run-parts(8)