Vulnerability-Lookup

GHSA-QMHJ-WG3R-X2H5

Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2025-05-22 21:30

Details

Medtronic MyCareLink Smart 25000 all versions are vulnerable to a race condition in the MCL Smart Patient Reader software update system, which allows unsigned firmware to be uploaded and executed on the Patient Reader. If exploited an attacker could remotely execute code on the MCL Smart Patient Reader device, leading to control of the device.

Severity

8.1 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2020-27252"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-12-14T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Medtronic MyCareLink Smart 25000 all versions are vulnerable to a race condition in the MCL Smart Patient Reader software update system, which allows unsigned firmware to be uploaded and executed on the Patient Reader. If exploited an attacker could remotely execute code on the MCL Smart Patient Reader device, leading to control of the device.",
  "id": "GHSA-qmhj-wg3r-x2h5",
  "modified": "2025-05-22T21:30:31Z",
  "published": "2022-05-24T17:36:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27252"
    },
    {
      "type": "WEB",
      "url": "https://global.medtronic.com/xg-en/product-security/security-bulletins/mycarelink-smart-security-vulnerability-patch.html"
    },
    {
      "type": "WEB",
      "url": "https://us-cert.cisa.gov/ics/advisories/icsma-20-345-01"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-20-345-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2020-27252 (GCVE-0-2020-27252)

Vulnerability from cvelistv5 – Published: 2020-12-14 19:19 – Updated: 2025-05-22 19:39

Title

Medtronic MyCareLink Smart Time-of-check Time-of-use Race Condition

Summary

Medtronic MyCareLink Smart 25000 is vulnerable to a race condition in the MCL Smart Patient Reader software update system, which allows unsigned firmware to be uploaded and executed on the Patient Reader. If exploited, an attacker could remotely execute code on the MCL Smart Patient Reader device, leading to control of the device.

Severity

8.8 (High)


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

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

icscert CNA under the icscert root

CNA scorecard B 75/100 over 342 records in the last 180 days details

References

3 references

URL	Tags
https://global.medtronic.com/xg-en/product-securi…	x_refsource_MISC
https://www.cisa.gov/news-events/ics-medical-advi…
https://us-cert.cisa.gov/ics/advisories/icsma-20-345-01	x_refsource_MISCx_transferred

Impacted products

1 product

Vendor	Product	Version
Medtronic	Smart Model 25000 Patient Reader	Affected: All versions

Credits

Sternum, based in Tel Aviv, Israel, discovered and initially reported these vulnerabilities to Medtronic.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:11:36.413Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsma-20-345-01"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Smart Model 25000 Patient Reader",
          "vendor": "Medtronic",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Sternum, based in Tel Aviv, Israel, discovered and initially reported these vulnerabilities to Medtronic."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eMedtronic MyCareLink Smart 25000 is \n\n\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003evulnerable to a race condition in the MCL Smart Patient Reader software update system, which allows unsigned firmware to be uploaded and executed on the Patient Reader. If exploited, an attacker could remotely execute code on the MCL Smart Patient Reader device, leading to control of the device.\u003c/span\u003e\n\n\u003cbr\u003e\u003c/p\u003e"
            }
          ],
          "value": "Medtronic MyCareLink Smart 25000 is \n\nvulnerable to a race condition in the MCL Smart Patient Reader software update system, which allows unsigned firmware to be uploaded and executed on the Patient Reader. If exploited, an attacker could remotely execute code on the MCL Smart Patient Reader device, leading to control of the device."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-22T19:39:10.747Z",
        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "shortName": "icscert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://global.medtronic.com/xg-en/product-security/security-bulletins/mycarelink-smart-security-vulnerability-patch.html"
        },
        {
          "url": "https://www.cisa.gov/news-events/ics-medical-advisories/icsma-20-345-01"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA firmware update to eliminates these vulnerabilities has been developed by Medtronic and is available by updating the MyCareLink Smartapp via the associated mobile application store. Upgrading to the latest v5.2 mobile application version will ensure the Patient Reader is also updated on next use. The user\u2019s smart phone must be updated to the following operating system version for the patches to be applied: iOS 10 and above; Android 6.0 and above.\u003c/p\u003e\u003cp\u003eMedtronic has released additional \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.medtronic.com/security\"\u003epatient focused information\u003c/a\u003e: \u003c/p\u003e\u003cp\u003e\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://www.medtronic.com/xg-en/product-security/security-bulletins.html\"\u003ehttps://www.medtronic.com/xg-en/product-security/security-bulletins.html \u003c/a\u003e\u003c/p\u003e\n\n\u003cbr\u003e"
            }
          ],
          "value": "A firmware update to eliminates these vulnerabilities has been developed by Medtronic and is available by updating the MyCareLink Smartapp via the associated mobile application store. Upgrading to the latest v5.2 mobile application version will ensure the Patient Reader is also updated on next use. The user\u2019s smart phone must be updated to the following operating system version for the patches to be applied: iOS 10 and above; Android 6.0 and above.\n\nMedtronic has released additional  patient focused information https://www.medtronic.com/security : \n\n https://www.medtronic.com/xg-en/product-security/security-bulletins.html  https://www.medtronic.com/xg-en/product-security/security-bulletins.html"
        }
      ],
      "source": {
        "advisory": "ICSMA-20-345-01",
        "discovery": "EXTERNAL"
      },
      "title": "Medtronic MyCareLink Smart Time-of-check Time-of-use Race Condition",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eIn response to these vulnerabilities, Medtronic has applied additional controls for monitoring and responding to improper use of the MCL Smart Patient Reader:\u003c/p\u003e\u003cul\u003e\u003cli\u003eMedtronic has implemented enhanced integrity validation (EIV) technology, which provides early detection and real-time mitigation of known vulnerability exploitation attempts.\u003c/li\u003e\u003cli\u003eMedtronic has also implemented advanced detection system technology, which enables device-level logging and monitoring of all device activity and behavior.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eMedtronic recommends that users take additional defensive measures to minimize risk. Specifically, users should:\u003c/p\u003e\u003cul\u003e\u003cli\u003eMaintain good physical control over home monitors.\u003cul\u003e\u003cli\u003eThis includes only using home monitors in private environments such as a home, apartment, or otherwise physically controlled environment.\u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003cli\u003eUse only home monitors obtained directly from your healthcare provider or a Medtronic representative.\u003c/li\u003e\u003cli\u003ePatients should ensure that the operating system of their mobile phone is updated to the latest version of the available Android or Apple iOS operating system.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eReport any concerning behavior regarding these products to your healthcare provider or a Medtronic representative.\u003c/p\u003e\n\n\u003cbr\u003e"
            }
          ],
          "value": "In response to these vulnerabilities, Medtronic has applied additional controls for monitoring and responding to improper use of the MCL Smart Patient Reader:\n\n  *  Medtronic has implemented enhanced integrity validation (EIV) technology, which provides early detection and real-time mitigation of known vulnerability exploitation attempts.\n  *  Medtronic has also implemented advanced detection system technology, which enables device-level logging and monitoring of all device activity and behavior.\n\n\nMedtronic recommends that users take additional defensive measures to minimize risk. Specifically, users should:\n\n  *  Maintain good physical control over home monitors.  *  This includes only using home monitors in private environments such as a home, apartment, or otherwise physically controlled environment.\n\n\n\n  *  Use only home monitors obtained directly from your healthcare provider or a Medtronic representative.\n  *  Patients should ensure that the operating system of their mobile phone is updated to the latest version of the available Android or Apple iOS operating system.\n\n\nReport any concerning behavior regarding these products to your healthcare provider or a Medtronic representative."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "ics-cert@hq.dhs.gov",
          "ID": "CVE-2020-25183",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Medtronic MyCareLink Smart 25000 Reader",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Smart 25000 all versions"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Medtronic MyCareLink Smart 25000 all versions contain an authentication protocol vuln where the method used to auth between MCL Smart Patient Reader and MyCareLink Smart mobile app is vulnerable to bypass. This vuln allows attacker to use other mobile device or malicious app on smartphone to auth to the patient\u2019s Smart Reader, fools the device into thinking its communicating with the actual smart phone application when executed in range of Bluetooth."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "IMPROPER AUTHENTICATION CWE-287"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsma-20-345-01",
              "refsource": "MISC",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsma-20-345-01"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2020-27252",
    "datePublished": "2020-12-14T19:19:00.000Z",
    "dateReserved": "2020-10-19T00:00:00.000Z",
    "dateUpdated": "2025-05-22T19:39:10.747Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.

Action not permitted