CVE-2019-1962 : A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software c

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.

Published 2019-08-28 19:15:11

Updated 2019-10-09 23:48:41

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Input validationDenial of service

Products affected by CVE-2019-1962

Cisco » Nx-os
Versions from including (>=) 5.2 and before (<) 6.2\(29\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Mds 9132t » Version: N/A
When used together with: Cisco » Mds 9148s » Version: N/A
When used together with: Cisco » Mds 9148t » Version: N/A
When used together with: Cisco » Mds 9216 » Version: N/A
When used together with: Cisco » Mds 9216a » Version: N/A
When used together with: Cisco » Mds 9216i » Version: N/A
When used together with: Cisco » Mds 9222i » Version: N/A
When used together with: Cisco » Mds 9250i » Version: N/A
When used together with: Cisco » Mds 9396s » Version: N/A
When used together with: Cisco » Mds 9396t » Version: N/A
When used together with: Cisco » Mds 9506 » Version: N/A
When used together with: Cisco » Mds 9509 » Version: N/A
When used together with: Cisco » Mds 9513 » Version: N/A
When used together with: Cisco » Mds 9706 » Version: N/A
When used together with: Cisco » Mds 9710 » Version: N/A
When used together with: Cisco » Mds 9718 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.3 and before (<) 8.1
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Mds 9132t » Version: N/A
When used together with: Cisco » Mds 9148s » Version: N/A
When used together with: Cisco » Mds 9148t » Version: N/A
When used together with: Cisco » Mds 9216 » Version: N/A
When used together with: Cisco » Mds 9216a » Version: N/A
When used together with: Cisco » Mds 9216i » Version: N/A
When used together with: Cisco » Mds 9222i » Version: N/A
When used together with: Cisco » Mds 9250i » Version: N/A
When used together with: Cisco » Mds 9396s » Version: N/A
When used together with: Cisco » Mds 9396t » Version: N/A
When used together with: Cisco » Mds 9506 » Version: N/A
When used together with: Cisco » Mds 9509 » Version: N/A
When used together with: Cisco » Mds 9513 » Version: N/A
When used together with: Cisco » Mds 9706 » Version: N/A
When used together with: Cisco » Mds 9710 » Version: N/A
When used together with: Cisco » Mds 9718 » Version: N/A
Cisco » Nx-os
Versions before (<) 3.2\(3i\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ucs-6296up » Version: N/A
When used together with: Cisco » Ucs 6248up » Version: N/A
When used together with: Cisco » Ucs 6324 » Version: N/A
When used together with: Cisco » Ucs 6332 » Version: N/A
When used together with: Cisco » Ucs 6332-16up » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.0\(3\)f and before (<) 9.2
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » N9k-c9504-fm-r » Version: N/A
When used together with: Cisco » N9k-c9508-fm-r » Version: N/A
When used together with: Cisco » N9k-x96136yc-r » Version: N/A
When used together with: Cisco » N9k-x9636c-r » Version: N/A
When used together with: Cisco » N9k-x9636c-rx » Version: N/A
When used together with: Cisco » N9k-x9636q-r » Version: N/A
When used together with: Cisco » Nexus 36180yc-r » Version: N/A
When used together with: Cisco » Nexus 3636c-r » Version: N/A
When used together with: Cisco » X96136yc-r » Version: N/A
When used together with: Cisco » X9636c-r » Version: N/A
When used together with: Cisco » X9636c-rx » Version: N/A
When used together with: Cisco » X9636q-r » Version: N/A
Cisco » Nx-os
Versions before (<) 6.0\(2\)a8\(11\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 3524-x/xl » Version: N/A
When used together with: Cisco » Nexus 3548-x/xl » Version: N/A
Cisco » Nx-os
Versions before (<) 7.0\(3\)i4\(9\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » N9k-c92160yc-x » Version: N/A
When used together with: Cisco » N9k-c9236c » Version: N/A
When used together with: Cisco » N9k-c9272q » Version: N/A
When used together with: Cisco » N9k-c93180lc-ex » Version: N/A
When used together with: Cisco » N9k-c93180yc-ex » Version: N/A
When used together with: Cisco » N9k-c93180yc-fx » Version: N/A
When used together with: Cisco » N9k-x9732c-ex » Version: N/A
When used together with: Cisco » N9k-x9736c-fx » Version: N/A
When used together with: Cisco » Nexus 3048 » Version: N/A
Cisco » Nx-os
Versions before (<) 7.1\(5\)n1\(1b\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5010 » Version: N/A
When used together with: Cisco » Nexus 5020 » Version: N/A
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5672up-16g » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
When used together with: Cisco » Nexus 6001 » Version: N/A
When used together with: Cisco » Nexus 6004 » Version: N/A
Cisco » Nx-os
Versions before (<) 6.2\(22\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 7000 10-slot » Version: N/A
When used together with: Cisco » 7000 18-slot » Version: N/A
When used together with: Cisco » 7000 4-slot » Version: N/A
When used together with: Cisco » 7000 9-slot » Version: N/A
When used together with: Cisco » 7700 10-slot » Version: N/A
When used together with: Cisco » 7700 18-slot » Version: N/A
When used together with: Cisco » 7700 2-slot » Version: N/A
When used together with: Cisco » 7700 6-slot » Version: N/A
When used together with: Cisco » N77-f312ck-26 » Version: N/A
When used together with: Cisco » N77-f324fq-25 » Version: N/A
When used together with: Cisco » N77-f348xp-23 » Version: N/A
When used together with: Cisco » N77-f430cq-36 » Version: N/A
When used together with: Cisco » N77-m312cq-26l » Version: N/A
When used together with: Cisco » N77-m324fq-25l » Version: N/A
When used together with: Cisco » N77-m348xp-23l » Version: N/A
When used together with: Cisco » N7k-f248xp-25e » Version: N/A
When used together with: Cisco » N7k-f306ck-25 » Version: N/A
When used together with: Cisco » N7k-f312fq-25 » Version: N/A
When used together with: Cisco » N7k-m202cf-22l » Version: N/A
When used together with: Cisco » N7k-m206fq-23l » Version: N/A
When used together with: Cisco » N7k-m224xp-23l » Version: N/A
When used together with: Cisco » N7k-m324fq-25l » Version: N/A
When used together with: Cisco » N7k-m348xp-25l » Version: N/A
When used together with: Cisco » Nexus 7000 Supervisor 1 » Version: N/A
When used together with: Cisco » Nexus 7000 Supervisor 2 » Version: N/A
When used together with: Cisco » Nexus 7000 Supervisor 2e » Version: N/A
When used together with: Cisco » Nexus 7700 Supervisor 2e » Version: N/A
When used together with: Cisco » Nexus 7700 Supervisor 3e » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.2 and before (<) 7.3\(4\)d1\(1\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 7000 10-slot » Version: N/A
When used together with: Cisco » 7000 18-slot » Version: N/A
When used together with: Cisco » 7000 4-slot » Version: N/A
When used together with: Cisco » 7000 9-slot » Version: N/A
When used together with: Cisco » 7700 10-slot » Version: N/A
When used together with: Cisco » 7700 18-slot » Version: N/A
When used together with: Cisco » 7700 2-slot » Version: N/A
When used together with: Cisco » 7700 6-slot » Version: N/A
When used together with: Cisco » N77-f312ck-26 » Version: N/A
When used together with: Cisco » N77-f324fq-25 » Version: N/A
When used together with: Cisco » N77-f348xp-23 » Version: N/A
When used together with: Cisco » N77-f430cq-36 » Version: N/A
When used together with: Cisco » N77-m312cq-26l » Version: N/A
When used together with: Cisco » N77-m324fq-25l » Version: N/A
When used together with: Cisco » N77-m348xp-23l » Version: N/A
When used together with: Cisco » N7k-f248xp-25e » Version: N/A
When used together with: Cisco » N7k-f306ck-25 » Version: N/A
When used together with: Cisco » N7k-f312fq-25 » Version: N/A
When used together with: Cisco » N7k-m202cf-22l » Version: N/A
When used together with: Cisco » N7k-m206fq-23l » Version: N/A
When used together with: Cisco » N7k-m224xp-23l » Version: N/A
When used together with: Cisco » N7k-m324fq-25l » Version: N/A
When used together with: Cisco » N7k-m348xp-25l » Version: N/A
When used together with: Cisco » Nexus 7000 Supervisor 1 » Version: N/A
When used together with: Cisco » Nexus 7000 Supervisor 2 » Version: N/A
When used together with: Cisco » Nexus 7000 Supervisor 2e » Version: N/A
When used together with: Cisco » Nexus 7700 Supervisor 2e » Version: N/A
When used together with: Cisco » Nexus 7700 Supervisor 3e » Version: N/A
Cisco » Nx-os
Versions from including (>=) 4.0 and before (<) 4.0\(2d\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Ucs-6296up » Version: N/A
When used together with: Cisco » Ucs 6248up » Version: N/A
When used together with: Cisco » Ucs 6324 » Version: N/A
When used together with: Cisco » Ucs 6332 » Version: N/A
When used together with: Cisco » Ucs 6332-16up » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.3 and before (<) 7.3\(5\)n1\(1\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Nexus 5010 » Version: N/A
When used together with: Cisco » Nexus 5020 » Version: N/A
When used together with: Cisco » Nexus 5548p » Version: N/A
When used together with: Cisco » Nexus 5548up » Version: N/A
When used together with: Cisco » Nexus 5596t » Version: N/A
When used together with: Cisco » Nexus 5596up » Version: N/A
When used together with: Cisco » Nexus 56128p » Version: N/A
When used together with: Cisco » Nexus 5624q » Version: N/A
When used together with: Cisco » Nexus 5648q » Version: N/A
When used together with: Cisco » Nexus 5672up » Version: N/A
When used together with: Cisco » Nexus 5672up-16g » Version: N/A
When used together with: Cisco » Nexus 5696q » Version: N/A
When used together with: Cisco » Nexus 6001 » Version: N/A
When used together with: Cisco » Nexus 6004 » Version: N/A
Cisco » Nx-os
Versions from including (>=) 7.0\(3\)i7 and before (<) 7.0\(3\)i7\(6\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » N9k-c92160yc-x » Version: N/A
When used together with: Cisco » N9k-c9236c » Version: N/A
When used together with: Cisco » N9k-c9272q » Version: N/A
When used together with: Cisco » N9k-c93180lc-ex » Version: N/A
When used together with: Cisco » N9k-c93180yc-ex » Version: N/A
When used together with: Cisco » N9k-c93180yc-fx » Version: N/A
When used together with: Cisco » N9k-x9732c-ex » Version: N/A
When used together with: Cisco » N9k-x9736c-fx » Version: N/A
When used together with: Cisco » Nexus 3048 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-1962

EPSS FAQ

1.45%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 79 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-1962

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
8.6	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	3.9	4.0	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2019-1962

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2019-1962

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

Cisco NX-OS Software Cisco Fabric Services over IP Denial of Service Vulnerability
Vendor Advisory

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Vulnerability Details : CVE-2019-1962

Products affected by CVE-2019-1962

Exploit prediction scoring system (EPSS) score for CVE-2019-1962

CVSS scores for CVE-2019-1962

CWE ids for CVE-2019-1962

References for CVE-2019-1962