Ubuntu Vivid Upstart Privilege Escalation

2015.03.03

Credit: halfdog

Risk: Medium

Local: No

Remote: Yes

CVE: N/A

CWE: CWE-264

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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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References:

http://www.halfdog.net/Security/2015/UpstartLogrotationPrivilegeEscalation/

See this note in RAW Version

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Ubuntu Vivid Upstart Privilege Escalation

References:

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