An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimate server responses. It is possible to force the victim client to move time after the mode has been changed. ntpq gives no indication that the mode has been switched.
Published 2017-01-06 21:59:00
Updated 2021-11-17 22:15:48
Source CERT/CC
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2016-1548

0.62%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-1548

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
7.2
HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
3.9
2.7
NIST

CWE ids for CVE-2016-1548

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-1548

Products affected by CVE-2016-1548

This web site uses cookies for managing your session, storing preferences, website analytics and additional purposes described in our privacy policy.
By using this web site you are agreeing to CVEdetails.com terms of use!