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Currently, PrivateTmp=yes means that the service cannot see the /tmp shared by rest of the system and is isolated from other services using PrivateTmp, but users can access and modify /tmp as seen by the service. Move the private /tmp and /var/tmp directories into a 0077-mode directory. This way unpriviledged users on the system cannot see (or modify) /tmp as seen by the service.
19 lines
626 B
Plaintext
19 lines
626 B
Plaintext
# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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# See tmpfiles.d(5) for details
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# Clear tmp directories separately, to make them easier to override
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d /tmp 1777 root root 10d
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d /var/tmp 1777 root root 30d
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# Exclude namespace mountpoints created with PrivateTmp=yes
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x /tmp/systemd-private-*
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x /var/tmp/systemd-private-*
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X /tmp/systemd-private-*/tmp
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X /var/tmp/systemd-private-*/tmp
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