Vulnerability CVE-2016-0727
Published: 2017-04-14

Description:
The crontab script in the ntp package before 1:4.2.6.p3+dfsg-1ubuntu3.11 on Ubuntu 12.04 LTS, before 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 on Ubuntu 14.04 LTS, on Ubuntu Wily, and before 1:4.2.8p4+dfsg-3ubuntu5.3 on Ubuntu 16.04 LTS allows local users with access to the ntp account to write to arbitrary files and consequently gain privileges via vectors involving statistics directory cleanup.

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Canonical -> Ubuntu linux 

 References:
http://packetstormsecurity.com/files/141913/NTP-Privilege-Escalation.html
http://www.securityfocus.com/bid/81552
http://www.securitytracker.com/id/1034808
http://www.ubuntu.com/usn/USN-3096-1
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1528050
https://bugzilla.redhat.com/show_bug.cgi?id=1382369
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