CVE-2013-5211
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Metasploit modules
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bullseye | fixed | 1:4.2.8p3+dfsg-1 |
| suse | 11.4 | affected | |
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
- https://puppet.com/security/cve/puppetlabs-ntp-nov-2015-advisory
- https://security-tracker.debian.org/tracker/CVE-2013-5211
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.