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Cisco NX-OS: Cisco NX-OS Software NX-API Denial of Service Vulnerability (CVE-2019-1968)

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Cisco NX-OS: Cisco NX-OS Software NX-API Denial of Service Vulnerability (CVE-2019-1968)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
08/28/2019
Created
08/30/2019
Added
08/29/2019
Modified
09/09/2019

Description

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API on an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition in the NX-API service; however, the NX-OS device itself would still be available and passing network traffic. Note: The NX-API feature is disabled by default.

Solution(s)

  • update-nxos

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