NVD - CVE-2018-7170

CVE-2018-7170 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current Description

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.

Source: MITRE
Description Last Modified: 03/07/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.3 MEDIUM
Vector: AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.6

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 3.5 LOW
Vector: (AV:N/AC:M/Au:S/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 6.8

Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html	Third Party Advisory VDB Entry
http://support.ntp.org/bin/view/Main/NtpBug3415	Third Party Advisory
http://www.securityfocus.com/archive/1/541824/100/0/threaded
http://www.securityfocus.com/bid/103194	Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1550214	Issue Tracking
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc	Third Party Advisory
https://security.gentoo.org/glsa/201805-12
https://security.netapp.com/advisory/ntap-20180626-0001/	Third Party Advisory
https://www.synology.com/support/security/Synology_SA_18_13	Third Party Advisory

Technical Details

Vulnerability Type (View All)

Data Handling (CWE-19)
Key Management Errors (CWE-320)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found - show changes

Initial Analysis - 3/29/2018 12:03:21 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 1112 characters. View Entire Change Record OR cpe:2.3:a:ntp:ntp::::::::* versions from (including) 4.2.0 up to (including) 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1::::::* cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2::::::*
Added	CPE Configuration		OR cpe:2.3:a:synology:diskstation_manager:5.2::::::: cpe:2.3:a:synology:diskstation_manager:6.0::::::: cpe:2.3:a:synology:diskstation_manager:6.1::::::: cpe:2.3:a:synology:router_manager:1.1::::::: cpe:2.3:a:synology:skynas:-::::::: cpe:2.3:a:synology:virtual_diskstation_manager:-:::::::
Added	CPE Configuration		OR cpe:2.3:o:slackware:slackware_linux:14.0::::::: cpe:2.3:o:slackware:slackware_linux:14.1::::::: cpe:2.3:o:slackware:slackware_linux:14.2:::::::
Added	CPE Configuration		OR cpe:2.3:o:synology:vs960hd_firmware:-:::::::
Added	CVSS V2		(AV:N/AC:L/Au:S/C:N/I:P/A:N)
Added	CVSS V3		AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Added	CWE		CWE-19
Added	CWE		CWE-320
Changed	Reference Type	http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html No Types Assigned	http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html Third Party Advisory, VDB Entry
Changed	Reference Type	http://support.ntp.org/bin/view/Main/NtpBug3415 No Types Assigned	http://support.ntp.org/bin/view/Main/NtpBug3415 Third Party Advisory
Changed	Reference Type	http://www.securityfocus.com/archive/1/archive/1/541824/100/0/threaded No Types Assigned	http://www.securityfocus.com/archive/1/archive/1/541824/100/0/threaded Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securityfocus.com/bid/103194 No Types Assigned	http://www.securityfocus.com/bid/103194 Third Party Advisory, VDB Entry
Changed	Reference Type	https://bugzilla.redhat.com/show_bug.cgi?id=1550214 No Types Assigned	https://bugzilla.redhat.com/show_bug.cgi?id=1550214 Issue Tracking
Changed	Reference Type	https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc No Types Assigned	https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc Third Party Advisory
Changed	Reference Type	https://www.synology.com/support/security/Synology_SA_18_13 No Types Assigned	https://www.synology.com/support/security/Synology_SA_18_13 Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2018-7170
NVD Published Date:
03/06/2018
NVD Last Modified:
10/21/2018

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-7170 Detail

Current Description

Analysis Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 10/21/2018 6:29:58 AM

CVE Modified by MITRE - 10/9/2018 4:01:54 PM

Modified Analysis - 9/6/2018 9:37:37 AM

CVE Modified by MITRE - 6/27/2018 9:29:02 PM

Initial Analysis - 3/29/2018 12:03:21 PM

CVE Modified by MITRE - 3/27/2018 9:29:12 PM

CVE Modified by MITRE - 3/7/2018 9:29:03 PM

Quick Info