Vulnerability-Lookup

CNVD-2018-14080

Vulnerability from cnvd - Published: 2018-07-27

Title

Cisco Nexus 9000 Series Fabric Switches DHCPv6功能拒绝服务漏洞

Description

Cisco Nexus 9000 Series Fabric Switches是美国思科（Cisco）公司的一款9000系列交换机产品。 Cisco Nexus 9000 Series Fabric Switches（处于ACI模式）13.0(1k)版本中的DHCPv6功能存在拒绝服务漏洞，该漏洞源于程序在目标设备的接口上接收DHCPv6数据包时未能正确的管理内存。远程攻击者可通过发送大量的恶意的DHCPv6数据包利用该漏洞造成拒绝服务。

Severity

高

Patch Name

Cisco Nexus 9000 Series Fabric Switches DHCPv6功能拒绝服务漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-20180718-nexus-9000-dos

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-0372

Impacted products

Name
Cisco Nexus 9000 Series Fabric Switches 13.0(1k)

Show details on source website

JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-0372",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0372"
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  "discovererName": "Unknow",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-14080",
  "openTime": "2018-07-27",
  "patchDescription": "Cisco Nexus 9000 Series Fabric Switches\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e9000\u7cfb\u5217\u4ea4\u6362\u673a\u4ea7\u54c1\u3002\r\n\r\nCisco Nexus 9000 Series Fabric Switches\uff08\u5904\u4e8eACI\u6a21\u5f0f\uff0913.0(1k)\u7248\u672c\u4e2d\u7684DHCPv6\u529f\u80fd\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u76ee\u6807\u8bbe\u5907\u7684\u63a5\u53e3\u4e0a\u63a5\u6536DHCPv6\u6570\u636e\u5305\u65f6\u672a\u80fd\u6b63\u786e\u7684\u7ba1\u7406\u5185\u5b58\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u5927\u91cf\u7684\u6076\u610f\u7684DHCPv6\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 Nexus 9000 Series Fabric Switches DHCPv6\u529f\u80fd\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Nexus 9000 Series Fabric Switches 13.0(1k)"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-0372",
  "serverity": "\u9ad8",
  "submitTime": "2018-07-26",
  "title": "Cisco Nexus 9000 Series Fabric Switches DHCPv6\u529f\u80fd\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-0372 (GCVE-0-2018-0372)

Vulnerability from cvelistv5 – Published: 2018-07-18 23:00 – Updated: 2024-11-29 14:51

Summary

A vulnerability in the DHCPv6 feature of the Cisco Nexus 9000 Series Fabric Switches in Application-Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause the device to run low on system memory, which could result in a Denial of Service (DoS) condition on an affected system. The vulnerability is due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. An attacker could exploit this vulnerability by sending a high number of malicious DHCPv6 packets to be processed by an affected device. A successful exploit could allow the attacker to cause the system to run low on memory, which could cause an eventual reboot of an affected device. The vulnerability only applies to IPv6 protocol packets and not for IPv4 protocol packets. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI Mode running software version 13.0(1k). The vulnerability can only be exploited when unicast routing is enabled on the Bridge Domain (BD). DHCP and DHCP relay do not have to be configured for the vulnerability to be exploited. Cisco Bug IDs: CSCvg38918.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-29 14:43 UTC

CWE

CWE-400

Assigner

cisco mitre root Scorecard

References

2 references

URL	Tags
https://tools.cisco.com/security/center/content/C…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1041348	vdb-entryx_refsource_SECTRACK

Impacted products

1 product

Vendor	Product	Version
n/a	Cisco Nexus 9000 Series unknown	Affected: Cisco Nexus 9000 Series unknown

Date Public

2018-07-18 00:00

Show details on NVD website

JSON

To clipboard

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        ],
        "title": "CVE Program Container"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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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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.

Action not permitted

CNVD-2018-14080

CVE-2018-0372 (GCVE-0-2018-0372)

Tags

Sightings

Nomenclature

Related by attack behaviour