CVE-2016-0727

NTP - Local Privilege Escalation

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El script crontab en el paquete ntp en versiones anteriores a 1:4.2.6.p3+dfsg-1ubuntu3.11 en Ubuntu 12.04 LTS, en versiones anteriores a 1: 4.2.6.p5+dfsg-3ubuntu2.14.04.10 en Ubuntu 14.04 LTS, en Ubuntu Wily , Y en versiones anteriores a 1: 4.2.8p4 + dfsg-3ubuntu5.3 en Ubuntu 16.04 LTS permite a los usuarios locales con acceso a la cuenta ntp escribir en archivos arbitrarios y consecuentemente obtener privilegios a través de vectores que implican la limpieza del directorio de estadísticas.

NTP suffers from a privilege escalation vulnerability.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-12-16 CVE Reserved
2016-01-21 First Exploit
2016-10-05 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/81552	Third Party Advisory
http://www.securitytracker.com/id/1034808	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1382369	Issue Tracking

URL	Date	SRC
https://www.exploit-db.com/exploits/41764	2016-01-21
http://packetstormsecurity.com/files/141913/NTP-Privilege-Escalation.html	2024-08-05

URL	Date	SRC
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1528050	2017-04-20

URL	Date	SRC
http://www.ubuntu.com/usn/USN-3096-1	2017-04-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected