CVE-2019-1962 Cisco NX-OS Software Cisco Fabric Services over IP Denial of Service Vulnerability

2019-08-2800:00:00

CWE-20

cisco

www.cve.org

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

7.9 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.7%

JSON

A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of TCP packets when processed by the Cisco Fabric Services over IP (CFSoIP) feature. An attacker could exploit this vulnerability by sending a malicious Cisco Fabric Services TCP packet to an affected device. A successful exploit could allow the attacker to cause process crashes, resulting in a device reload and a DoS condition. Note: There are three distribution methods that can be configured for Cisco Fabric Services. This vulnerability affects only distribution method CFSoIP, which is disabled by default. See the Details section for more information.

CNA Affected

[
  {
    "product": "Cisco Unified Computing System (Managed) ",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "8.4(1)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]