Vulnerability-Lookup

CNVD-2020-70878

Vulnerability from cnvd - Published: 2020-12-11

Title

Cisco IOS和IOS XE输入验证错误漏洞（CNVD-2020-70878）

Description

Cisco IOS和IOS XE都是美国思科（Cisco）公司的产品。CLI是其中的一个命令行界面。 Cisco Catalyst 9800系列无线控制器的Cisco IOS XE软件的控制和供应无线接入点（CAPWAP）协议存在安全漏洞，该漏洞源于CAPWAP数据包验证不足所致。攻击者可利用该漏洞导致受影响的设备崩溃并重新加载，从而导致受影响的设备上出现DoS状况。

Severity

中

Patch Name

Cisco IOS和IOS XE输入验证错误漏洞（CNVD-2020-70878）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-capwap-dos-TPdNTdyq

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3494

Impacted products

Name
Cisco Cisco Catalyst 9800

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3494",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3494"
    }
  },
  "description": "Cisco IOS\u548cIOS XE\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002CLI\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u547d\u4ee4\u884c\u754c\u9762\u3002\n\nCisco Catalyst 9800\u7cfb\u5217\u65e0\u7ebf\u63a7\u5236\u5668\u7684Cisco IOS XE\u8f6f\u4ef6\u7684\u63a7\u5236\u548c\u4f9b\u5e94\u65e0\u7ebf\u63a5\u5165\u70b9\uff08CAPWAP\uff09\u534f\u8bae\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eCAPWAP\u6570\u636e\u5305\u9a8c\u8bc1\u4e0d\u8db3\u6240\u81f4\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u5d29\u6e83\u5e76\u91cd\u65b0\u52a0\u8f7d\uff0c\u4ece\u800c\u5bfc\u81f4\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u4e0a\u51fa\u73b0DoS\u72b6\u51b5\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capwap-dos-TPdNTdyq",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-70878",
  "openTime": "2020-12-11",
  "patchDescription": "Cisco IOS\u548cIOS XE\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002CLI\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u547d\u4ee4\u884c\u754c\u9762\u3002\r\n\r\nCisco Catalyst 9800\u7cfb\u5217\u65e0\u7ebf\u63a7\u5236\u5668\u7684Cisco IOS XE\u8f6f\u4ef6\u7684\u63a7\u5236\u548c\u4f9b\u5e94\u65e0\u7ebf\u63a5\u5165\u70b9\uff08CAPWAP\uff09\u534f\u8bae\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eCAPWAP\u6570\u636e\u5305\u9a8c\u8bc1\u4e0d\u8db3\u6240\u81f4\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u5d29\u6e83\u5e76\u91cd\u65b0\u52a0\u8f7d\uff0c\u4ece\u800c\u5bfc\u81f4\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u4e0a\u51fa\u73b0DoS\u72b6\u51b5\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 IOS\u548cIOS XE\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-70878\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Cisco Catalyst 9800"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3494",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-29",
  "title": "Cisco IOS\u548cIOS XE\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-70878\uff09"
}

CVE-2020-3494 (GCVE-0-2020-3494)

Vulnerability from cvelistv5 – Published: 2020-09-24 17:52 – Updated: 2024-11-13 17:59

Title

Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerabilities

Summary

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition of an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit these vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.

Severity

7.4 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-13 17:23 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	Affected: n/a

Date Public

2020-09-24 00:00

Show details on NVD website

JSON

To clipboard

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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-capwap-dos-TPdNTdyq"
          }
        ],
        "title": "CVE Program Container"
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        "metrics": [
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    ],
    "cna": {
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          "versions": [
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      ],
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            "privilegesRequired": "NONE",
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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-2020-70878

CVE-2020-3494 (GCVE-0-2020-3494)

Tags

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Nomenclature

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