CVE-2013-5211 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 97.5% (pctl 100)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 97.55% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2014-01-02 |
| Last modified | 2026-06-16 |
Affected (3)
| Vendor | Product |
|---|---|
| ntp | ntp |
| opensuse | opensuse |
| oracle | linux |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | NTP ntpd monlist Query Reflection - Denial of Service | 2014-04-28 |
References
- http://aix.software.ibm.com/aix/efixes/security/ntp_advisory.asc
- http://bugs.ntp.org/show_bug.cgi?id=1532
- http://ics-cert.us-cert.gov/advisories/ICSA-14-051-04
- http://lists.ntp.org/pipermail/pool/2011-December/005616.html
- http://lists.opensuse.org/opensuse-updates/2014-09/msg00031.html
- http://marc.info/?l=bugtraq&m=138971294629419&w=2
- http://marc.info/?l=bugtraq&m=144182594518755&w=2
- http://openwall.com/lists/oss-security/2013/12/30/6
- http://openwall.com/lists/oss-security/2013/12/30/7
- http://secunia.com/advisories/59288
- http://secunia.com/advisories/59726
- http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095861
- http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095892
- http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-dev/ntp-dev-4.2.7p26.tar.gz
- http://www.kb.cert.org/vuls/id/348126
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.securityfocus.com/bid/64692
- http://www.securitytracker.com/id/1030433
- http://www.us-cert.gov/ncas/alerts/TA14-013A
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232
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