Vulnerability Details : CVE-2009-3563

Public exploit exists!
ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.
Published 2009-12-09 18:30:00
Updated 2017-09-19 01:29:41
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2009-3563

Exploit prediction scoring system (EPSS) score for CVE-2009-3563

EPSS FAQ
96.52%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2009-3563

  • NTP.org ntpd Reserved Mode Denial of Service
    Disclosure Date: 2009-10-04
    First seen: 2020-04-26
    auxiliary/dos/ntp/ntpd_reserved_dos
    This module exploits a denial of service vulnerability within the NTP (network time protocol) demon. By sending a single packet to a vulnerable ntpd server (Victim A), spoofed from the IP address of another vulnerable ntpd server (Victim B), both victims will

CVSS scores for CVE-2009-3563

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.4
 MEDIUM AV:N/AC:L/Au:N/C:N/I:P/A:P
10.0
4.9
 NIST

References for CVE-2009-3563

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