Vulnerability-Lookup

CNVD-2020-29594

Vulnerability from cnvd - Published: 2020-05-24

Title

Cisco Prime Network Registrar输入验证错误漏洞

Description

Cisco Prime Network Registrar（CPNR）是美国思科（Cisco）公司的一款网络注册器产品。该产品提供了动态主机配置协议（DHCP）、域名系统（DNS）和IP地址管理（IPAM）等服务。 Cisco Prime Network Registrar存在输入验证错误漏洞，该漏洞源于程序未对接收的DHCP流量进行充分的输入验证。攻击者可借助特制的DHCP请求利用该漏洞导致拒绝服务。

Severity

高

Patch Name

Cisco Prime Network Registrar输入验证错误漏洞的补丁

Patch Description

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-cpnr-dhcp-dos-BkEZfhLP

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3272

Impacted products

Name
Cisco Prime Network Registrar

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3272",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3272"
    }
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  "description": "Cisco Prime Network Registrar\uff08CPNR\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7f51\u7edc\u6ce8\u518c\u5668\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u63d0\u4f9b\u4e86\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae\uff08DHCP\uff09\u3001\u57df\u540d\u7cfb\u7edf\uff08DNS\uff09\u548cIP\u5730\u5740\u7ba1\u7406\uff08IPAM\uff09\u7b49\u670d\u52a1\u3002\n\nCisco Prime Network Registrar\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9\u63a5\u6536\u7684DHCP\u6d41\u91cf\u8fdb\u884c\u5145\u5206\u7684\u8f93\u5165\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684DHCP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-29594",
  "openTime": "2020-05-24",
  "patchDescription": "Cisco Prime Network Registrar\uff08CPNR\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7f51\u7edc\u6ce8\u518c\u5668\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u63d0\u4f9b\u4e86\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae\uff08DHCP\uff09\u3001\u57df\u540d\u7cfb\u7edf\uff08DNS\uff09\u548cIP\u5730\u5740\u7ba1\u7406\uff08IPAM\uff09\u7b49\u670d\u52a1\u3002\r\n\r\nCisco Prime Network Registrar\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9\u63a5\u6536\u7684DHCP\u6d41\u91cf\u8fdb\u884c\u5145\u5206\u7684\u8f93\u5165\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684DHCP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\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 Prime Network Registrar\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Prime Network Registrar"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3272",
  "serverity": "\u9ad8",
  "submitTime": "2020-05-21",
  "title": "Cisco Prime Network Registrar\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-3272 (GCVE-0-2020-3272)

Vulnerability from cvelistv5 – Published: 2020-05-22 05:15 – Updated: 2024-11-15 17:21

Title

Cisco Prime Network Registrar DHCP Denial of Service Vulnerability

Summary

A vulnerability in the DHCP server of Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of incoming DHCP traffic. An attacker could exploit this vulnerability by sending a crafted DHCP request to an affected device. A successful exploit could allow the attacker to cause a restart of the DHCP server process, causing a DoS condition.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-15 16:21 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 Prime Network Registrar	Affected: n/a

Date Public

2020-05-20 00:00

Show details on NVD website

JSON

To clipboard

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            "name": "20200520 Cisco Prime Network Registrar DHCP Denial of Service Vulnerability",
            "tags": [
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              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cpnr-dhcp-dos-BkEZfhLP"
          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
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                "id": "CVE-2020-3272",
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                  {
                    "Automatable": "yes"
                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
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                "version": "2.0.3"
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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      "metrics": [
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            "attackVector": "NETWORK",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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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.
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.

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CNVD-2020-29594

CVE-2020-3272 (GCVE-0-2020-3272)

Tags

Sightings

Nomenclature

Related by attack behaviour