Vulnerability-Lookup

CNVD-2021-43371

Vulnerability from cnvd - Published: 2021-06-18

Title

SonicWall SonicOS缓冲区溢出漏洞（CNVD-2021-43371）

Description

Sonicwall SonicWall SonicOS是美国SonicWall（Sonicwall）公司的一套专为SonicWall防火墙设备设计的操作系统。 SonicOS存在安全漏洞，远程攻击者可利用该漏洞通过发送一个特殊设计的请求来导致拒绝服务(DoS)。

Severity

高

Patch Name

SonicWall SonicOS缓冲区溢出漏洞（CNVD-2021-43371）的补丁

Patch Description

Sonicwall SonicWall SonicOS是美国SonicWall（Sonicwall）公司的一套专为SonicWall防火墙设备设计的操作系统。 SonicOS存在安全漏洞，远程攻击者可利用该漏洞通过发送一个特殊设计的请求来导致拒绝服务(DoS)。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016

Reference

https://www.cybersecurity-help.cz/vdb/SB2021061501

Impacted products

Name
SonicWall SonicOS

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20027"
    }
  },
  "description": "Sonicwall SonicWall SonicOS\u662f\u7f8e\u56fdSonicWall\uff08Sonicwall\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e13\u4e3aSonicWall\u9632\u706b\u5899\u8bbe\u5907\u8bbe\u8ba1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nSonicOS\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u53d1\u9001\u4e00\u4e2a\u7279\u6b8a\u8bbe\u8ba1\u7684\u8bf7\u6c42\u6765\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1(DoS)\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43371",
  "openTime": "2021-06-18",
  "patchDescription": "Sonicwall SonicWall SonicOS\u662f\u7f8e\u56fdSonicWall\uff08Sonicwall\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e13\u4e3aSonicWall\u9632\u706b\u5899\u8bbe\u5907\u8bbe\u8ba1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nSonicOS\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u53d1\u9001\u4e00\u4e2a\u7279\u6b8a\u8bbe\u8ba1\u7684\u8bf7\u6c42\u6765\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1(DoS)\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": "SonicWall SonicOS\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-43371\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "SonicWall SonicOS"
  },
  "referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021061501",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-17",
  "title": "SonicWall SonicOS\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-43371\uff09"
}

CVE-2021-20027 (GCVE-0-2021-20027)

Vulnerability from cvelistv5 – Published: 2021-06-14 22:30 – Updated: 2024-08-03 17:30

Summary

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted request. This vulnerability affects SonicOS Gen5, Gen6, Gen7 platforms, and SonicOSv virtual firewalls.

Severity

No CVSS data available.

CWE

CWE-120 - Buffer Copy without Checking Size of Input

Assigner

sonicwall mitre root

References

1 reference

URL	Tags
https://psirt.global.sonicwall.com/vuln-detail/SN…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
SonicWall	SonicOS	Affected: SonicOS 5.9.1.13 and earlier Affected: SonicOSv 6.5.4.4 and earlier Affected: SonicOS 6.0.5.3 and earlier Affected: SonicOS 6.5.1.12 and earlier Affected: SonicOS 6.5.4.7 and earlier Affected: SonicOS 7.0.1-R1219 and earlier Affected: SonicOS 7.0.1-R514 and earlier Affected: SonicOS 7.0.1-R1262 and earlier

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T17:30:07.579Z",
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            "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016"
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        ],
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              "status": "affected",
              "version": "SonicOSv 6.5.4.4 and earlier"
            },
            {
              "status": "affected",
              "version": "SonicOS 6.0.5.3 and earlier"
            },
            {
              "status": "affected",
              "version": "SonicOS 6.5.1.12 and earlier"
            },
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            },
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            },
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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.

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.