NVD

CVE-2019-1594 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 802.1X implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation of Extensible Authentication Protocol over LAN (EAPOL) frames. An attacker could exploit this vulnerability by sending a crafted EAPOL frame to an interface on the targeted device. A successful exploit could allow the attacker to cause the Layer 2 (L2) forwarding process to restart multiple times, leading to a system-level restart of the device and a DoS condition. Note: This vulnerability affects only NX-OS devices configured with 802.1X functionality. Cisco Nexus 1000V Switch for VMware vSphere devices are affected in versions prior to 5.2(1)SV3(1.4b). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.3(5)N1(1) and 7.1(5)N1(1b). Nexus 7000 and 7700 Series Switches are affected in versions prior to 8.2(3). Nexus 9000 Series Fabric Switches in ACI Mode are affected in versions prior to 13.2(1l). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4).

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA: Cisco Systems, Inc.

Base Score: 7.4 HIGH

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 6.1 MEDIUM

Vector: (AV:A/AC:L/Au:N/C:N/I:N/A:C)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/107325	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/107325	Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth	Patch Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth	Patch Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	NIST
CWE-264	Permissions, Privileges, and Access Controls	Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Modified Analysis by NIST 3/15/2019 11:46:12 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:::::::* cpe:2.3:h:cisco:nexus_3500:-:::::::*	AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.0\(3\)i7 up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:::::::* cpe:2.3:h:cisco:nexus_3500:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_9000_in_standalone_nx-os_mode:-:::::::*	AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.0\(3\)i7 up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_9000_in_standalone_nx-os_mode:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 8.2\(3\) OR cpe:2.3:h:cisco:nexus_7000:-:::::::* cpe:2.3:h:cisco:nexus_7700:-:::::::*	AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 8.3 up to (excluding) 8.3\(1\) OR cpe:2.3:h:cisco:nexus_7000:-:::::::* cpe:2.3:h:cisco:nexus_7700:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 6.2 up to (excluding) 6.2\(20a\) OR cpe:2.3:h:cisco:nexus_7000:-:::::::* cpe:2.3:h:cisco:nexus_7700:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.2 up to (excluding) 7.3\(3\)d1\(1\) OR cpe:2.3:h:cisco:nexus_7000:-:::::::* cpe:2.3:h:cisco:nexus_7700:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 8.0 up to (excluding) 8.2\(3\) OR cpe:2.3:h:cisco:nexus_7000:-:::::::* cpe:2.3:h:cisco:nexus_7700:-:::::::*
Changed	Reference Type	http://www.securityfocus.com/bid/107325 No Types Assigned	http://www.securityfocus.com/bid/107325 Third Party Advisory, VDB Entry

Initial Analysis by NIST 3/07/2019 2:57:28 PM

Action	Type	Old Value	New Value
Added	CVSS V3		AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Added	CVSS V2		(AV:A/AC:L/Au:N/C:N/I:N/A:C)
Added	CWE		CWE-20
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions from (including) 7.2 up to (excluding) 7.3\(5)n1\(1\) OR cpe:2.3:h:cisco:nexus_2000:-:::::::* cpe:2.3:h:cisco:nexus_5500:-:::::::* cpe:2.3:h:cisco:nexus_5600:-:::::::* cpe:2.3:h:cisco:nexus_6000:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 13.2\(1l\) OR cpe:2.3:h:cisco:nexus_9000:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 5.2(1)sv3(1.4b) OR cpe:2.3:h:cisco:nexus_1000v:-:::::vmware_vsphere::
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:::::::* cpe:2.3:h:cisco:nexus_3500:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_9000_in_standalone_nx-os_mode:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 7.1\(5\)n1\(1b\) OR cpe:2.3:h:cisco:nexus_2000:-:::::::* cpe:2.3:h:cisco:nexus_5500:-:::::::* cpe:2.3:h:cisco:nexus_5600:-:::::::* cpe:2.3:h:cisco:nexus_6000:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:nx-os::::::::* versions up to (excluding) 8.2\(3\) OR cpe:2.3:h:cisco:nexus_7000:-:::::::* cpe:2.3:h:cisco:nexus_7700:-:::::::*
Changed	Reference Type	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth No Types Assigned	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth Patch, Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2019-1594
NVD Published Date:
03/06/2019
NVD Last Modified:
11/20/2024
Source:
Cisco Systems, Inc.

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