cnvd - cnvd-2020-19227

cnvd-2020-19227

Vulnerability from cnvd

Title: Cisco FXOS, IOS XR和NX-OS Software中Cisco Discovery协议拒绝服务漏洞

Description:

Cisco NX-OS Software等都是美国思科（Cisco）公司的产品。Cisco NX-OS Software是一套交换机使用的数据中心级操作系统软件。Cisco FXOS Software是一套运行在思科安全设备中的防火墙软件。Cisco IOS XR是一套为其网络设备开发的操作系统。

Cisco FXOS Software、Cisco IOS XR Software和Cisco NX-OS Software中Cisco Discovery Protocol的实现存在拒绝服务漏洞，该漏洞源于程序在处理Cisco Discovery Protocol时，缺少检查。远程攻击者可通过发送恶意的Cisco Discovery Protocol数据包重新加载受影响的设备，造成拒绝服务。

Severity: 高

Patch Name: Cisco FXOS, IOS XR和NX-OS Software中Cisco Discovery协议拒绝服务漏洞的补丁

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-20200205-fxnxos-iosxr-cdp-dos

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-3120

Impacted products

Name
['Cisco NX-OS Software', 'Cisco IOS XR Software', 'Cisco FXOS Software']

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-3120"
    }
  },
  "description": "Cisco NX-OS Software\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002Cisco NX-OS Software\u662f\u4e00\u5957\u4ea4\u6362\u673a\u4f7f\u7528\u7684\u6570\u636e\u4e2d\u5fc3\u7ea7\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u3002Cisco FXOS Software\u662f\u4e00\u5957\u8fd0\u884c\u5728\u601d\u79d1\u5b89\u5168\u8bbe\u5907\u4e2d\u7684\u9632\u706b\u5899\u8f6f\u4ef6\u3002Cisco IOS XR\u662f\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco FXOS Software\u3001Cisco IOS XR Software\u548cCisco NX-OS Software\u4e2dCisco Discovery Protocol\u7684\u5b9e\u73b0\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u5904\u7406Cisco Discovery Protocol\u65f6\uff0c\u7f3a\u5c11\u68c0\u67e5\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u6076\u610f\u7684Cisco Discovery Protocol\u6570\u636e\u5305\u91cd\u65b0\u52a0\u8f7d\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-19227",
  "openTime": "2020-03-25",
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  "products": {
    "product": [
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      "Cisco IOS XR Software",
      "Cisco FXOS Software"
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3120",
  "serverity": "\u9ad8",
  "submitTime": "2020-02-06",
  "title": "Cisco FXOS, IOS XR\u548cNX-OS Software\u4e2dCisco Discovery\u534f\u8bae\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-3120 (GCVE-0-2020-3120)

Vulnerability from cvelistv5

Published

2020-02-05 17:50

Modified

2024-11-15 17:42

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-190

Summary

A vulnerability in the Cisco Discovery Protocol implementation for Cisco FXOS Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a missing check when the affected software processes Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to exhaust system memory, causing the device to reload. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-fxnxos-iosxr-cdp-dos	vendor-advisory, x_refsource_CISCO
	http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Version: unspecified < 2.3.1.173

Show details on NVD website

JSON

To clipboard

{
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          },
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            "url": "http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html"
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        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
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    "cna": {
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      "metrics": [
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}

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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