Vulnerability-Lookup

CNVD-2020-48989

Vulnerability from cnvd - Published: 2020-08-28

Title

Cisco Small Business Smart and Managed Switches拒绝服务漏洞

Description

Cisco Small Business Smart and Managed Switches是一款思科交换机设备。 Cisco Small Business Smart and Managed Switches处理IPV6通信存在拒绝服务漏洞，远程攻击者可通过发送特制的IPv6数据包利用该漏洞造成拒绝服务。

Severity

中

Patch Name

Cisco Small Business Smart and Managed Switches拒绝服务漏洞的补丁

Patch Description

Cisco Small Business Smart and Managed Switches是一款思科交换机设备。 Cisco Small Business Smart and Managed Switches处理IPV6通信存在拒绝服务漏洞，远程攻击者可通过发送特制的IPv6数据包利用该漏洞造成拒绝服务。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-sbss-ipv6-dos-tsgqbffW

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-tsgqbffW

Impacted products

Name
Cisco Small Business Smart and Managed Switches

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3496",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3496"
    }
  },
  "description": "Cisco Small Business Smart and Managed Switches\u662f\u4e00\u6b3e\u601d\u79d1\u4ea4\u6362\u673a\u8bbe\u5907\u3002\n\nCisco Small Business Smart and Managed Switches\u5904\u7406IPV6\u901a\u4fe1\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684IPv6\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
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  "number": "CNVD-2020-48989",
  "openTime": "2020-08-28",
  "patchDescription": "Cisco Small Business Smart and Managed Switches\u662f\u4e00\u6b3e\u601d\u79d1\u4ea4\u6362\u673a\u8bbe\u5907\u3002\r\n\r\nCisco Small Business Smart and Managed Switches\u5904\u7406IPV6\u901a\u4fe1\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684IPv6\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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 Small Business Smart and Managed Switches\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Small Business Smart and Managed Switches"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbss-ipv6-dos-tsgqbffW",
  "serverity": "\u4e2d",
  "submitTime": "2020-08-24",
  "title": "Cisco Small Business Smart and Managed Switches\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-3496 (GCVE-0-2020-3496)

Vulnerability from cvelistv5 – Published: 2020-08-26 16:15 – Updated: 2024-11-13 18:12

Title

Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability

Summary

A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.

Severity

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-13 17:13 UTC

CWE

CWE-20

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Small Business 250 Series Smart Switches Software	Affected: n/a

Date Public

2020-08-19 00:00

Show details on NVD website

JSON

To clipboard

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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.
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CNVD-2020-48989

CVE-2020-3496 (GCVE-0-2020-3496)

Tags

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Nomenclature

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