Vulnerability-Lookup

CNVD-2021-02357

Vulnerability from cnvd - Published: 2021-01-13

Title

Dell Inspiron 5675 BIOS访问控制错误漏洞

Description

Dell Inspiron 5675 BIOS是美国Dell公司的一个可为设备提供基本输入输出、开机后自检和系统自启动功能的程序。 Dell Inspiron 5675 BIOS versions prior to 1.4.1版本存在安全漏洞，具有系统内存访问权限的本地攻击者可利用该漏洞可以通过重写runtimesservices结构在System Management Mode (SMM)下执行任意代码。

Severity

高

Patch Name

Dell Inspiron 5675 BIOS访问控制错误漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-26186

Impacted products

Name
Dell Inspiron 5675 BIOS <1.4.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-26186",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-26186"
    }
  },
  "description": "Dell Inspiron 5675 BIOS\u662f\u7f8e\u56fdDell\u516c\u53f8\u7684\u4e00\u4e2a\u53ef\u4e3a\u8bbe\u5907\u63d0\u4f9b\u57fa\u672c\u8f93\u5165\u8f93\u51fa\u3001\u5f00\u673a\u540e\u81ea\u68c0\u548c\u7cfb\u7edf\u81ea\u542f\u52a8\u529f\u80fd\u7684\u7a0b\u5e8f\u3002\n\nDell Inspiron 5675 BIOS versions prior to 1.4.1\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5177\u6709\u7cfb\u7edf\u5185\u5b58\u8bbf\u95ee\u6743\u9650\u7684\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u901a\u8fc7\u91cd\u5199runtimesservices\u7ed3\u6784\u5728System Management Mode (SMM)\u4e0b\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-02357",
  "openTime": "2021-01-13",
  "patchDescription": "Dell Inspiron 5675 BIOS\u662f\u7f8e\u56fdDell\u516c\u53f8\u7684\u4e00\u4e2a\u53ef\u4e3a\u8bbe\u5907\u63d0\u4f9b\u57fa\u672c\u8f93\u5165\u8f93\u51fa\u3001\u5f00\u673a\u540e\u81ea\u68c0\u548c\u7cfb\u7edf\u81ea\u542f\u52a8\u529f\u80fd\u7684\u7a0b\u5e8f\u3002\r\n\r\nDell Inspiron 5675 BIOS versions prior to 1.4.1\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5177\u6709\u7cfb\u7edf\u5185\u5b58\u8bbf\u95ee\u6743\u9650\u7684\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u901a\u8fc7\u91cd\u5199runtimesservices\u7ed3\u6784\u5728System Management Mode (SMM)\u4e0b\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Dell Inspiron 5675 BIOS\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Dell Inspiron 5675 BIOS \u003c1.4.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-26186",
  "serverity": "\u9ad8",
  "submitTime": "2021-01-12",
  "title": "Dell Inspiron 5675 BIOS\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-26186 (GCVE-0-2020-26186)

Vulnerability from cvelistv5 – Published: 2021-01-08 18:55 – Updated: 2024-09-17 02:26

Summary

Dell Inspiron 5675 BIOS versions prior to 1.4.1 contain a UEFI BIOS RuntimeServices overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the RuntimeServices structure to execute arbitrary code in System Management Mode (SMM).

Severity

6.8 (Medium)


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

CWE

CWE-642 - External Control of Critical State Data

Assigner

dell mitre root Scorecard

References

1 reference

URL	Tags
https://www.dell.com/support/kbdoc/en-us/00018064…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Dell	CPG BIOS	Affected: unspecified , < 1.4.1 (custom)

Date Public

2020-12-16 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:49:07.191Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "CPG BIOS",
          "vendor": "Dell",
          "versions": [
            {
              "lessThan": "1.4.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2020-12-16T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Dell Inspiron 5675 BIOS versions prior to 1.4.1 contain a UEFI BIOS RuntimeServices overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the RuntimeServices structure to execute arbitrary code in System Management Mode (SMM)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-642",
              "description": "CWE-642: External Control of Critical State Data",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-08T18:55:13.000Z",
        "orgId": "c550e75a-17ff-4988-97f0-544cde3820fe",
        "shortName": "dell"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secure@dell.com",
          "DATE_PUBLIC": "2020-12-16",
          "ID": "CVE-2020-26186",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "CPG BIOS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "1.4.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Dell"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Dell Inspiron 5675 BIOS versions prior to 1.4.1 contain a UEFI BIOS RuntimeServices overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the RuntimeServices structure to execute arbitrary code in System Management Mode (SMM)."
            }
          ]
        },
        "impact": {
          "cvss": {
            "baseScore": 6.8,
            "baseSeverity": "Medium",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-642: External Control of Critical State Data"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability",
              "refsource": "MISC",
              "url": "https://www.dell.com/support/kbdoc/en-us/000180645/dsa-2020-247-dell-client-platform-security-update-for-uefi-bios-runtimeservices-overwrite-vulnerability"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c550e75a-17ff-4988-97f0-544cde3820fe",
    "assignerShortName": "dell",
    "cveId": "CVE-2020-26186",
    "datePublished": "2021-01-08T18:55:13.689Z",
    "dateReserved": "2020-09-30T00:00:00.000Z",
    "dateUpdated": "2024-09-17T02:26:57.793Z",
    "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.

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

CNVD-2021-02357

CVE-2020-26186 (GCVE-0-2020-26186)

Tags

Sightings

Nomenclature

Related by attack behaviour