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Ubuntu Vivid Upstart Privilege Escalation

Ubuntu Vivid Upstart Privilege Escalation
Posted Mar 2, 2015
Authored by halfdog

Ubuntu Vivid Upstart suffers from a logrotate privilege escalation vulnerability.

tags | exploit
systems | linux, ubuntu
MD5 | 554e49941bf10a5161fb9223087679f8

Ubuntu Vivid Upstart Privilege Escalation

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Hash: SHA1

Although just reported to Ubuntu, this minor dev-branch issue was already made public. As the launchpad/lkml/... feed-miners should not play all the games alone, and as others may want to learn how beginner errors still make it into packages of quite large distributions, enjoy the power of

for session in /run/user/*/upstart/sessions/*
do
env $(cat $session) /sbin/initctl emit rotate-logs >/dev/null 2>&1 || true
done

executed as root. See [1]

hd


[1] http://www.halfdog.net/Security/2015/UpstartLogrotationPrivilegeEscalation/

- --
http://www.halfdog.net/
PGP: 156A AE98 B91F 0114 FE88 2BD8 C459 9386 feed a bee
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