cnvd - cnvd-2021-43455

cnvd-2021-43455

Vulnerability from cnvd

Title: Cisco Catalyst 9200系列交换机拒绝服务漏洞

Description:

Cisco Catalyst 9200是Cisco推出的入门级可堆叠企业网络交换机系列。

Cisco Catalyst 9200系列交换机的Polaris内核存在拒绝服务漏洞，攻击者可通过将巨型帧或大于配置的MTU大小的帧发送到设备的管理界面利用该漏洞导致设备完全崩溃。

Severity: 高

Patch Name: Cisco Catalyst 9200系列交换机拒绝服务漏洞的补丁

Patch Description:

Cisco Catalyst 9200是Cisco推出的入门级可堆叠企业网络交换机系列。

Cisco Catalyst 9200系列交换机的Polaris内核存在拒绝服务漏洞，攻击者可通过将巨型帧或大于配置的MTU大小的帧发送到设备的管理界面利用该漏洞导致设备完全崩溃。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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-JP-DOS-g5FfGm8y

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-JP-DOS-g5FfGm8y

Impacted products

Name
Cisco Catalyst 9200系列交换机 null

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3527",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3527"
    }
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  "description": "Cisco Catalyst 9200\u662fCisco\u63a8\u51fa\u7684\u5165\u95e8\u7ea7\u53ef\u5806\u53e0\u4f01\u4e1a\u7f51\u7edc\u4ea4\u6362\u673a\u7cfb\u5217\u3002\n\nCisco Catalyst 9200\u7cfb\u5217\u4ea4\u6362\u673a\u7684Polaris\u5185\u6838\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u5de8\u578b\u5e27\u6216\u5927\u4e8e\u914d\u7f6e\u7684MTU\u5927\u5c0f\u7684\u5e27\u53d1\u9001\u5230\u8bbe\u5907\u7684\u7ba1\u7406\u754c\u9762\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u5b8c\u5168\u5d29\u6e83\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-JP-DOS-g5FfGm8y",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43455",
  "openTime": "2021-06-20",
  "patchDescription": "Cisco Catalyst 9200\u662fCisco\u63a8\u51fa\u7684\u5165\u95e8\u7ea7\u53ef\u5806\u53e0\u4f01\u4e1a\u7f51\u7edc\u4ea4\u6362\u673a\u7cfb\u5217\u3002\r\n\r\nCisco Catalyst 9200\u7cfb\u5217\u4ea4\u6362\u673a\u7684Polaris\u5185\u6838\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u5de8\u578b\u5e27\u6216\u5927\u4e8e\u914d\u7f6e\u7684MTU\u5927\u5c0f\u7684\u5e27\u53d1\u9001\u5230\u8bbe\u5907\u7684\u7ba1\u7406\u754c\u9762\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u5b8c\u5168\u5d29\u6e83\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": "Cisco Catalyst 9200\u7cfb\u5217\u4ea4\u6362\u673a\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Catalyst 9200\u7cfb\u5217\u4ea4\u6362\u673a null"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-JP-DOS-g5FfGm8y",
  "serverity": "\u9ad8",
  "submitTime": "2020-09-25",
  "title": "Cisco Catalyst 9200\u7cfb\u5217\u4ea4\u6362\u673a\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-3527 (GCVE-0-2020-3527)

Vulnerability from cvelistv5

Published

2020-09-24 17:51

Modified

2024-11-13 18:01

Severity ?

8.6 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-20

Summary

A vulnerability in the Polaris kernel of Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to crash the device. The vulnerability is due to insufficient packet size validation. An attacker could exploit this vulnerability by sending jumbo frames or frames larger than the configured MTU size to the management interface of this device. A successful exploit could allow the attacker to crash the device fully before an automatic recovery.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-JP-DOS-g5FfGm8y	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XE Software	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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