CVE-2016-0727 — HIGH (7.8) — White Hats Nepal

Vulnerability 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.

CVSS Score

7.8

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Canonical	Ubuntu Linux	12.04

Related Weaknesses (CWE)

CWE-264

References

http://packetstormsecurity.com/files/141913/NTP-Privilege-Escalation.htmlExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/81552Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034808Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3096-1Vendor Advisory
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1528050Issue TrackingPatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1382369Issue Tracking
http://packetstormsecurity.com/files/141913/NTP-Privilege-Escalation.htmlExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/81552Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034808Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-3096-1Vendor Advisory
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1528050Issue TrackingPatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1382369Issue Tracking

FAQ

What is CVE-2016-0727?

CVE-2016-0727 is a vulnerability with a CVSS score of 7.8 (HIGH). 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-3u...

How severe is CVE-2016-0727?

CVE-2016-0727 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-0727?

Check the references section above for vendor advisories and patch information. Affected products include: Canonical Ubuntu Linux.