cnvd - cnvd-2021-03009

CNVD-2021-03009

Vulnerability from cnvd - Published: 2021-01-13

Title

Dell Inspiron 7347 BIOS引导服务覆盖漏洞

Description

Dell Inspiron 7347 BIOS是戴尔（Dell）的一款系统更新驱动程序。 Dell Inspiron 7347 BIOS A13之前的版本存在UEFI BIOS引导服务覆盖漏洞，攻击者可以通过覆盖EFI_BOOT_服务结构以在系统管理模式（SMM）下执行任意代码。

Severity

高

Patch Name

Dell Inspiron 7347 BIOS引导服务覆盖漏洞的补丁

Patch Description

Dell Inspiron 7347 BIOS是戴尔（Dell）的一款系统更新驱动程序。 Dell Inspiron 7347 BIOS A13之前的版本存在UEFI BIOS引导服务覆盖漏洞，攻击者可以通过覆盖EFI_BOOT_服务结构以在系统管理模式（SMM）下执行任意代码。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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/article/zh-tw/sln322616/dsa-2020-203-dell-client-platform-security-update-for-uefi-bios-boot-services-overwrite-vulnerabilities?lang=en

Reference

https://www.dell.com/support/article/SLN322616

Impacted products

Name
DELL Dell Inspiron 7347 BIOS <A13

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-5376",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-5376"
    }
  },
  "description": "Dell Inspiron 7347 BIOS\u662f\u6234\u5c14\uff08Dell\uff09\u7684\u4e00\u6b3e\u7cfb\u7edf\u66f4\u65b0\u9a71\u52a8\u7a0b\u5e8f\u3002\n\nDell Inspiron 7347 BIOS A13\u4e4b\u524d\u7684\u7248\u672c\u5b58\u5728UEFI BIOS\u5f15\u5bfc\u670d\u52a1\u8986\u76d6\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u8986\u76d6EFI_BOOT_\u670d\u52a1\u7ed3\u6784\u4ee5\u5728\u7cfb\u7edf\u7ba1\u7406\u6a21\u5f0f\uff08SMM\uff09\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/article/zh-tw/sln322616/dsa-2020-203-dell-client-platform-security-update-for-uefi-bios-boot-services-overwrite-vulnerabilities?lang=en",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-03009",
  "openTime": "2021-01-13",
  "patchDescription": "Dell Inspiron 7347 BIOS\u662f\u6234\u5c14\uff08Dell\uff09\u7684\u4e00\u6b3e\u7cfb\u7edf\u66f4\u65b0\u9a71\u52a8\u7a0b\u5e8f\u3002\r\n\r\nDell Inspiron 7347 BIOS A13\u4e4b\u524d\u7684\u7248\u672c\u5b58\u5728UEFI BIOS\u5f15\u5bfc\u670d\u52a1\u8986\u76d6\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u8986\u76d6EFI_BOOT_\u670d\u52a1\u7ed3\u6784\u4ee5\u5728\u7cfb\u7edf\u7ba1\u7406\u6a21\u5f0f\uff08SMM\uff09\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 7347 BIOS\u5f15\u5bfc\u670d\u52a1\u8986\u76d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "DELL Dell Inspiron 7347 BIOS \u003cA13"
  },
  "referenceLink": "https://www.dell.com/support/article/SLN322616",
  "serverity": "\u9ad8",
  "submitTime": "2020-09-03",
  "title": "Dell Inspiron 7347 BIOS\u5f15\u5bfc\u670d\u52a1\u8986\u76d6\u6f0f\u6d1e"
}

CVE-2020-5376 (GCVE-0-2020-5376)

Vulnerability from cvelistv5 – Published: 2020-09-02 20:55 – Updated: 2024-09-16 22:55

Summary

Dell Inspiron 7347 BIOS versions prior to A13 contain a UEFI BIOS Boot Services overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the EFI_BOOT_SERVICES 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-416 - Use After Free

Assigner

dell

References

URL

Tags

https://www.dell.com/support/article/SLN322616

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Dell	CPG BIOS	Affected: unspecified , < A13 (custom)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:30:24.177Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://www.dell.com/support/article/SLN322616"
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        ],
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    "cna": {
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          "vendor": "Dell",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
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      "datePublic": "2020-09-01T00:00:00",
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "metrics": [
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            "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",
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          "url": "https://www.dell.com/support/article/SLN322616"
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      "x_legacyV4Record": {
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          "ID": "CVE-2020-5376",
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        },
        "affects": {
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                    {
                      "product_name": "CPG BIOS",
                      "version": {
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                          {
                            "version_affected": "\u003c",
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  "cveMetadata": {
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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

CNVD-2021-03009

CVE-2020-5376 (GCVE-0-2020-5376)

Tags

Sightings

Nomenclature