GNU bug report logs -
#55450
bitlbee running as root
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Reported by: Ludovic Courtès <ludo <at> gnu.org>
Date: Mon, 16 May 2022 13:31:01 UTC
Severity: normal
Tags: security
Done: Ludovic Courtès <ludo <at> gnu.org>
Bug is archived. No further changes may be made.
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Report forwarded
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bug-guix <at> gnu.org
:
bug#55450
; Package
guix
.
(Mon, 16 May 2022 13:31:01 GMT)
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Acknowledgement sent
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Ludovic Courtès <ludo <at> gnu.org>
:
New bug report received and forwarded. Copy sent to
bug-guix <at> gnu.org
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(Mon, 16 May 2022 13:31:01 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
Starting from commit 211fe3f66e6dfdaa64974931c458ab1d92afc182, if PID 1
is Shepherd 0.9.0, the bitlbee daemon was started on-demand as an inetd
service.
However, due to a logic bug, it was running as root (in a separate user
namespace though) instead of running as “bitlbee”. The bug is that we
were spawning “bitlbee -u bitlbee” as root; normally, bitlbee would
setuid to the “bitlbee” user early on, but since it was in a separate
namespace and with a minimal /etc/passwd, it couldn’t do anything and
kept the current UID (that UID was 1000 inside the user namespace, but 0
outside).
Fix coming soon…
Ludo’.
Added tag(s) security.
Request was from
Ludovic Courtès <ludo <at> gnu.org>
to
control <at> debbugs.gnu.org
.
(Mon, 16 May 2022 13:34:01 GMT)
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Ludovic Courtès <ludo <at> gnu.org>
:
You have taken responsibility.
(Mon, 16 May 2022 13:54:02 GMT)
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Ludovic Courtès <ludo <at> gnu.org>
:
bug acknowledged by developer.
(Mon, 16 May 2022 13:54:02 GMT)
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Message #12 received at 55450-done <at> debbugs.gnu.org (full text, mbox):
Ludovic Courtès <ludo <at> gnu.org> skribis:
> Starting from commit 211fe3f66e6dfdaa64974931c458ab1d92afc182, if PID 1
> is Shepherd 0.9.0, the bitlbee daemon was started on-demand as an inetd
> service.
>
> However, due to a logic bug, it was running as root (in a separate user
> namespace though) instead of running as “bitlbee”. The bug is that we
> were spawning “bitlbee -u bitlbee” as root; normally, bitlbee would
> setuid to the “bitlbee” user early on, but since it was in a separate
> namespace and with a minimal /etc/passwd, it couldn’t do anything and
> kept the current UID (that UID was 1000 inside the user namespace, but 0
> outside).
Fixed by commit ecfcdff23a5ce390a7edc019c1f1216c4843dc04: the bitlbee
process is now started as “bitlbee” right from the start.
I reviewed other users of ‘least-authority-wrapper’ that were recently
introduced and didn’t see other mistakes of that kind. You’re welcome
to take another look to make sure!
Ludo’.
bug archived.
Request was from
Debbugs Internal Request <help-debbugs <at> gnu.org>
to
internal_control <at> debbugs.gnu.org
.
(Tue, 14 Jun 2022 11:24:06 GMT)
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This bug report was last modified 1 year and 287 days ago.
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