ΠΠΏΠΈΡΠ°Π½ΠΈΠ΅
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.
| Π Π΅Π»ΠΈΠ· | Π‘ΡΠ°ΡΡΡ | ΠΡΠΈΠΌΠ΅ΡΠ°Π½ΠΈΠ΅ |
|---|---|---|
| devel | not-affected | 1:4.2.8p4+dfsg-3ubuntu6 |
| esm-infra-legacy/trusty | released | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 |
| esm-infra/xenial | released | 1:4.2.8p4+dfsg-3ubuntu5.3 |
| precise | released | 1:4.2.6.p3+dfsg-1ubuntu3.11 |
| precise/esm | not-affected | 1:4.2.6.p3+dfsg-1ubuntu3.11 |
| trusty | released | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 |
| trusty/esm | released | 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10 |
| upstream | released | 1:4.2.8p7+dfsg-1 |
| vivid/stable-phone-overlay | ignored | end of life |
| vivid/ubuntu-core | DNE |
ΠΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ ΠΏΠΎ
EPSS
6.4 Medium
CVSS2
7.2 High
CVSS3
Π‘Π²ΡΠ·Π°Π½Π½ΡΠ΅ ΡΡΠ·Π²ΠΈΠΌΠΎΡΡΠΈ
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.
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.
An attacker can spoof a packet from a legitimate ntpd server with an o ...
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.
ELSA-2016-1141: ntp security update (MODERATE)
EPSS
6.4 Medium
CVSS2
7.2 High
CVSS3