CVE-2016-9042

CVSS V2 Medium 4.3 CVSS V3 Medium 5.9

Description

An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.

Overview

CVE ID
CVE-2016-9042

Assigner
talos-cna@cisco.com

Vulnerability Status
Modified

Published Version
2018-06-04T20:29:00

Last Modified Date
2022-04-19T20:15:12

Weakness Enumerations

CWE	URL
CWE-20	http://cwe.mitre.org/data/definitions/20.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:a:ntp:ntp:4.2.8:p9::::::	1	OR
		AND
cpe:2.3:o:freebsd:freebsd:10.0:::::::*	1	OR
cpe:2.3:o:freebsd:freebsd:11.0:::::::*	1	OR
		AND
cpe:2.3:a:hpe:hpux-ntp::::::::	1	OR	c.4.2.8.4.0
		AND
cpe:2.3:o:siemens:simatic_net_cp_443-1_opc_ua_firmware::::::::	1	OR
cpe:2.3:h:siemens:simatic_net_cp_443-1_opc_ua:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
4.3

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
HIGH

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.9

Base Severity
MEDIUM

Exploitability Score
2.2

Impact Score
3.6

References

Reference URL	Reference Tags
https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0260	Exploit Mitigation Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc	Third Party Advisory
http://www.securitytracker.com/id/1039427	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038123	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/97046	Permissions Required Third Party Advisory VDB Entry
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf	Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10201
http://seclists.org/fulldisclosure/2017/Nov/7
http://seclists.org/fulldisclosure/2017/Sep/62
https://support.f5.com/csp/article/K39041624
http://www.securityfocus.com/archive/1/540403/100/0/threaded
https://bto.bluecoat.com/security-advisory/sa147
http://www.securityfocus.com/archive/1/archive/1/540464/100/0/threaded
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/
http://packetstormsecurity.com/files/142101/FreeBSD-Security-Advisory-FreeBSD-SA-17-03.ntp.html
http://www.securityfocus.com/archive/1/archive/1/540403/100/0/threaded
http://packetstormsecurity.com/files/142284/Slackware-Security-Advisory-ntp-Updates.html
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
http://www.ubuntu.com/usn/USN-3349-1
https://support.apple.com/kb/HT208144

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2016-9042
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9042

History

Created	Old Value	New Value	Data Type	Notes
2022-04-20 17:00:24				Added to TrackCVE
2022-12-03 07:11:09	2018-06-04T20:29Z	2018-06-04T20:29:00	CVE Published Date	updated
2022-12-03 07:11:09		2022-04-19T20:15:12	CVE Modified Date	updated
2022-12-03 07:11:09		Modified	Vulnerability Status	updated