Vulnerability-Lookup

CNVD-2020-38216

Vulnerability from cnvd - Published: 2020-07-13

Title

Cypress Semiconductor PSoC Creator BLE安全特征问题漏洞

Description

Cypress Semiconductor PSoC Creator BLE是美国赛普拉斯半导体（Cypress Semiconductor）公司的一款集成了蓝牙低功耗（BLE）的可编程嵌入式系统级芯片。 Cypress Semiconductor PSoC Creator 4.2 BLE 3.64之前版本中存在安全特征问题漏洞，该漏洞源于BLE的实现生成了64位而不是128位的随机数。攻击者可利用该漏洞在BLE配对期间实施中间人攻击。

Severity

中

Patch Name

Cypress Semiconductor PSoC Creator BLE安全特征问题漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.cypress.com/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-11957

Impacted products

Name
Cypress Semiconductor PSoC Creator <4.2 BLE 3.64

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-11957"
    }
  },
  "description": "Cypress Semiconductor PSoC Creator BLE\u662f\u7f8e\u56fd\u8d5b\u666e\u62c9\u65af\u534a\u5bfc\u4f53\uff08Cypress Semiconductor\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u96c6\u6210\u4e86\u84dd\u7259\u4f4e\u529f\u8017\uff08BLE\uff09\u7684\u53ef\u7f16\u7a0b\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7ea7\u82af\u7247\u3002\n\nCypress Semiconductor PSoC Creator 4.2 BLE 3.64\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u7279\u5f81\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eBLE\u7684\u5b9e\u73b0\u751f\u6210\u4e8664\u4f4d\u800c\u4e0d\u662f128\u4f4d\u7684\u968f\u673a\u6570\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728BLE\u914d\u5bf9\u671f\u95f4\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.cypress.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-38216",
  "openTime": "2020-07-13",
  "patchDescription": "Cypress Semiconductor PSoC Creator BLE\u662f\u7f8e\u56fd\u8d5b\u666e\u62c9\u65af\u534a\u5bfc\u4f53\uff08Cypress Semiconductor\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u96c6\u6210\u4e86\u84dd\u7259\u4f4e\u529f\u8017\uff08BLE\uff09\u7684\u53ef\u7f16\u7a0b\u5d4c\u5165\u5f0f\u7cfb\u7edf\u7ea7\u82af\u7247\u3002\r\n\r\nCypress Semiconductor PSoC Creator 4.2 BLE 3.64\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u7279\u5f81\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eBLE\u7684\u5b9e\u73b0\u751f\u6210\u4e8664\u4f4d\u800c\u4e0d\u662f128\u4f4d\u7684\u968f\u673a\u6570\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728BLE\u914d\u5bf9\u671f\u95f4\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\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": "Cypress Semiconductor PSoC Creator BLE\u5b89\u5168\u7279\u5f81\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cypress Semiconductor PSoC Creator \u003c4.2 BLE 3.64"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-11957",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-10",
  "title": "Cypress Semiconductor PSoC Creator BLE\u5b89\u5168\u7279\u5f81\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-11957 (GCVE-0-2020-11957)

Vulnerability from cvelistv5 – Published: 2020-06-09 18:26 – Updated: 2024-08-04 11:42

Summary

The Bluetooth Low Energy implementation in Cypress PSoC Creator BLE 4.2 component versions before 3.64 generates a random number (Pairing Random) with significantly less entropy than the specified 128 bits during BLE pairing. This is the case for both authenticated and unauthenticated pairing with both LE Secure Connections as well as LE Legacy Pairing. A predictable or brute-forceable random number allows an attacker (in radio range) to perform a MITM attack during BLE pairing.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://www.cypress.com/file/504466/download	x_refsource_CONFIRM

Date Public

2020-05-04 00:00

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T11:42:00.828Z",
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              "x_transferred"
            ],
            "url": "https://www.cypress.com/file/504466/download"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
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      ],
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      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-06-09T18:26:54.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.cypress.com/file/504466/download"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-11957",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
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                          {
                            "version_value": "n/a"
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                      }
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    "dateReserved": "2020-04-20T00:00:00.000Z",
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    "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-2020-38216

CVE-2020-11957 (GCVE-0-2020-11957)

Tags

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Nomenclature

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