cnvd - cnvd-2019-06604

cnvd-2019-06604

Vulnerability from cnvd

Title: Cisco NX-OS拒绝服务漏洞

Description:

Cisco NX-OS是一套交换机使用的数据中心级操作系统软件。

Cisco NX-OS 802.1X版本存在拒绝服务漏洞。该漏洞源于局域网上的可扩展身份验证协议（EAPOL）帧的输入未能完整验证。攻击者可通过向目标设备上的接口发送特制EAPOL帧导致层2（L2）转发过程多次重启，从而导致系统级设备重启和拒绝服务条件。

Severity: 中

Patch Name: Cisco NX-OS拒绝服务漏洞的补丁

Patch Description:

Cisco NX-OS是一套交换机使用的数据中心级操作系统软件。

Cisco NX-OS 802.1X版本存在拒绝服务漏洞。该漏洞源于局域网上的可扩展身份验证协议（EAPOL）帧的输入未能完整验证。攻击者可通过向目标设备上的接口发送特制EAPOL帧导致层2（L2）转发过程多次重启，从而导致系统级设备重启和拒绝服务条件。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:

厂商已发布漏洞修复程序，请及时关注更新：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth

Impacted products

Name
Cisco NX-OS 802.1X

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-1594"
    }
  },
  "description": "Cisco NX-OS\u662f\u4e00\u5957\u4ea4\u6362\u673a\u4f7f\u7528\u7684\u6570\u636e\u4e2d\u5fc3\u7ea7\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u3002\n\nCisco NX-OS 802.1X\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5c40\u57df\u7f51\u4e0a\u7684\u53ef\u6269\u5c55\u8eab\u4efd\u9a8c\u8bc1\u534f\u8bae\uff08EAPOL\uff09\u5e27\u7684\u8f93\u5165\u672a\u80fd\u5b8c\u6574\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u76ee\u6807\u8bbe\u5907\u4e0a\u7684\u63a5\u53e3\u53d1\u9001\u7279\u5236EAPOL\u5e27\u5bfc\u81f4\u5c422\uff08L2\uff09\u8f6c\u53d1\u8fc7\u7a0b\u591a\u6b21\u91cd\u542f\uff0c\u4ece\u800c\u5bfc\u81f4\u7cfb\u7edf\u7ea7\u8bbe\u5907\u91cd\u542f\u548c\u62d2\u7edd\u670d\u52a1\u6761\u4ef6\u3002",
  "discovererName": "Unknown",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-06604",
  "openTime": "2019-03-06",
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  "products": {
    "product": "Cisco NX-OS 802.1X"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth",
  "serverity": "\u4e2d",
  "submitTime": "2019-03-07",
  "title": "Cisco NX-OS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-1594 (GCVE-0-2019-1594)

Vulnerability from cvelistv5

Published

2019-03-06 22:00

Modified

2024-11-21 19:44

Severity ?

7.4 (High) - CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-264

Summary

A vulnerability in the 802.1X implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation of Extensible Authentication Protocol over LAN (EAPOL) frames. An attacker could exploit this vulnerability by sending a crafted EAPOL frame to an interface on the targeted device. A successful exploit could allow the attacker to cause the Layer 2 (L2) forwarding process to restart multiple times, leading to a system-level restart of the device and a DoS condition. Note: This vulnerability affects only NX-OS devices configured with 802.1X functionality. Cisco Nexus 1000V Switch for VMware vSphere devices are affected in versions prior to 5.2(1)SV3(1.4b). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.3(5)N1(1) and 7.1(5)N1(1b). Nexus 7000 and 7700 Series Switches are affected in versions prior to 8.2(3). Nexus 9000 Series Fabric Switches in ACI Mode are affected in versions prior to 13.2(1l). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4).

References

▼	URL	Tags
	http://www.securityfocus.com/bid/107325	vdb-entry, x_refsource_BID
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nx-os-lan-auth	vendor-advisory, x_refsource_CISCO

Impacted products

Vendor

Product

Version

▼

Cisco

Nexus 1000V Switch for VMware vSphere

Version: unspecified < 5.2(1)SV3(1.4b)

Cisco	Nexus 3000 Series Switches	Version: unspecified < 7.0(3)I7(4)
Cisco	Nexus 3500 Platform Switches	Version: unspecified < 7.0(3)I7(4)
Cisco	Nexus 2000, 5500, 5600, and 6000 Series Switches	Version: unspecified < 7.3(5)N1(1) Version: unspecified < 7.1(5)N1(1b)
Cisco	Nexus 7000 and 7700 Series Switches	Version: unspecified < 8.2(3)
Cisco	Nexus 9000 Series Fabric Switches in ACI Mode	Version: unspecified < 13.2(1l)
Cisco	Nexus 9000 Series Switches in Standalone NX-OS Mode	Version: unspecified < 7.0(3)I7(4)

Show details on NVD website

JSON

To clipboard

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        ],
        "title": "CVE Program Container"
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        "metrics": [
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    "dateReserved": "2018-12-06T00:00:00",
    "dateUpdated": "2024-11-21T19:44:08.732Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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