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HIGH · 7.5

CVE-2019-1968

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 inc...

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
CiscoNx-Os7.3
CiscoMds 9000-
CiscoMds 9100-
CiscoMds 9140-
CiscoMds 9200-
CiscoMds 9500-
CiscoMds 9700-
CiscoNexus 3016-
CiscoNexus 3048-
CiscoNexus 3064-
CiscoNexus 3064-T-
CiscoNexus 31108Pc-V-
CiscoNexus 31108Tc-V-
CiscoNexus 31128Pq-
CiscoNexus 3132C-Z-
CiscoNexus 3132Q-
CiscoNexus 3132Q-V-
CiscoNexus 3132Q-Xl-
CiscoNexus 3164Q-
CiscoNexus 3172-

Related Weaknesses (CWE)

CWE-20CWE-116

References

FAQ

What is CVE-2019-1968?

CVE-2019-1968 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 inc...

How severe is CVE-2019-1968?

CVE-2019-1968 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-1968?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Mds 9000, Cisco Mds 9100, Cisco Mds 9140, Cisco Mds 9200.