CVE-2015-7973

high-risk

Published 2017-01-30

NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.

Do I need to act?

8.6% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

NETWORK / HIGH complexity

Affected Products (20)

Ntp

Freebsd

Affected Vendors

Netapp Ntp Canonical Freebsd Siemens

References (44)

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html

Broken Link http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html

Broken Link http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html

Vendor Advisory http://support.ntp.org/bin/view/Main/NtpBug2935

Third Party Advisory http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20...

Third Party Advisory http://www.securityfocus.com/bid/81963

Third Party Advisory http://www.securitytracker.com/id/1034782

Third Party Advisory http://www.ubuntu.com/usn/USN-3096-1

Third Party Advisory https://bto.bluecoat.com/security-advisory/sa113

Third Party Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf

Third Party Advisory https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na...

Third Party Advisory https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc

Third Party Advisory https://security.gentoo.org/glsa/201607-15

Third Party Advisory https://security.netapp.com/advisory/ntap-20171031-0001/

and 24 more references

/ 100

high-risk

Severity 20/34 · Moderate

Exploitability 10/34 · Low

Exposure 28/34 · Critical