ntp 4.2.8p5 Authenticated Broadcast Mode data processing

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in ntp 4.2.8p5. This impacts an unknown function of the component Authenticated Broadcast Mode. Executing a manipulation can lead to data processing. This vulnerability is registered as CVE-2015-7979. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in ntp 4.2.8p5 (Network Management Software). This vulnerability affects an unknown part of the component Authenticated Broadcast Mode. The manipulation with an unknown input leads to a data processing vulnerability. The CWE definition for the vulnerability is CWE-19. As an impact it is known to affect integrity, and availability. CVE summarizes:

NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client.

The weakness was published 01/19/2016 by Cisco with Boston University as confirmed security notice (Website). The advisory is available at support.ntp.org. This vulnerability was named CVE-2015-7979 since 10/23/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 88054 (Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p6 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 330001 (IBM AIX NTP Multiple Vulnerabilities).

Upgrading to version 4.2.8p6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (110024), Tenable (88054), SecurityFocus (BID 81816†) and Vulnerability Center (SBV-56275†). Similar entries are available at VDB-80644, VDB-80645, VDB-80646 and VDB-80647. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.8
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 88054
Nessus Name: Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p6 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900567
OpenVAS Name: Fedora Update for ntp FEDORA-2016-8
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: ntp 4.2.8p6

Timelineinfo

10/23/2015 🔍
01/19/2016 +88 days 🔍
01/19/2016 +0 days 🔍
01/20/2016 +1 days 🔍
01/21/2016 +1 days 🔍
01/25/2016 +4 days 🔍
01/26/2016 +1 days 🔍
01/29/2016 +3 days 🔍
01/30/2017 +367 days 🔍
07/06/2022 +1983 days 🔍

Sourcesinfo

Advisory: RHSA-2016:1141
Researcher: Cisco
Organization: Boston University
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7979 (🔍)
GCVE (CVE): GCVE-0-2015-7979
GCVE (VulDB): GCVE-100-80650

OVAL: 🔍

X-Force: 110024 - NTP authenticated broadcast mode security bypass
SecurityFocus: 81816 - NTP CVE-2015-7979 Denial of Service Vulnerability
SecurityTracker: 1034782
Vulnerability Center: 56275 - [cisco-sa-20160127-ntpd] Cisco Multiple Products Remote DoS and Security Bypass due to an Issue in NTP Server - CVE-2015-7979, High

See also: 🔍

Entryinfo

Created: 01/25/2016 13:50
Updated: 07/06/2022 08:51
Changes: 01/25/2016 13:50 (72), 07/22/2018 10:23 (19), 07/06/2022 08:51 (5)
Complete: 🔍
Cache ID: 216:105:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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