cnvd - cnvd-2021-39054

cnvd-2021-39054

Vulnerability from cnvd

Title: MQTT资源管理错误漏洞

Description:

MQTT（Message Queuing Telemetry Transport,消息队列遥测传输）是一个ISO 标准（ISO/IEC PRF 20922）下基于发布 (Publish)/订阅 (Subscribe)范式的消息协议，它工作在TCP/IP协议族上，是为硬件性能低下的远程设备以及网络状况不好的情况下而设计的发布/订阅型消息协议。

MQTT protocol 3.1.1版本中存在安全漏洞，该漏洞源于协议要求设置超时的时间是客户端指定的1.5倍。远程攻击者可利用该漏洞造成拒绝服务（无法建立新连接）。

Severity: 中

Formal description:

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： http://mqtt.org/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-13849

Impacted products

Name
MQTT MQTT 3.1.1

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-13849"
    }
  },
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  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttp://mqtt.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-39054",
  "openTime": "2021-06-03",
  "products": {
    "product": "MQTT MQTT 3.1.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-13849",
  "serverity": "\u4e2d",
  "submitTime": "2020-06-05",
  "title": "MQTT\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-13849 (GCVE-0-2020-13849)

Vulnerability from cvelistv5

Published

2020-06-04 20:16

Modified

2024-08-04 12:32

Severity ?

CWE

Summary

The MQTT protocol 3.1.1 requires a server to set a timeout value of 1.5 times the Keep-Alive value specified by a client, which allows remote attackers to cause a denial of service (loss of the ability to establish new connections), as demonstrated by SlowITe.

References

▼	URL	Tags
	https://www.mdpi.com/1424-8220/20/10/2932	x_refsource_MISC
	https://doi.org/10.3390/s20102932	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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