Vulnerability-Lookup

WID-SEC-W-2023-2126

Vulnerability from csaf_certbund - Published: 2023-08-23 22:00 - Updated: 2023-08-23 22:00

Summary

Cisco Nexus: Mehrere Schwachstellen

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 authentifizierter Angreifer kann mehrere Schwachstellen in Cisco Nexus ausnutzen, um Informationen offenzulegen, Dateien zu manipulieren oder einen Denial-of-Service-Zustand auszulösen.

Betroffene Betriebssysteme: - CISCO Appliance

CVE-2023-20169

Es besteht eine Schwachstelle in Cisco Nexus. Dieser Fehler besteht in Nexus-Switches der 3000er-Serie und Cisco Nexus-Switches der 9000er-Serie im Standalone-NX-OS-Modus aufgrund einer unzureichenden Eingabevalidierung beim Parsen eines IS-IS-Eingangs-Pakets. Ein nicht authentifizierter Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen.

CVE-2023-20115

Es besteht eine Schwachstelle in Cisco Nexus. Dieser Fehler besteht in Nexus-Switches der Serien 3000 und 9000 im Standalone-NX-OS-Modus aufgrund einer nicht ordnungsgemäß konfigurierten SFTP-Server-Implementierung. Ein entfernter authentifizierter Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen oder Daten zu manipulieren.

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

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "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 authentifizierter Angreifer kann mehrere Schwachstellen in Cisco Nexus ausnutzen, um Informationen offenzulegen, Dateien zu manipulieren oder einen Denial-of-Service-Zustand auszul\u00f6sen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-2126 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2126.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2126 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2126"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-08-23",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-n3_9k-isis-dos-FTCXB4Vb"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-08-23",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-sftp-xVAp5Hfd"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco Nexus: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2023-08-23T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:57:22.065+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2023-2126",
      "initial_release_date": "2023-08-23T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-08-23T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
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              {
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                "name": "Cisco Nexus 9000 Series Switches in standalone NX-OS mode",
                "product": {
                  "name": "Cisco Nexus 9000 Series Switches in standalone NX-OS mode",
                  "product_id": "T029477",
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                "name": "Cisco Nexus 3000 Series Switches",
                "product": {
                  "name": "Cisco Nexus 3000 Series Switches",
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        "name": "Cisco"
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  "vulnerabilities": [
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      "cve": "CVE-2023-20169",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Nexus. Dieser Fehler besteht in Nexus-Switches der 3000er-Serie und Cisco Nexus-Switches der 9000er-Serie im Standalone-NX-OS-Modus aufgrund einer unzureichenden Eingabevalidierung beim Parsen eines IS-IS-Eingangs-Pakets. Ein nicht authentifizierter Angreifer kann diese Schwachstelle ausnutzen, um einen Denial-of-Service-Zustand zu verursachen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029478",
          "T029477"
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      },
      "release_date": "2023-08-23T22:00:00.000+00:00",
      "title": "CVE-2023-20169"
    },
    {
      "cve": "CVE-2023-20115",
      "notes": [
        {
          "category": "description",
          "text": "Es besteht eine Schwachstelle in Cisco Nexus. Dieser Fehler besteht in Nexus-Switches der Serien 3000 und 9000 im Standalone-NX-OS-Modus aufgrund einer nicht ordnungsgem\u00e4\u00df konfigurierten SFTP-Server-Implementierung. Ein entfernter authentifizierter Angreifer kann diese Schwachstelle ausnutzen, um vertrauliche Informationen offenzulegen oder Daten zu manipulieren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T029478",
          "T029477"
        ]
      },
      "release_date": "2023-08-23T22:00:00.000+00:00",
      "title": "CVE-2023-20115"
    }
  ]
}

CVE-2023-20169 (GCVE-0-2023-20169)

Vulnerability from cvelistv5 – Published: 2023-08-23 18:19 – Updated: 2024-08-02 09:05

Summary

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.

Severity ?

7.4 (High)


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

CWE

CWE-788 - Access of Memory Location After End of Buffer

Assigner

cisco

References

URL

	Vendor	Product	Version
	Cisco	Cisco NX-OS Software	Affected: 10.3(2)

CVE-2023-20115 (GCVE-0-2023-20115)

Vulnerability from cvelistv5 – Published: 2023-08-23 18:20 – Updated: 2024-10-02 18:56

Summary

A vulnerability in the SFTP server implementation for Cisco Nexus 3000 Series Switches and 9000 Series Switches in standalone NX-OS mode could allow an authenticated, remote attacker to download or overwrite files from the underlying operating system of an affected device. This vulnerability is due to a logic error when verifying the user role when an SFTP connection is opened to an affected device. An attacker could exploit this vulnerability by connecting and authenticating via SFTP as a valid, non-administrator user. A successful exploit could allow the attacker to read or overwrite files from the underlying operating system with the privileges of the authenticated user. There are workarounds that address this vulnerability.

Severity ?

5.4 (Medium)


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

CWE

CWE-671 - Lack of Administrator Control over Security

Assigner

cisco

References

URL

Tags

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

Impacted products

	Vendor	Product	Version
	Cisco	Cisco NX-OS Software	Affected: 9.2(1) Affected: 9.2(2) Affected: 9.2(2t) Affected: 9.2(3) Affected: 9.2(4) Affected: 9.2(2v) Affected: 9.3(1) Affected: 9.3(2) Affected: 9.3(3) Affected: 9.3(4) Affected: 9.3(5) Affected: 9.3(6) Affected: 9.3(7) Affected: 9.3(7a) Affected: 9.3(8) Affected: 9.3(9) Affected: 9.3(10) Affected: 9.3(11) Affected: 10.1(1) Affected: 10.1(2) Affected: 10.1(2t) Affected: 10.2(1) Affected: 10.2(1q) Affected: 10.2(2) Affected: 10.2(3) Affected: 10.2(3t) Affected: 10.2(4) Affected: 10.2(5) Affected: 10.3(1) Affected: 10.3(2)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:57:36.187Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "name": "cisco-sa-nxos-sftp-xVAp5Hfd",
            "tags": [
              "x_transferred"
            ],
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-sftp-xVAp5Hfd"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-20115",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-02T18:56:28.348139Z",
                "version": "2.0.3"
              },
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "vendor": "Cisco",
          "versions": [
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              "status": "affected",
              "version": "9.2(1)"
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              "version": "9.3(6)"
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            },
            {
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            },
            {
              "status": "affected",
              "version": "9.3(8)"
            },
            {
              "status": "affected",
              "version": "9.3(9)"
            },
            {
              "status": "affected",
              "version": "9.3(10)"
            },
            {
              "status": "affected",
              "version": "9.3(11)"
            },
            {
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              "version": "10.1(1)"
            },
            {
              "status": "affected",
              "version": "10.1(2)"
            },
            {
              "status": "affected",
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            },
            {
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              "status": "affected",
              "version": "10.2(4)"
            },
            {
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              "version": "10.2(5)"
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        }
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      "exploits": [
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        }
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      "metrics": [
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      },
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          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-sftp-xVAp5Hfd"
        }
      ],
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        "defects": [
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        ],
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  "cveMetadata": {
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

WID-SEC-W-2023-2126

CVE-2023-20169 (GCVE-0-2023-20169)

CVE-2023-20115 (GCVE-0-2023-20115)

Tags

Sightings

Nomenclature