Vulnerability-Lookup

CNVD-2021-14793

Vulnerability from cnvd - Published: 2021-03-07

Title

Cisco Nexus 9000系列交换机拒绝服务漏洞（CNVD-2021-14793）

Description

Cisco Nexus 9000系列交换机是专为数据中心设计的模块化和固定端口网络交换机。 Cisco Nexus 9000 Series Fabric Switches存在安全漏洞，该漏洞允许未经身份验证的远程攻击者导致路由进程崩溃。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

Cisco Nexus 9000系列交换机拒绝服务漏洞（CNVD-2021-14793）的补丁

Patch Description

Cisco Nexus 9000系列交换机是专为数据中心设计的模块化和固定端口网络交换机。 Cisco Nexus 9000 Series Fabric Switches存在安全漏洞，该漏洞允许未经身份验证的远程攻击者导致路由进程崩溃。目前没有详细的漏洞细节提供。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-n9kaci-bgp-De9dPKSK

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1230

Impacted products

Name
Cisco Nexus 9000

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1230",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1230"
    }
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  "number": "CNVD-2021-14793",
  "openTime": "2021-03-07",
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  "products": {
    "product": "Cisco Nexus 9000"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1230",
  "serverity": "\u9ad8",
  "submitTime": "2021-02-25",
  "title": "Cisco Nexus 9000\u7cfb\u5217\u4ea4\u6362\u673a\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-14793\uff09"
}

CVE-2021-1230 (GCVE-0-2021-1230)

Vulnerability from cvelistv5 – Published: 2021-02-24 19:30 – Updated: 2024-11-08 23:39

Title

Cisco Nexus 9000 Series Fabric Switches ACI Mode BGP Route Installation Denial of Service Vulnerability

Summary

A vulnerability with the Border Gateway Protocol (BGP) for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a routing process to crash, which could lead to a denial of service (DoS) condition. This vulnerability is due to an issue with the installation of routes upon receipt of a BGP update. An attacker could exploit this vulnerability by sending a crafted BGP update to an affected device. A successful exploit could allow the attacker to cause the routing process to crash, which could cause the device to reload. This vulnerability applies to both Internal BGP (IBGP) and External BGP (EBGP). Note: The Cisco implementation of BGP accepts incoming BGP traffic from explicitly configured peers only. To exploit this vulnerability, an attacker would need to send a specific BGP update message over an established TCP connection that appears to come from a trusted BGP peer.

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:03 UTC

CWE

CWE-233

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 NX-OS System Software in ACI Mode	Affected: n/a

Date Public

2021-02-24 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.

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.