Vulnerability-Lookup

CNVD-2019-46436

Vulnerability from cnvd - Published: 2019-12-20

Title

Cisco IOS Access Points Software输入验证错误漏洞

Description

Cisco IOS Access Points（APs）Software是美国思科（Cisco）公司的一套专用于Cisco无线接入点设备的软件。 Cisco IOS APs Software中802.11r Fast Transition的实现存在输入验证错误漏洞。攻击者可利用该漏洞造成设备意外重启，导致拒绝服务。

Severity

中

Patch Name

Cisco IOS Access Points Software输入验证错误漏洞的补丁

Patch Description

Cisco IOS Access Points（APs）Software是美国思科（Cisco）公司的一套专用于Cisco无线接入点设备的软件。 Cisco IOS APs Software中802.11r Fast Transition的实现存在输入验证错误漏洞。攻击者可利用该漏洞造成设备意外重启，导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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-20190717-aironet-dos

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos

Impacted products

Name
Cisco Cisco IOS Access Points（APs）Software 802.11r Fast Transition

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-1920",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-1920"
    }
  },
  "description": "Cisco IOS Access Points\uff08APs\uff09Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e13\u7528\u4e8eCisco\u65e0\u7ebf\u63a5\u5165\u70b9\u8bbe\u5907\u7684\u8f6f\u4ef6\u3002\n\nCisco IOS APs Software\u4e2d802.11r Fast Transition\u7684\u5b9e\u73b0\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u610f\u5916\u91cd\u542f\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
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  "number": "CNVD-2019-46436",
  "openTime": "2019-12-20",
  "patchDescription": "Cisco IOS Access Points\uff08APs\uff09Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e13\u7528\u4e8eCisco\u65e0\u7ebf\u63a5\u5165\u70b9\u8bbe\u5907\u7684\u8f6f\u4ef6\u3002\r\n\r\nCisco IOS APs Software\u4e2d802.11r Fast Transition\u7684\u5b9e\u73b0\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u610f\u5916\u91cd\u542f\uff0c\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",
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  "products": {
    "product": "Cisco Cisco IOS Access Points\uff08APs\uff09Software 802.11r Fast Transition"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos",
  "serverity": "\u4e2d",
  "submitTime": "2019-07-22",
  "title": "Cisco IOS Access Points Software\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2019-1920 (GCVE-0-2019-1920)

Vulnerability from cvelistv5 – Published: 2019-07-17 20:20 – Updated: 2024-11-21 19:19

Title

Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability

Summary

A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected interface. The vulnerability is due to a lack of complete error handling condition for client authentication requests sent to a targeted interface configured for FT. An attacker could exploit this vulnerability by sending crafted authentication request traffic to the targeted interface, causing the device to restart unexpectedly.

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 2024-11-21 18:57 UTC

CWE

CWE-20

Assigner

cisco mitre root Scorecard

References

2 references

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/109312	vdb-entryx_refsource_BID

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Aironet Access Point Software	Affected: unspecified , < 8.8.100.0 (custom)

Date Public

2019-07-17 00:00

Show details on NVD website

JSON

To clipboard

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          },
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                  },
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                  },
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                  }
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            "scope": "CHANGED",
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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.
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Action not permitted

CNVD-2019-46436

CVE-2019-1920 (GCVE-0-2019-1920)

Tags

Sightings

Nomenclature

Related by attack behaviour