Executive Summary

Informations
Name CVE-2018-8956 First vendor Publication 2020-05-06
Vendor Cve Last vendor Modification 2020-07-19

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 1.4 Temporal Score 5.3
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8956

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 4

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20200518-0006/
MISC http://www.ntp.org/
https://arxiv.org/abs/2005.01783
https://nikhiltripathi.in/NTP_attack.pdf
https://tools.ietf.org/html/rfc5905
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html

Alert History

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Date Informations
2021-05-04 13:21:16
  • Multiple Updates
2021-04-22 02:36:16
  • Multiple Updates
2020-07-19 21:22:57
  • Multiple Updates
2020-07-07 05:22:39
  • Multiple Updates
2020-05-23 01:19:35
  • First insertion