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[email protected]CVE-2019-1962

HistoryAug 28, 2019 - 7:15 p.m.

CVE-2019-1962

2019-08-2819:15:10

CWE-20

[email protected]

web.nvd.nist.gov

cisco

fabric services

nx-os

software

vulnerability

remote attacker

process crashes

denial of service

dos

cfsoip

tcp packet

device reload

nvd

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

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

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.

Affected configurations

NVD

Node

cisconx-osRange5.2–6.2\(29\)

cisconx-osRange7.3–8.1

AND

ciscomds_9132tMatch-

ciscomds_9148sMatch-

ciscomds_9148tMatch-

ciscomds_9216Match-

ciscomds_9216aMatch-

ciscomds_9216iMatch-

ciscomds_9222iMatch-

ciscomds_9250iMatch-

ciscomds_9396sMatch-

ciscomds_9396tMatch-

ciscomds_9506Match-

ciscomds_9509Match-

ciscomds_9513Match-

ciscomds_9706Match-

ciscomds_9710Match-

ciscomds_9718Match-

Node

cisconx-osRange7.0\(3\)f–9.2

AND

ciscon9k-c9504-fm-rMatch-

ciscon9k-c9508-fm-rMatch-

ciscon9k-x96136yc-rMatch-

ciscon9k-x9636c-rMatch-

ciscon9k-x9636c-rxMatch-

ciscon9k-x9636q-rMatch-

cisconexus_36180yc-rMatch-

cisconexus_3636c-rMatch-

ciscox96136yc-rMatch-

ciscox9636c-rMatch-

ciscox9636c-rxMatch-

ciscox9636q-rMatch-

Node

cisconx-osRange<7.1\(5\)n1\(1b\)

cisconx-osRange7.3–7.3\(5\)n1\(1\)

AND

cisconexus_5010Match-

cisconexus_5020Match-

cisconexus_5548pMatch-

cisconexus_5548upMatch-

cisconexus_5596tMatch-

cisconexus_5596upMatch-

cisconexus_56128pMatch-

cisconexus_5624qMatch-

cisconexus_5648qMatch-

cisconexus_5672upMatch-

cisconexus_5672up-16gMatch-

cisconexus_5696qMatch-

cisconexus_6001Match-

cisconexus_6004Match-

Node

cisconx-osRange<6.2\(22\)

cisconx-osRange7.2–7.3\(4\)d1\(1\)

AND

cisco7000_10-slotMatch-

cisco7000_18-slotMatch-

cisco7000_4-slotMatch-

cisco7000_9-slotMatch-

cisco7700_10-slotMatch-

cisco7700_18-slotMatch-

cisco7700_2-slotMatch-

cisco7700_6-slotMatch-

ciscon77-f312ck-26Match-

ciscon77-f324fq-25Match-

ciscon77-f348xp-23Match-

ciscon77-f430cq-36Match-

ciscon77-m312cq-26lMatch-

ciscon77-m324fq-25lMatch-

ciscon77-m348xp-23lMatch-

ciscon7k-f248xp-25eMatch-

ciscon7k-f306ck-25Match-

ciscon7k-f312fq-25Match-

ciscon7k-m202cf-22lMatch-

ciscon7k-m206fq-23lMatch-

ciscon7k-m224xp-23lMatch-

ciscon7k-m324fq-25lMatch-

ciscon7k-m348xp-25lMatch-

cisconexus_7000_supervisor_1Match-

cisconexus_7000_supervisor_2Match-

cisconexus_7000_supervisor_2eMatch-

cisconexus_7700_supervisor_2eMatch-

cisconexus_7700_supervisor_3eMatch-

Node

cisconx-osRange<7.0\(3\)i4\(9\)

cisconx-osRange7.0\(3\)i7–7.0\(3\)i7\(6\)

AND

ciscon9k-c92160yc-xMatch-

ciscon9k-c9236cMatch-

ciscon9k-c9272qMatch-

ciscon9k-c93180lc-exMatch-

ciscon9k-c93180yc-exMatch-

ciscon9k-c93180yc-fxMatch-

ciscon9k-x9732c-exMatch-

ciscon9k-x9736c-fxMatch-

cisconexus_3048Match-

Node

cisconx-osRange<6.0\(2\)a8\(11\)

cisconx-osRange7.0\(3\)i7–7.0\(3\)i7\(6\)

AND

cisconexus_3524-x\/xlMatch-

cisconexus_3548-x\/xlMatch-

Node

cisconx-osRange<3.2\(3i\)

cisconx-osRange4.0–4.0\(2d\)

AND

ciscoucs-6296upMatch-

ciscoucs_6248upMatch-

ciscoucs_6324Match-

ciscoucs_6332Match-

ciscoucs_6332-16upMatch-

CPENameOperatorVersion
cisco:nx-oscisco nx-oslt6.2\(29\)
cisco:nx-oscisco nx-oslt8.1

CPE	Name	Operator	Version
cisco:nx-os	cisco nx-os	lt	6.2\(29\)
cisco:nx-os	cisco nx-os	lt	8.1

CNA Affected

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

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-fsip-dos

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

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

0.002 Low

EPSS

Percentile

52.7%

JSON

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