NVD

CVE-2019-1962 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

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.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 7.5 HIGH

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

Nist CVSS score does not match with CNA score

CNA: Cisco Systems, Inc.

Base Score: 8.6 HIGH

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

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-fsip-dos	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	NIST Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Initial Analysis by NIST 9/04/2019 9:33:53 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 1052 characters. View Entire Change Record AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 5.2 up to (excluding) 6.2\(29\) cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.3 up to (excluding) 8.1 OR cpe:2.3:h:cisco:mds_9132t:-:::::::* cpe:2.3:h:cisco:mds_9148s:-:::::::* cpe:2.3:h:cisco:mds_9148t:-:::::::* cpe:2.3:h:cisco:mds_9216:-:::::::* cpe:2.3:h:cisco:mds_9216a:-:::::::* cpe
Added	CPE Configuration		Record truncated, showing 500 of 784 characters. View Entire Change Record AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.0\(3\)f up to (excluding) 9.2 OR cpe:2.3:h:cisco:n9k-c9504-fm-r:-:::::::* cpe:2.3:h:cisco:n9k-c9508-fm-r:-:::::::* cpe:2.3:h:cisco:n9k-x96136yc-r:-:::::::* cpe:2.3:h:cisco:n9k-x9636c-r:-:::::::* cpe:2.3:h:cisco:n9k-x9636c-rx:-:::::::* cpe:2.3:h:cisco:n9k-x9636q-r:-:::::::* cpe:2.3:h:cisco:nexus_3618
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 3.2\(3i\) cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 4.0 up to (excluding) 4.0\(2d\) OR cpe:2.3:h:cisco:ucs-6296up:-:::::::* cpe:2.3:h:cisco:ucs_6248up:-:::::::* cpe:2.3:h:cisco:ucs_6324:-:::::::* cpe:2.3:h:cisco:ucs_6332:-:::::::* cpe:2.3:h:cisco:ucs_6332-16up:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 6.0(2)a8(11) cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.0\(3\)i7 up to (excluding) 7.0\(3\)i7\(6\) OR cpe:2.3:h:cisco:nexus_3524-x\/xl:-:::::::* cpe:2.3:h:cisco:nexus_3548-x\/xl:-:::::::*
Added	CPE Configuration		Record truncated, showing 500 of 1836 characters. View Entire Change Record AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 6.2\(22\) cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.2 up to (excluding) 7.3\(4\)d1\(1\) OR cpe:2.3:h:cisco:7000_10-slot:-:::::::* cpe:2.3:h:cisco:7000_18-slot:-:::::::* cpe:2.3:h:cisco:7000_4-slot:-:::::::* cpe:2.3:h:cisco:7000_9-slot:-:::::::* cpe:2.3:h:cisco:7700_10-slot:-:::::::*
Added	CPE Configuration		Record truncated, showing 500 of 733 characters. View Entire Change Record AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.0\(3\)i4\(9\) cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.0\(3\)i7 up to (excluding) 7.0\(3\)i7\(6\) OR cpe:2.3:h:cisco:n9k-c92160yc-x:-:::::::* cpe:2.3:h:cisco:n9k-c9236c:-:::::::* cpe:2.3:h:cisco:n9k-c9272q:-:::::::* cpe:2.3:h:cisco:n9k-c93180lc-ex:-:::::::* cpe:2.3:h:cisco:n9k-c93180yc-ex:-::
Added	CPE Configuration		Record truncated, showing 500 of 986 characters. View Entire Change Record AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.1\(5\)n1\(1b\) cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.3 up to (excluding) 7.3\(5\)n1\(1\) OR cpe:2.3:h:cisco:nexus_5010:-:::::::* cpe:2.3:h:cisco:nexus_5020:-:::::::* cpe:2.3:h:cisco:nexus_5548p:-:::::::* cpe:2.3:h:cisco:nexus_5548up:-:::::::* cpe:2.3:h:cisco:nexus_5596t:-:::::::*
Added	CVSS V2		(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CWE		CWE-20
Changed	Reference Type	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-fsip-dos No Types Assigned	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-fsip-dos Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2019-1962
NVD Published Date:
08/28/2019
NVD Last Modified:
10/09/2019
Source:
Cisco Systems, Inc.

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