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CVE-2020-13817

Published: Jun 4, 2020Updated: May 5, 2025 Sources: CVE List NVD BDU csafCWE-330
7.4HIGH
NVD MITRE
EPSS Score
4.1%
Top 10.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit or system time change) by predicting transmit timestamps for use in spoofed packets. The victim must be relying on unauthenticated IPv4 time sources. There must be an off-path attacker who can query time from the victim's ntpd instance.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-330

Affected Products

netapp
commercial·US
cloud backup
Hardware Firmware
clustered data ontap
Hardware Firmware
data ontap
Hardware Firmware
element software
Hardware Firmware
hci management node
Hardware Firmware
ontap tools
Hardware Firmware
solidfire
Hardware Firmware
steelstore cloud integrated storage
Hardware Firmware
fujitsu
commercial·JPaka m10-1 firmware, m10-4 firmware, m10-4s firmware
m10-1 firmware
Hardware Firmware
m10-4 firmware
Hardware Firmware
m10-4s firmware
Hardware Firmware
m12-1 firmware
Hardware Firmware
m12-2 firmware
Hardware Firmware
m12-2s firmware
Hardware Firmware
ntp
oss-projectaka ntp daemon
ntpOn-prem
Networking Infrastructure / dns-dhcp-ntp
opensuse
oss-project·DE
leapOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
and 12 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-13817?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
lists.opensuse.org
http://support.ntp.org/bin/view/Main/NtpBug3596
support.ntp.org
and 32 more references View all →
News mentions
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