Podatność CVE-2019-1967


Publikacja: 2019-08-30

Opis:
A vulnerability in the Network Time Protocol (NTP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to excessive use of system resources when the affected device is logging a drop action for received MODE_PRIVATE (Mode 7) NTP packets. An attacker could exploit this vulnerability by flooding the device with a steady stream of Mode 7 NTP packets. A successful exploit could allow the attacker to cause high CPU and memory usage on the affected device, which could cause internal system processes to restart or cause the affected device to unexpectedly reload. Note: The NTP feature is enabled by default.

Typ:

CWE-399

(Resource Management Errors)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:C)

Ogólna skala CVSS
Znaczenie
Łatwość wykorzystania
7.8/10
6.9/10
10/10
Wymagany dostęp
Złożoność ataku
Autoryzacja
Zdalny
Niska
Nie wymagana
Wpływ na poufność
Wpływ na integralność
Wpływ na dostępność
Brak
Brak
Pełny
Affected software
Cisco -> Nx-os 

 Referencje:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-ntp-dos

Copyright 2022, cxsecurity.com

 

Back to Top