Vulnerability-Lookup

WID-SEC-W-2024-0504

Vulnerability from csaf_certbund - Published: 2024-02-28 23:00 - Updated: 2024-02-28 23:00

Summary

Cisco Nexus: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Severity

Mittel

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Bei der Cisco Nexus Serie handelt es sich um modulare Switching-Systeme der Data Center-Klasse.

Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cisco Nexus ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme: - CISCO Appliance

CVE-2024-20291

Es besteht eine Schwachstelle in Cisco Nexus. Dieser Fehler besteht in der Zugriffskontrollliste (ACL) für Port-Channel-Subinterfaces aufgrund einer falschen Hardwareprogrammierung, die es ermöglicht, Datenverkehr durch ein betroffenes Gerät zu senden, der eigentlich blockiert werden sollte. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um Sicherheitsmaßnahmen zu umgehen.

References

3 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://sec.cloudapps.cisco.com/security/center/c…	external

JSON

To clipboard

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      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
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    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Bei der Cisco Nexus Serie handelt es sich um modulare Switching-Systeme der Data Center-Klasse.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cisco Nexus ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "title": "Betroffene Betriebssysteme"
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    ],
    "publisher": {
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      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
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    "references": [
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        "summary": "WID-SEC-W-2024-0504 - CSAF Version",
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        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-po-acl-TkyePgvL"
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          "date": "2024-02-28T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
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      "status": "final",
      "version": "1"
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  "product_tree": {
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                "category": "product_version_range",
                "name": "NX-OS Software \u003c 9.3(12)",
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      "notes": [
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          "text": "Es besteht eine Schwachstelle in Cisco Nexus. Dieser Fehler besteht in der Zugriffskontrollliste (ACL) f\u00fcr Port-Channel-Subinterfaces aufgrund einer falschen Hardwareprogrammierung, die es erm\u00f6glicht, Datenverkehr durch ein betroffenes Ger\u00e4t zu senden, der eigentlich blockiert werden sollte. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um Sicherheitsma\u00dfnahmen zu umgehen."
        }
      ],
      "release_date": "2024-02-28T23:00:00.000+00:00",
      "title": "CVE-2024-20291"
    }
  ]
}

CVE-2024-20291 (GCVE-0-2024-20291)

Vulnerability from cvelistv5 – Published: 2024-02-28 16:16 – Updated: 2024-08-09 14:58

Summary

A vulnerability in the access control list (ACL) programming for port channel subinterfaces of Cisco Nexus 3000 and 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to send traffic that should be blocked through an affected device. This vulnerability is due to incorrect hardware programming that occurs when configuration changes are made to port channel member ports. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access network resources that should be protected by an ACL that was applied on port channel subinterfaces.

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-09 14:55 UTC

CWE

CWE-284 - Improper Access Control

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 443 records in the last 180 days details

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

4 products

Vendor	Product	Version
Cisco	Cisco NX-OS Software	Affected: 9.3(10) Affected: 9.3(11) Affected: 9.3(12)
cisco	nx-os	Affected: 9.3\(10\) cpe:2.3:o:cisco:nx-os:9.3\(10\):::::::*
cisco	nx-os	Affected: 9.3\(11\) cpe:2.3:o:cisco:nx-os:9.3\(11\):::::::*
cisco	nx-os	Affected: 9.3\(12\) cpe:2.3:o:cisco:nx-os:9.3\(12\):::::::*

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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