High severity · published Jun 4, 2020
CVE-2020-13817
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…
7.4
CVSS
3.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CB
Cloud Backup · Netapp
All versions, or not specified · source: NVD
CD
Clustered Data Ontap · Netapp
All versions, or not specified · source: NVD
DO
Data Ontap · Netapp
All versions, or not specified · source: NVD
ES
Element Software · Netapp
All versions, or not specified · source: NVD
HF
H300e Firmware · Netapp
All versions, or not specified · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500e Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700e Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700s Firmware · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-13817
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-13817
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
Vendor Advisory
http://support.ntp.org/bin/view/Main/NtpBug3596
Issue Tracking
https://bugs.ntp.org/show_bug.cgi?id=3596
Third Party Advisory
https://security.gentoo.org/glsa/202007-12
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200625-0004/
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