Vulnerability-Lookup

GHSA-898H-342V-MPJX

Vulnerability from github – Published: 2022-05-24 17:33 – Updated: 2022-05-24 17:33

Details

The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-12926"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-11-12T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device.",
  "id": "GHSA-898h-342v-mpjx",
  "modified": "2022-05-24T17:33:37Z",
  "published": "2022-05-24T17:33:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12926"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-12926 (GCVE-0-2020-12926)

Vulnerability from cvelistv5 – Published: 2020-11-12 19:08 – Updated: 2024-08-04 12:11

Summary

Severity

No CVSS data available.

CWE

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

Assigner

AMD mitre root

References

1 reference

URL	Tags
https://www.amd.com/en/corporate/product-security	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	AMD's fTPM implementation	Affected: Each Linux distro determines its own version.

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:11:19.071Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.amd.com/en/corporate/product-security"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "AMD\u0027s fTPM implementation",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Each Linux distro determines its own version."
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-11-12T19:08:52.000Z",
        "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "shortName": "AMD"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.amd.com/en/corporate/product-security"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@amd.com",
          "ID": "CVE-2020-12926",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "AMD\u0027s fTPM implementation",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Each Linux distro determines its own version."
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.amd.com/en/corporate/product-security",
              "refsource": "MISC",
              "url": "https://www.amd.com/en/corporate/product-security"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
    "assignerShortName": "AMD",
    "cveId": "CVE-2020-12926",
    "datePublished": "2020-11-12T19:08:52.000Z",
    "dateReserved": "2020-05-15T00:00:00.000Z",
    "dateUpdated": "2024-08-04T12:11:19.071Z",
    "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.