CVE-2013-5211
The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged...
- Published
- Jan 2, 2014
- Updated
- Aug 6, 2024
- Assigning CNA
- mitre
- Evidence observed
- Apr 28, 2014
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:PHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploited in the wild in December 2013.
Sources
5- CVE-2013-5211Scanner
Python PoC scanner that detects NTP servers vulnerable to CVE-2013-5211 by sending monlist requests and identifying responses that indicate ntpd DoS exposure.
- NTP_CVE-2013-5211Exploit
Exploit and check CVE-2013-5211
- ntpdosPoC
PoC for distributed NTP reflection DoS (CVE-2013-5211)
Responsible use
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