CVE-2023-20169

A vulnerability in the Intermediate System-to-Intermediate System (IS-IS) protocol of Cisco NX-OS Software for the Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, adjacent attacker to cause the IS-IS process to unexpectedly restart, which could cause an affected device to reload. This vulnerability is due to insufficient input validation when parsing an ingress IS-IS packet. An attacker could exploit this vulnerability by sending a crafted IS-IS packet to an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the unexpected restart of the IS-IS process, which could cause the affected device to reload. Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2 adjacent to the affected device.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-n3_9k-isis-dos-FTCXB4Vb	Vendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-n3_9k-isis-dos-FTCXB4Vb	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:cisco:nx-os:10.3\(2\):*:*:*:*:*:*:*

OR	cpe:2.3:h:cisco:nexus_3048:-:::::::*
	cpe:2.3:h:cisco:nexus_31108pc-v:-:::::::*
	cpe:2.3:h:cisco:nexus_31108tc-v:-:::::::*
	cpe:2.3:h:cisco:nexus_31128pq:-:::::::*
	cpe:2.3:h:cisco:nexus_3132c-z:-:::::::*
	cpe:2.3:h:cisco:nexus_3132q-v:-:::::::*
	cpe:2.3:h:cisco:nexus_3132q-xl:-:::::::*
	cpe:2.3:h:cisco:nexus_3164q:-:::::::*
	cpe:2.3:h:cisco:nexus_3172pq:-:::::::*
	cpe:2.3:h:cisco:nexus_3172pq-xl:-:::::::*
	cpe:2.3:h:cisco:nexus_3172tq:-:::::::*
	cpe:2.3:h:cisco:nexus_3172tq-32t:-:::::::*
	cpe:2.3:h:cisco:nexus_3172tq-xl:-:::::::*
	cpe:2.3:h:cisco:nexus_3232:-:::::::*
	cpe:2.3:h:cisco:nexus_3264c-e:-:::::::*
	cpe:2.3:h:cisco:nexus_3264q:-:::::::*
	cpe:2.3:h:cisco:nexus_3408-s:-:::::::*
	cpe:2.3:h:cisco:nexus_34180yc:-:::::::*
	cpe:2.3:h:cisco:nexus_34200yc-sm:-:::::::*
	cpe:2.3:h:cisco:nexus_3432d-s:-:::::::*
	cpe:2.3:h:cisco:nexus_3464c:-:::::::*
	cpe:2.3:h:cisco:nexus_3524:-:::::::*
	cpe:2.3:h:cisco:nexus_3524-x:-:::::::*
	cpe:2.3:h:cisco:nexus_3524-xl:-:::::::*
	cpe:2.3:h:cisco:nexus_3548:-:::::::*
	cpe:2.3:h:cisco:nexus_3548-x:-:::::::*
	cpe:2.3:h:cisco:nexus_3548-xl:-:::::::*
	cpe:2.3:h:cisco:nexus_36180yc-r:-:::::::*
	cpe:2.3:h:cisco:nexus_9232e:-:::::::*
	cpe:2.3:h:cisco:nexus_92348gc-x:-:::::::*
	cpe:2.3:h:cisco:nexus_9408:-:::::::*
	cpe:2.3:h:cisco:nexus_9504:-:::::::*
	cpe:2.3:h:cisco:nexus_9508:-:::::::*
	cpe:2.3:h:cisco:nexus_9516:-:::::::*

History

21 Nov 2024, 07:40

Type	Values Removed	Values Added
References	~~() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-n3_9k-isis-dos-FTCXB4Vb - Vendor Advisory~~	() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-n3_9k-isis-dos-FTCXB4Vb - Vendor Advisory

22 Dec 2023, 14:59

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-08-23 19:15

Updated : 2024-11-21 07:40

NVD link : CVE-2023-20169

Mitre link : CVE-2023-20169

CVE.ORG link : CVE-2023-20169

JSON object : View

Products Affected

cisco

nexus_3172tq-32t
nexus_3548-xl
nexus_3524
nexus_3132c-z
nexus_3132q-xl
nexus_9232e
nexus_9508
nexus_3264q
nexus_3548-x
nexus_3172pq-xl
nexus_9504
nexus_3132q-v
nexus_3408-s
nexus_9516
nexus_3048
nexus_31108tc-v
nexus_3548
nexus_3464c
nx-os
nexus_3524-xl
nexus_3164q
nexus_3432d-s
nexus_3172pq
nexus_3232
nexus_3172tq
nexus_36180yc-r
nexus_34180yc
nexus_3524-x
nexus_92348gc-x
nexus_3172tq-xl
nexus_31108pc-v
nexus_3264c-e
nexus_34200yc-sm
nexus_31128pq
nexus_9408

CWE

CWE-788

Access of Memory Location After End of Buffer

CWE-20

Improper Input Validation

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An attacker could exploit this vulnerability by sending a crafted IS-IS packet to an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the unexpected restart of the IS-IS process, which could cause the affected device to reload. Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2 adjacent to the affected device."}], "lastModified": "2024-11-21T07:40:44.107", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:10.3\\(2\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8CE0E36D-08A6-48D5-A364-AC066F30F3CB"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FC2A6C31-438A-4CF5-A3F3-364B1672EB7D"}, {"criteria": "cpe:2.3:h:cisco:nexus_31108pc-v:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "4E930332-CDDD-48D5-93BC-C22D693BBFA2"}, {"criteria": "cpe:2.3:h:cisco:nexus_31108tc-v:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7BF4B8FE-E134-4491-B5C2-C1CFEB64731B"}, {"criteria": "cpe:2.3:h:cisco:nexus_31128pq:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F4226DA0-9371-401C-8247-E6E636A116C3"}, {"criteria": 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"cpe:2.3:h:cisco:nexus_3172tq-32t:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "0B43502B-FD53-465A-B60F-6A359C6ACD99"}, {"criteria": "cpe:2.3:h:cisco:nexus_3172tq-xl:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F3229124-B097-4AAC-8ACD-2F9C89DCC3AB"}, {"criteria": "cpe:2.3:h:cisco:nexus_3232:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1C84D24C-2256-42AF-898A-221EBE9FE1E4"}, {"criteria": "cpe:2.3:h:cisco:nexus_3264c-e:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "24FBE87B-8A4F-43A8-98A3-4A7D9C630937"}, {"criteria": "cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6ACD09AC-8B28-4ACB-967B-AB3D450BC137"}, {"criteria": "cpe:2.3:h:cisco:nexus_3408-s:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7D397349-CCC6-479B-9273-FB1FFF4F34F2"}, {"criteria": "cpe:2.3:h:cisco:nexus_34180yc:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DC7286A7-780F-4A45-940A-4AD5C9D0F201"}, {"criteria": 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7.4 /10