Vulnerability-Lookup

CNVD-2020-52390

Vulnerability from cnvd - Published: 2020-09-17

Title

Lenovo System Update竞争条件漏洞（CNVD-2020-52390）

Description

Lenovo System Update是中国联想（Lenovo）公司的一款用于检查驱动程序更新并安装的应用程序。 Lenovo System Update 5.07.0106之前版本中存在安全漏洞。攻击者可利用该漏洞特权升级。

Severity

中

Patch Name

Lenovo System Update竞争条件漏洞（CNVD-2020-52390）的补丁

Patch Description

Lenovo System Update是中国联想（Lenovo）公司的一款用于检查驱动程序更新并安装的应用程序。 Lenovo System Update中存在安全漏洞。攻击者可利用该漏洞特权升级。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://support.lenovo.com/us/en/product_security/LEN-42150

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-8342

Impacted products

Name
Lenovo Lenovo System Update <5.07.0106

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8342",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-8342"
    }
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-52390",
  "openTime": "2020-09-17",
  "patchDescription": "Lenovo System Update\u662f\u4e2d\u56fd\u8054\u60f3\uff08Lenovo\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7528\u4e8e\u68c0\u67e5\u9a71\u52a8\u7a0b\u5e8f\u66f4\u65b0\u5e76\u5b89\u88c5\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nLenovo System Update\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7279\u6743\u5347\u7ea7\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 Update\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\uff08CNVD-2020-52390\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Lenovo Lenovo System Update \u003c5.07.0106"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8342",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-16",
  "title": "Lenovo System Update\u7ade\u4e89\u6761\u4ef6\u6f0f\u6d1e\uff08CNVD-2020-52390\uff09"
}

CVE-2020-8342 (GCVE-0-2020-8342)

Vulnerability from cvelistv5 – Published: 2020-09-15 14:20 – Updated: 2024-09-17 00:01

Summary

A race condition vulnerability was reported in Lenovo System Update prior to version 5.07.0106 that could allow escalation of privilege.

Severity

7.3 (High)


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

CWE

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

Assigner

lenovo mitre root

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
Lenovo	System Update	Affected: unspecified , < 5.07.0106 (custom)

Date Public

2020-09-15 00:00

Credits

Lenovo thanks Security Advisor, Anders Kusk, Improsec ApS for reporting this issue.

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:56:28.350Z",
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              "x_transferred"
            ],
            "url": "https://support.lenovo.com/us/en/product_security/LEN-42150"
          }
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        "title": "CVE Program Container"
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    "cna": {
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            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
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            "scope": "UNCHANGED",
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      ],
      "solutions": [
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      },
      "x_generator": {
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      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@lenovo.com",
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  },
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  "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.