Vulnerability-Lookup

CNVD-2020-33645

Vulnerability from cnvd - Published: 2020-06-19

Title

Cisco Wireless LAN Controller Software缓冲区溢出漏洞

Description

Cisco Wireless LAN Controller（WLC）Software是美国思科（Cisco）公司的一套用于配置和管理WLC（无线局域网控制器）的软件。 Cisco WLC Software中的802.11 Generic Advertisement Service (GAS)帧处理功能存在缓冲区溢出漏洞，该漏洞源于程序未能对802.11 GAS帧进行充分的验证。远程攻击者可通过向无线接入点发送特制的802.11 GAS帧利用该漏洞造成设备重新加载，导致拒绝服务。

Severity

中

Patch Name

Cisco Wireless LAN Controller Software缓冲区溢出漏洞的补丁

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-wlc-gas-dos-8FsE3AWH

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3273

Impacted products

Name
Cisco Wireless LAN Controller

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-3273"
    }
  },
  "description": "Cisco Wireless LAN Controller\uff08WLC\uff09Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u7528\u4e8e\u914d\u7f6e\u548c\u7ba1\u7406WLC\uff08\u65e0\u7ebf\u5c40\u57df\u7f51\u63a7\u5236\u5668\uff09\u7684\u8f6f\u4ef6\u3002\n\nCisco WLC Software\u4e2d\u7684802.11 Generic Advertisement Service (GAS)\u5e27\u5904\u7406\u529f\u80fd\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9802.11 GAS\u5e27\u8fdb\u884c\u5145\u5206\u7684\u9a8c\u8bc1\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u65e0\u7ebf\u63a5\u5165\u70b9\u53d1\u9001\u7279\u5236\u7684802.11 GAS\u5e27\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
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  "number": "CNVD-2020-33645",
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  "products": {
    "product": "Cisco Wireless LAN Controller"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3273",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-16",
  "title": "Cisco Wireless LAN Controller Software\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-3273 (GCVE-0-2020-3273)

Vulnerability from cvelistv5 – Published: 2020-04-15 20:11 – Updated: 2024-11-15 17:28

Title

Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulnerability

Summary

A vulnerability in the 802.11 Generic Advertisement Service (GAS) frame processing function of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS). The vulnerability is due to incomplete input validation of the 802.11 GAS frames that are processed by an affected device. An attacker could exploit this vulnerability by sending a crafted 802.11 GAS frame over the air to an access point (AP), and that frame would then be relayed to the affected WLC. Also, an attacker with Layer 3 connectivity to the WLC could exploit this vulnerability by sending a malicious 802.11 GAS payload in a Control and Provisioning of Wireless Access Points (CAPWAP) packet to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS.

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-119

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 Wireless LAN Controller (WLC)	Affected: n/a

Date Public

2020-04-15 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:30:57.547Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20200415 Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-gas-dos-8FsE3AWH"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-3273",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-15T16:21:52.794648Z",
                "version": "2.0.3"
              },
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-15T17:28:32.318Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Wireless LAN Controller (WLC)",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-04-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the 802.11 Generic Advertisement Service (GAS) frame processing function of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS). The vulnerability is due to incomplete input validation of the 802.11 GAS frames that are processed by an affected device. An attacker could exploit this vulnerability by sending a crafted 802.11 GAS frame over the air to an access point (AP), and that frame would then be relayed to the affected WLC. Also, an attacker with Layer 3 connectivity to the WLC could exploit this vulnerability by sending a malicious 802.11 GAS payload in a Control and Provisioning of Wireless Access Points (CAPWAP) packet to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "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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      ],
      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
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      "providerMetadata": {
        "dateUpdated": "2020-04-15T20:11:23.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20200415 Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulnerability",
          "tags": [
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          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-gas-dos-8FsE3AWH"
        }
      ],
      "source": {
        "advisory": "cisco-sa-wlc-gas-dos-8FsE3AWH",
        "defect": [
          [
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          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
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          "STATE": "PUBLIC",
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        },
        "affects": {
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            }
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        },
        "exploit": [
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}

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-2020-33645

CVE-2020-3273 (GCVE-0-2020-3273)

Tags

Sightings

Nomenclature

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