ntp up to 4.2.8p11 ntpd Timestamp input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in ntp up to 4.2.8p11. This vulnerability affects unknown code of the component ntpd. This manipulation as part of Timestamp causes input validation. The identification of this vulnerability is CVE-2018-7184. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in ntp up to 4.2.8p11 (Network Management Software). Affected by this vulnerability is an unknown code of the component ntpd. The manipulation as part of a Timestamp leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity, and availability. The summary by CVE is:

ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.

The bug was discovered 02/28/2018. The weakness was shared 03/06/2018 as confirmed posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2018-7184 since 02/16/2018. The exploitation appears to be easy. The attack can be launched remotely. A single authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 107046 (FreeBSD : ntp -- multiple vulnerabilities (af485ef4-1c58-11e8-8477-d05099c0ae8c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43630 (Juniper Junos Multiple vulnerabilities in NTP (JSA10898)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107046) and SecurityFocus (BID 103192†). The entries VDB-82983, VDB-114138, VDB-114140 and VDB-114137 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 107046
Nessus Name: FreeBSD : ntp -- multiple vulnerabilities (af485ef4-1c58-11e8-8477-d05099c0ae8c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865719
OpenVAS Name: Fedora Update for ntp FEDORA-2018-de113aeac6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/16/2018 🔍
02/27/2018 +11 days 🔍
02/28/2018 +1 days 🔍
02/28/2018 +0 days 🔍
02/28/2018 +0 days 🔍
03/06/2018 +6 days 🔍
03/06/2018 +0 days 🔍
03/07/2018 +1 days 🔍
01/15/2025 +2506 days 🔍

Sourcesinfo

Advisory: SA_18_13⛔
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-7184 (🔍)
GCVE (CVE): GCVE-0-2018-7184
GCVE (VulDB): GCVE-100-114139

OVAL: 🔍

SecurityFocus: 103192 - NTP CVE-2018-7184 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 03/07/2018 07:51
Updated: 01/15/2025 04:25
Changes: 03/07/2018 07:51 (75), 01/11/2020 08:13 (5), 02/17/2023 08:44 (4), 02/17/2023 08:49 (1), 01/15/2025 04:25 (27)
Complete: 🔍
Cache ID: 216:4C9:103

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