ntp up to 4.2.8p9 ntpq memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in ntp up to 4.2.8p9. It has been classified as critical. This affects an unknown part of the component ntpq. This manipulation causes memory corruption. This vulnerability is handled as CVE-2017-6460. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in ntp up to 4.2.8p9 (Network Management Software). Affected by this vulnerability is an unknown code block of the component ntpq. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in the reslist function in ntpq in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote servers have unspecified impact via a long flagstr variable in a restriction list response.

The bug was discovered 03/21/2017. The weakness was released 03/21/2017 as March 2017 ntp-4.2.8p10 NTP Security Vulnerability Announcement as confirmed release notes (Website). It is possible to read the advisory at support.ntp.org. This vulnerability is known as CVE-2017-6460 since 03/03/2017. The attack can be launched remotely. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 97988 (Network Time Protocol Daemon (ntpd) 4.x < 4.2.8p10 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 38665 (Network Time Protocol Daemon ntpd Multiple Vulnerabilities).

Upgrading to version 4.2.8p10 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 Tenable (97988), SecurityFocus (BID 97052†) and SecurityTracker (ID 1038123†). Entries connected to this vulnerability are available at VDB-98543, VDB-98544, VDB-98545 and VDB-98546. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: 97988
Nessus Name: Network Time Protocol Daemon (ntpd) 4.x < 4.2.8p10 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800407
OpenVAS Name: NTP Multiple Denial-of-Service Vulnerabilities -Mar17
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 4.2.8p10

Timelineinfo

03/03/2017 🔍
03/21/2017 +18 days 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
03/21/2017 +0 days 🔍
03/24/2017 +3 days 🔍
03/27/2017 +3 days 🔍
03/27/2017 +0 days 🔍
03/27/2017 +0 days 🔍
09/14/2020 +1267 days 🔍

Sourcesinfo

Advisory: March 2017 ntp-4.2.8p10 NTP Security Vulnerability Announcement
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6460 (🔍)
GCVE (CVE): GCVE-0-2017-6460
GCVE (VulDB): GCVE-100-98551
SecurityFocus: 97052 - NTP CVE-2017-6460 Stack Buffer Overflow Vulnerability
OSVDB: - CVE-2017-6460 - NTP - Buffer Overflow Issue
SecurityTracker: 1038123

See also: 🔍

Entryinfo

Created: 03/27/2017 08:59
Updated: 09/14/2020 12:02
Changes: 03/27/2017 08:59 (80), 09/14/2020 12:02 (6)
Complete: 🔍
Cache ID: 216::103

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