Vulnerability-Lookup

WID-SEC-W-2023-1606

Vulnerability from csaf_certbund - Published: 2023-06-29 22:00 - Updated: 2023-06-29 22:00

Summary

Microsoft Azure RTOS: Schwachstelle ermöglicht Codeausführung und DoS

Severity

Hoch

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: Azure RTOS ist ein Echtzeitbetriebssystem (RTOS) für IoT- und Edge-Geräte, die mit Mikrocontroller-Einheiten (MCUs) betrieben werden.

Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft Azure RTOS ausnutzen, um beliebigen Programmcode auszuführen oder einen Denial of Service zu verursachen.

Betroffene Betriebssysteme: - Sonstiges

CVE-2022-36063

Es existiert eine Schwachstelle in Microsoft Azure RTOS. In der USBX-Implementierung der Host-Unterstützung für USB CDC ECM besteht ein Integer-Unterlauf und ein Pufferüberlauf in der Funktion _ux_host_class_cdc_ecm_mac_address_get. Wenn die Länge des Mac-Adress-String-Deskriptors auf 0 oder 1 gesetzt wird, kann der Integer-Unterlauf, gefolgt von einem Pufferüberlauf des Arrays cdc_ecm -> ux_host_class_cdc_ecm_node_id, verursacht werden. Ein Angreifer kann diese Schwachstelle ausnutzen, um Code auszuführen oder einen Denial of Service Zustand zu verursachen.

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://github.com/azure-rtos/usbx/security/advis…	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "Azure RTOS ist ein Echtzeitbetriebssystem (RTOS) f\u00fcr IoT- und Edge-Ger\u00e4te, die mit Mikrocontroller-Einheiten (MCUs) betrieben werden.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft Azure RTOS ausnutzen, um beliebigen Programmcode auszuf\u00fchren oder einen Denial of Service zu verursachen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges",
        "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-2023-1606 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1606.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-1606 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1606"
      },
      {
        "category": "external",
        "summary": "GitHub Advisory Database - Azure RTOS vom 2023-06-29",
        "url": "https://github.com/azure-rtos/usbx/security/advisories/GHSA-chpp-5fv9-6368"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft Azure RTOS: Schwachstelle erm\u00f6glicht Codeausf\u00fchrung und DoS",
    "tracking": {
      "current_release_date": "2023-06-29T22:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:53:57.744+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2023-1606",
      "initial_release_date": "2023-06-29T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-06-29T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Microsoft Azure RTOS USBX \u003c 6.1.12",
            "product": {
              "name": "Microsoft Azure RTOS USBX \u003c 6.1.12",
              "product_id": "T028377",
              "product_identification_helper": {
                "cpe": "cpe:/o:microsoft:azure_rtos:usbx__6.1.12"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-36063",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Microsoft Azure RTOS. In der USBX-Implementierung der Host-Unterst\u00fctzung f\u00fcr USB CDC ECM besteht ein Integer-Unterlauf und ein Puffer\u00fcberlauf in der Funktion _ux_host_class_cdc_ecm_mac_address_get. Wenn die L\u00e4nge des Mac-Adress-String-Deskriptors auf 0 oder 1 gesetzt wird, kann der Integer-Unterlauf, gefolgt von einem Puffer\u00fcberlauf des Arrays cdc_ecm -\u003e ux_host_class_cdc_ecm_node_id, verursacht werden. Ein Angreifer kann diese Schwachstelle ausnutzen, um Code auszuf\u00fchren oder einen Denial of Service Zustand zu verursachen."
        }
      ],
      "release_date": "2023-06-29T22:00:00.000+00:00",
      "title": "CVE-2022-36063"
    }
  ]
}

CVE-2022-36063 (GCVE-0-2022-36063)

Vulnerability from cvelistv5 – Published: 2022-10-10 00:00 – Updated: 2025-04-22 17:18

Title

USBX Host CDC ECM integer underflow with buffer overflow

Summary

Azure RTOS USBx is a USB host, device, and on-the-go (OTG) embedded stack, fully integrated with Azure RTOS ThreadX and available for all Azure RTOS ThreadX–supported processors. Azure RTOS USBX implementation of host support for USB CDC ECM includes an integer underflow and a buffer overflow in the `_ux_host_class_cdc_ecm_mac_address_get` function which may be potentially exploited to achieve remote code execution or denial of service. Setting mac address string descriptor length to a `0` or `1` allows an attacker to introduce an integer underflow followed (string_length) by a buffer overflow of the `cdc_ecm -> ux_host_class_cdc_ecm_node_id` array. This may allow one to redirect the code execution flow or introduce a denial of service. The fix has been included in USBX release [6.1.12](https://github.com/azure-rtos/usbx/releases/tag/v6.1.12_rel). Improved mac address string descriptor length validation to check for unexpectedly small values may be used as a workaround.

Severity

7.6 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:43 UTC

CWE

CWE-121 - Stack-based Buffer Overflow
CWE-191 - Integer Underflow (Wrap or Wraparound)

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/azure-rtos/usbx/security/advis…
https://github.com/azure-rtos/usbx/blob/master/co…
https://github.com/azure-rtos/usbx/releases/tag/v…

Impacted products

1 product

Vendor	Product	Version
azure-rtos	usbx	Affected: < 6.1.12

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T09:52:00.523Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
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            "tags": [
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            "url": "https://github.com/azure-rtos/usbx/security/advisories/GHSA-chpp-5fv9-6368"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/azure-rtos/usbx/blob/master/common/usbx_host_classes/src/ux_host_class_cdc_ecm_mac_address_get.c#L264"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/azure-rtos/usbx/releases/tag/v6.1.12_rel"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-36063",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-22T15:43:39.804651Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "usbx",
          "vendor": "azure-rtos",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 6.1.12"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Azure RTOS USBx is a USB host, device, and on-the-go (OTG) embedded stack, fully integrated with Azure RTOS ThreadX and available for all Azure RTOS ThreadX\u2013supported processors. Azure RTOS USBX implementation of host support for USB CDC ECM includes an integer underflow and a buffer overflow in the `_ux_host_class_cdc_ecm_mac_address_get` function which may be potentially exploited to achieve remote code execution or denial of service. Setting mac address string descriptor length to a `0` or `1` allows an attacker to introduce an integer underflow followed (string_length) by a buffer overflow of the `cdc_ecm -\u003e ux_host_class_cdc_ecm_node_id` array. This may allow one to redirect the code execution flow or introduce a denial of service. The fix has been included in USBX release [6.1.12](https://github.com/azure-rtos/usbx/releases/tag/v6.1.12_rel). Improved mac address string descriptor length validation to check for unexpectedly small values may be used as a workaround."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.1"
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      ],
      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
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        },
        {
          "descriptions": [
            {
              "cweId": "CWE-191",
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              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
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        {
          "url": "https://github.com/azure-rtos/usbx/blob/master/common/usbx_host_classes/src/ux_host_class_cdc_ecm_mac_address_get.c#L264"
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        {
          "url": "https://github.com/azure-rtos/usbx/releases/tag/v6.1.12_rel"
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      ],
      "source": {
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        "discovery": "UNKNOWN"
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      "title": "USBX Host CDC ECM integer underflow with buffer overflow"
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    "datePublished": "2022-10-10T00:00:00.000Z",
    "dateReserved": "2022-07-15T00:00:00.000Z",
    "dateUpdated": "2025-04-22T17:18:49.562Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.