ntp up to 4.2.7 ntpd ntp_crypto.c input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in ntp up to 4.2.7. Affected by this vulnerability is an unknown functionality of the file ntp_crypto.c of the component ntpd. This manipulation causes input validation. The identification of this vulnerability is CVE-2014-9750. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in ntp up to 4.2.7 (Network Management Software). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the file ntp_crypto.c of the component ntpd. The manipulation with an unknown input 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 confidentiality, integrity, and availability. The summary by CVE is:

ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.

The weakness was shared 10/06/2015 (Website). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2014-9750 since 10/04/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 84951 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 256021 (CentOS Security Update for ntp Security Update (CESA-2016:0780)).

Upgrading to version 4.2.8p1 eliminates this vulnerability. It is possible to mitigate the problem by applying the configuration setting Disable Autokey Authentication. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (84951), SecurityFocus (BID 72583†) and Vulnerability Center (SBV-54241†). The entries VDB-68640, VDB-68641 and VDB-78200 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 84951
Nessus File: 🔍
Nessus Risk: 🔍

OpenVAS ID: 800407
OpenVAS Name: NTP Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Upgrade: ntp 4.2.8p1
Config: Disable Autokey Authentication

Timelineinfo

02/04/2015 🔍
02/04/2015 +0 days 🔍
10/04/2015 +242 days 🔍
10/05/2015 +1 days 🔍
10/06/2015 +1 days 🔍
10/06/2015 +0 days 🔍
11/06/2015 +31 days 🔍
06/20/2022 +2418 days 🔍

Sourcesinfo

Advisory: RHSA-2015:1459
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-9750 (🔍)
GCVE (CVE): GCVE-0-2014-9750
GCVE (VulDB): GCVE-100-78199

OVAL: 🔍

SecurityFocus: 72583 - NTP 'ntp_crypto.c' Information Disclosure Vulnerability
Vulnerability Center: 54241 - NTP 4.0 - 4.2.8p Remote DoS and Information Disclosure Vulnerabilities in ntp_crypto.c in ntpd - CVE-2014-9750, Medium

See also: 🔍

Entryinfo

Created: 10/06/2015 11:29
Updated: 06/20/2022 08:21
Changes: 10/06/2015 11:29 (61), 03/11/2018 09:43 (15), 06/20/2022 08:19 (3), 06/20/2022 08:21 (1)
Complete: 🔍
Cache ID: 216:7A4:103

Be aware that VulDB is the high quality source for vulnerability data.

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