cnvd - cnvd-2019-39607

CNVD-2019-39607

Vulnerability from cnvd - Published: 2019-11-07

Title

Cisco Aironet Access PPTP拒绝服务漏洞

Description

Cisco Aironet AP是一系列访问接入点产品。 Cisco Aironet Access Points (APs)在点到点隧道协议 (PPTP) VPN数据包处理功能中存在输入验证错误漏洞。远程攻击者可利用该漏洞造成受影响设备重载，导致拒绝服务。

Severity

高

Patch Name

Cisco Aironet Access PPTP拒绝服务漏洞的补丁

Patch Description

Cisco Aironet AP是一系列访问接入点产品。 Cisco Aironet Access Points (APs)在点到点隧道协议 (PPTP) VPN数据包处理功能中存在输入验证错误漏洞。远程攻击者可利用该漏洞造成受影响设备重载，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

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-airo-pptp-dos

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-15261

Impacted products

Name
['Cisco Aironet 1810 Series APs', 'Cisco Aironet 1830 Series APs', 'Cisco Aironet 1850 Series APs']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-15261",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-15261"
    }
  },
  "description": "Cisco Aironet AP\u662f\u4e00\u7cfb\u5217\u8bbf\u95ee\u63a5\u5165\u70b9\u4ea7\u54c1\u3002\n\nCisco Aironet Access Points (APs)\u5728\u70b9\u5230\u70b9\u96a7\u9053\u534f\u8bae (PPTP) VPN\u6570\u636e\u5305\u5904\u7406\u529f\u80fd\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u53d7\u5f71\u54cd\u8bbe\u5907\u91cd\u8f7d\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-airo-pptp-dos",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-39607",
  "openTime": "2019-11-07",
  "patchDescription": "Cisco Aironet AP\u662f\u4e00\u7cfb\u5217\u8bbf\u95ee\u63a5\u5165\u70b9\u4ea7\u54c1\u3002\r\n\r\nCisco Aironet Access Points (APs)\u5728\u70b9\u5230\u70b9\u96a7\u9053\u534f\u8bae (PPTP) VPN\u6570\u636e\u5305\u5904\u7406\u529f\u80fd\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u53d7\u5f71\u54cd\u8bbe\u5907\u91cd\u8f7d\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",
  "patchName": "Cisco Aironet Access PPTP\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Aironet 1810 Series APs",
      "Cisco Aironet 1830 Series APs",
      "Cisco Aironet 1850 Series APs"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-15261",
  "serverity": "\u9ad8",
  "submitTime": "2019-10-24",
  "title": "Cisco Aironet Access PPTP\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-15261 (GCVE-0-2019-15261)

Vulnerability from cvelistv5 – Published: 2019-10-16 18:36 – Updated: 2024-11-19 18:52

Title

Cisco Aironet Access Points Point-to-Point Tunneling Protocol Denial of Service Vulnerability

Summary

A vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cause an internal process of the targeted AP to crash, which in turn would cause the AP to reload. The AP reload would cause a DoS condition for clients that are associated with the AP.

Severity ?

8.6 (High)


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

CWE

CWE-20

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

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

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2019-39607

CVE-2019-15261 (GCVE-0-2019-15261)

Tags

Sightings

Nomenclature