Vulnerability-Lookup

CNVD-2021-27363

Vulnerability from cnvd - Published: 2021-04-12

Title

Eclipse Mosquitto空指针解引用漏洞

Description

Eclipse Mosquitto是实现3.1和3.1.1版MQTT协议的开源（EPL/EDL许可）消息代理。 Eclipse Mosquitto 2.0.0至2.0.9版本存在空指针解引用漏洞。攻击者可通过与MQTT v5连接的认证客户端向代理发送特制CONNACK消息利用该漏洞导致空指针解引用。

Severity

中

Patch Name

Eclipse Mosquitto空指针解引用漏洞的补丁

Patch Description

Eclipse Mosquitto是实现3.1和3.1.1版MQTT协议的开源（EPL/EDL许可）消息代理。 Eclipse Mosquitto 2.0.0至2.0.9版本存在空指针解引用漏洞。攻击者可通过与MQTT v5连接的认证客户端向代理发送特制CONNACK消息利用该漏洞导致空指针解引用。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://bugs.eclipse.org/bugs/show_bug.cgi?id=572608

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-28166

Impacted products

Name
Eclipse Mosquitto >=2.0.0，<=2.0.9

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-28166",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-28166"
    }
  },
  "description": "Eclipse Mosquitto\u662f\u5b9e\u73b03.1\u548c3.1.1\u7248MQTT\u534f\u8bae\u7684\u5f00\u6e90\uff08EPL/EDL\u8bb8\u53ef\uff09\u6d88\u606f\u4ee3\u7406\u3002\n\nEclipse Mosquitto 2.0.0\u81f32.0.9\u7248\u672c\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4e0eMQTT v5\u8fde\u63a5\u7684\u8ba4\u8bc1\u5ba2\u6237\u7aef\u5411\u4ee3\u7406\u53d1\u9001\u7279\u5236CONNACK\u6d88\u606f\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1ahttps://bugs.eclipse.org/bugs/show_bug.cgi?id=572608",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-27363",
  "openTime": "2021-04-12",
  "patchDescription": "Eclipse Mosquitto\u662f\u5b9e\u73b03.1\u548c3.1.1\u7248MQTT\u534f\u8bae\u7684\u5f00\u6e90\uff08EPL/EDL\u8bb8\u53ef\uff09\u6d88\u606f\u4ee3\u7406\u3002\r\n\r\nEclipse Mosquitto 2.0.0\u81f32.0.9\u7248\u672c\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4e0eMQTT v5\u8fde\u63a5\u7684\u8ba4\u8bc1\u5ba2\u6237\u7aef\u5411\u4ee3\u7406\u53d1\u9001\u7279\u5236CONNACK\u6d88\u606f\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7a7a\u6307\u9488\u89e3\u5f15\u7528\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": "Eclipse Mosquitto\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Eclipse Mosquitto \u003e=2.0.0\uff0c\u003c=2.0.9"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-28166",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-08",
  "title": "Eclipse Mosquitto\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2021-28166 (GCVE-0-2021-28166)

Vulnerability from cvelistv5 – Published: 2021-04-07 18:50 – Updated: 2024-08-03 21:40

Summary

In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:F/RL:O/RC:C

CWE

CWE-476 - NULL Pointer Dereference

Assigner

eclipse mitre root

References

1 reference

URL	Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=572608	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
The Eclipse Foundation	Eclipse Mosquitto	Affected: 2.0 , < unspecified (custom) Affected: unspecified , ≤ 2.0.9 (custom)

Show details on NVD website

JSON

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    ],
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          "vendor": "The Eclipse Foundation",
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "FUNCTIONAL",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "remediationLevel": "OFFICIAL_FIX",
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            "scope": "UNCHANGED",
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            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2021-27363

CVE-2021-28166 (GCVE-0-2021-28166)

Tags

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Nomenclature

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