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.

Metrics

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00067.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Cisco Subscribe
Nexus 3048 Subscribe
Nexus 31108pc-v Subscribe
Nexus 31108tc-v Subscribe
Nexus 31128pq Subscribe
Nexus 3132c-z Subscribe
Nexus 3132q-v Subscribe
Nexus 3132q-xl Subscribe
Nexus 3164q Subscribe
Nexus 3172pq Subscribe
Nexus 3172pq-xl Subscribe
Nexus 3172tq Subscribe
Nexus 3172tq-32t Subscribe
Nexus 3172tq-xl Subscribe
Nexus 3232 Subscribe
Nexus 3264c-e Subscribe
Nexus 3264q Subscribe
Nexus 3408-s Subscribe
Nexus 34180yc Subscribe
Nexus 34200yc-sm Subscribe
Nexus 3432d-s Subscribe
Nexus 3464c Subscribe
Nexus 3524 Subscribe
Nexus 3524-x Subscribe
Nexus 3524-xl Subscribe
Nexus 3548 Subscribe
Nexus 3548-x Subscribe
Nexus 3548-xl Subscribe
Nexus 36180yc-r Subscribe
Nexus 9232e Subscribe
Nexus 92348gc-x Subscribe
Nexus 9408 Subscribe
Nexus 9504 Subscribe
Nexus 9508 Subscribe
Nexus 9516 Subscribe
Nx-os Subscribe

Configuration 1 [-]

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:-:*:*:*:*:*:*:*

No data.

No data.

Advisories
Source ID Title
EUVD EUVD EUVD-2023-24348 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.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-n3_9k-isis-dos-FTCXB4Vb cve-icon cve-icon
History

No history.

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-08-02T09:05:36.905Z

Reserved: 2022-10-27T18:47:50.362Z

Link: CVE-2023-20169

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-08-23T19:15:07.893

Modified: 2024-11-21T07:40:44.107

Link: CVE-2023-20169

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses