Vulnerability-Lookup

CNVD-2020-31967

Vulnerability from cnvd - Published: 2020-06-09

Title

Cisco Catalyst 9800 Series Wireless Controllers IOS XE输入验证错误漏洞

Description

Cisco IOS XE是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco Catalyst 9800 Series Wireless Controllers中的IOS XE的Flexible NetFlow 9版本数据包处理器存在输入验证错误漏洞。攻击者可通过将格式错误的Flexible NetFlow 9版本数据包发送到受影响设备的CAPWAP数据端口利用该漏洞造成无限循环，导致进程崩溃，进而导致设备重新加载。

Severity

高

Patch Name

Cisco Catalyst 9800 Series Wireless Controllers IOS XE输入验证错误漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3221

Impacted products

Name
Cisco Catalyst 9800 Series Wireless Controllers

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-3221"
    }
  },
  "description": "Cisco IOS XE\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco Catalyst 9800 Series Wireless Controllers\u4e2d\u7684IOS XE\u7684Flexible NetFlow 9\u7248\u672c\u6570\u636e\u5305\u5904\u7406\u5668\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u683c\u5f0f\u9519\u8bef\u7684Flexible NetFlow 9\u7248\u672c\u6570\u636e\u5305\u53d1\u9001\u5230\u53d7\u5f71\u54cd\u8bbe\u5907\u7684CAPWAP\u6570\u636e\u7aef\u53e3\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\uff0c\u5bfc\u81f4\u8fdb\u7a0b\u5d29\u6e83\uff0c\u8fdb\u800c\u5bfc\u81f4\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\u3002",
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  "number": "CNVD-2020-31967",
  "openTime": "2020-06-09",
  "patchDescription": "Cisco IOS XE\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco Catalyst 9800 Series Wireless Controllers\u4e2d\u7684IOS XE\u7684Flexible NetFlow 9\u7248\u672c\u6570\u636e\u5305\u5904\u7406\u5668\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u683c\u5f0f\u9519\u8bef\u7684Flexible NetFlow 9\u7248\u672c\u6570\u636e\u5305\u53d1\u9001\u5230\u53d7\u5f71\u54cd\u8bbe\u5907\u7684CAPWAP\u6570\u636e\u7aef\u53e3\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u65e0\u9650\u5faa\u73af\uff0c\u5bfc\u81f4\u8fdb\u7a0b\u5d29\u6e83\uff0c\u8fdb\u800c\u5bfc\u81f4\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\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 9800 Series Wireless Controllers IOS XE\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Catalyst 9800 Series Wireless Controllers"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3221",
  "serverity": "\u9ad8",
  "submitTime": "2020-06-04",
  "title": "Cisco Catalyst 9800 Series Wireless Controllers IOS XE\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-3221 (GCVE-0-2020-3221)

Vulnerability from cvelistv5 – Published: 2020-06-03 17:41 – Updated: 2024-11-15 17:15

Title

Cisco IOS XE Software Flexible NetFlow Version 9 Denial of Service Vulnerability

Summary

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by sending a malformed Flexible NetFlow Version 9 packet to the Control and Provisioning of Wireless Access Points (CAPWAP) data port of an affected device. An exploit could allow the attacker to trigger an infinite loop, resulting in a process crash that would cause a reload of the device.

Severity

8.6 (High)


                        
                          CVSS:3.0/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 2024-11-15 16:21 UTC

CWE

CWE-20

Assigner

cisco mitre root Scorecard

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 IOS XE Software 16.10.1	Affected: n/a

Date Public

2020-06-03 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:30:57.790Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20200603 Cisco IOS XE Software Flexible NetFlow Version 9 Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-3221",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-15T16:21:17.324756Z",
                "version": "2.0.3"
              },
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-15T17:15:52.183Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS XE Software 16.10.1",
          "vendor": "Cisco",
          "versions": [
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              "status": "affected",
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            }
          ]
        }
      ],
      "datePublic": "2020-06-03T00:00:00.000Z",
      "descriptions": [
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        }
      ],
      "exploits": [
        {
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          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
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        "shortName": "cisco"
      },
      "references": [
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          "name": "20200603 Cisco IOS XE Software Flexible NetFlow Version 9 Denial of Service Vulnerability",
          "tags": [
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            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u"
        }
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        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS XE Software Flexible NetFlow Version 9 Denial of Service Vulnerability",
      "x_legacyV4Record": {
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          "DATE_PUBLIC": "2020-06-03T16:00:00",
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          "STATE": "PUBLIC",
          "TITLE": "Cisco IOS XE Software Flexible NetFlow Version 9 Denial of Service Vulnerability"
        },
        "affects": {
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        "impact": {
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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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CNVD-2020-31967

CVE-2020-3221 (GCVE-0-2020-3221)

Tags

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Nomenclature

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