CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

A vulnerability was found in ntpd up to 4.2.8p8 on Windows (Network Management Software). It has been classified as problematic. Affected is an unknown functionality of the component UDP Packet Handler. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. CVE summarizes:

ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.

The bug was discovered 11/21/2016. The weakness was shared 01/13/2017 (Website). The advisory is available at nwtime.org. This vulnerability is traded as CVE-2016-9312 since 11/14/2016. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 95575 (Network Time Protocol Daemon (ntpd) 4.x < 4.2.8p9 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc. and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371402 (Cisco UCS 6200 Series Fabric Interconnects Multiple Vulnerabilities in Network Time Protocol Daemon (CSCvc23476)).

Upgrading to version 4.2.8p9 eliminates this vulnerability.It is possible to mitigate the weakness by firewalling udp. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (95575). The entries 93745, 95317, 95318 and 95319 are related to this item.

Productinfo

Type

• Network Management Software

Name

• ntpd

Version

• 4.2.8p8

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 95575
Nessus Name: Network Time Protocol Daemon (ntpd) 4.x < 4.2.8p9 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ntpd 4.2.8p9
Firewalling: 🔍

Timelineinfo

11/14/2016 🔍
11/21/2016 +7 days 🔍
11/21/2016 +0 days 🔍
11/21/2016 +0 days 🔍
12/06/2016 +15 days 🔍
01/13/2017 +38 days 🔍
01/13/2017 +0 days 🔍
01/15/2017 +2 days 🔍
10/28/2022 +2112 days 🔍

Sourcesinfo

Advisory: nwtime.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9312 (🔍)
SecurityTracker: 1037354
SecurityFocus: 94450 - NTP CVE-2016-9312 Denial of Service Vulnerability
OSVDB: - CVE-2016-9312 - NTP - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 01/15/2017 10:39
Updated: 10/28/2022 18:05
Changes: 01/15/2017 10:39 (70), 07/21/2020 17:46 (7), 10/28/2022 18:05 (3)
Complete: 🔍

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