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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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        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY CONFNAME "mandos.conf">
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<!ENTITY CONFPATH "<filename>/etc/mandos/mandos.conf</filename>">
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<!ENTITY TIMESTAMP "2015-04-02">
 
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<!ENTITY TIMESTAMP "2013-10-23">
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<!ENTITY % common SYSTEM "common.ent">
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%common;
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]>
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interface = eth0
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address = fe80::aede:48ff:fe71:f6f2
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port = 1025
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debug = True
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priority = SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA
 
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debug = true
 
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priority = SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP
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servicename = Daena
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use_dbus = False
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use_ipv6 = True