CVE-2016-1551
 
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
ntpd in NTP 4.2.8p3 and NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 relies on the underlying operating system to protect it from requests that impersonate reference clocks. Because reference clocks are treated like other peers and stored in the same structure, any packet with a source ip address of a reference clock (127.127.1.1 for example) that reaches the receive() function will match that reference clock's peer record and will be treated as a trusted peer. Any system that lacks the typical martian packet filtering which would block these packets is in danger of having its time controlled by an attacker.
ntpd en NTP 4.2.8p3 y NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 confía en el sistema operativo subyacente para protegerlo de las solicitudes que suplantan relojes de referencia. Debido a que los relojes de referencia son tratados como otros pares y almacenados en la misma estructura, cualquier paquete con una dirección IP de origen de un reloj de referencia (127.127.1.1 por ejemplo) que alcance la función receive() coincidirá con el registro de par de referencia clock's y será tratado como un par de confianza. Cualquier sistema que carezca del típico filtrado de paquetes marcianos que bloquearía estos paquetes está en peligro de tener su tiempo controlado por un atacante.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2016-01-07 CVE Reserved
- 2016-05-02 CVE Published
- 2023-03-07 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-254: 7PK - Security Features
CAPEC
References (7)
URL | Tag | Source |
---|---|---|
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html | Third Party Advisory | |
http://www.securityfocus.com/bid/88219 | Third Party Advisory | |
http://www.securitytracker.com/id/1035705 | Vdb Entry | |
http://www.talosintelligence.com/reports/TALOS-2016-0132 | Third Party Advisory | |
https://security.netapp.com/advisory/ntap-20171004-0002 | X_refsource_confirm |
URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
---|---|---|
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc | 2017-11-21 | |
https://security.gentoo.org/glsa/201607-15 | 2017-11-21 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Ntp Search vendor "Ntp" | Ntp Search vendor "Ntp" for product "Ntp" | 4.2.8 Search vendor "Ntp" for product "Ntp" and version "4.2.8" | p3 |
Affected
| ||||||
Ntpsec Search vendor "Ntpsec" | Ntpsec Search vendor "Ntpsec" for product "Ntpsec" | a5fb34b9cc89b92a8fef2f459004865c93bb7f92 Search vendor "Ntpsec" for product "Ntpsec" and version "a5fb34b9cc89b92a8fef2f459004865c93bb7f92" | - |
Affected
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