Vulnerability-Lookup

CNVD-2020-35940

Vulnerability from cnvd - Published: 2020-07-01

Title

Lenovo System Lock Preinstallation driver任意代码执行漏洞

Description

Lenovo System Lock Preinstallation driver是中国联想（Lenovo）公司的一款系统锁定预安装（SLP）驱动程序。 Lenovo System Lock Preinstallation driver（Notebook和ThinkStation系列）中的SMI回调函数存在安全漏洞。攻击者可利用该漏洞执行任意代码。

Severity

中

Patch Name

Lenovo System Lock Preinstallation driver任意代码执行漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://support.lenovo.com/us/en/product_security/LEN-30042

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-8321

Impacted products

Name
Lenovo System Lock Preinstallation driver

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-8321"
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  "description": "Lenovo System Lock Preinstallation driver\u662f\u4e2d\u56fd\u8054\u60f3\uff08Lenovo\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7cfb\u7edf\u9501\u5b9a\u9884\u5b89\u88c5\uff08SLP\uff09\u9a71\u52a8\u7a0b\u5e8f\u3002\n\nLenovo System Lock Preinstallation driver\uff08Notebook\u548cThinkStation\u7cfb\u5217\uff09\u4e2d\u7684SMI\u56de\u8c03\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-35940",
  "openTime": "2020-07-01",
  "patchDescription": "Lenovo System Lock Preinstallation driver\u662f\u4e2d\u56fd\u8054\u60f3\uff08Lenovo\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7cfb\u7edf\u9501\u5b9a\u9884\u5b89\u88c5\uff08SLP\uff09\u9a71\u52a8\u7a0b\u5e8f\u3002\r\n\r\nLenovo System Lock Preinstallation driver\uff08Notebook\u548cThinkStation\u7cfb\u5217\uff09\u4e2d\u7684SMI\u56de\u8c03\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\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": "Lenovo System Lock Preinstallation driver\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Lenovo System Lock Preinstallation driver"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8321",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-10",
  "title": "Lenovo System Lock Preinstallation driver\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

CVE-2020-8321 (GCVE-0-2020-8321)

Vulnerability from cvelistv5 – Published: 2020-06-09 19:50 – Updated: 2024-09-17 00:35

Summary

A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.

Severity

6.4 (Medium)


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

CWE

Arbitrary code execution

Assigner

lenovo mitre root Scorecard

References

1 reference

URL	Tags
https://support.lenovo.com/us/en/product_security…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Lenovo	BIOS	Affected: various

Date Public

2020-06-09 00:00

Credits

Lenovo thanks yngwei (@yngweijw), driedfish (@d3af1sh), and MengHao, Li of IIE VARAS

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T09:56:28.334Z",
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            "tags": [
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              "x_transferred"
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            "url": "https://support.lenovo.com/us/en/product_security/LEN-30042"
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            "attackComplexity": "HIGH",
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            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
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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.
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CNVD-2020-35940

CVE-2020-8321 (GCVE-0-2020-8321)

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