cnvd - cnvd-2020-14757

cnvd-2020-14757

Vulnerability from cnvd

Title: Cisco NX-OS Software信任管理问题漏洞

Description:

Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。

Cisco Nexus 3000 Series Switches和Nexus 9000 Series Switches（处于standalone NX-OS模式下）中的NX-OS Software中存在信任管理问题漏洞。远程攻击者可利用该漏洞绕过BGP MD5身份验证，与其他NX-OS设备建立BGP会话。

Severity: 高

Patch Name: Cisco NX-OS Software信任管理问题漏洞的补丁

Patch Description:

Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。

Cisco Nexus 3000 Series Switches和Nexus 9000 Series Switches（处于standalone NX-OS模式下）中的NX-OS Software中存在信任管理问题漏洞。远程攻击者可利用该漏洞绕过BGP MD5身份验证，与其他NX-OS设备建立BGP会话。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-20200226-nxos-bgpmd5

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-3165

Impacted products

Name
['Cisco NX-OS Software 9.2(1)', 'Cisco NX-OS Software 9.2(2)', 'Cisco NX-OS Software 9.2(3)', 'Cisco NX-OS Software 9.3(1)']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3165"
    }
  },
  "description": "Cisco NX-OS Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4ea4\u6362\u673a\u4f7f\u7528\u7684\u6570\u636e\u4e2d\u5fc3\u7ea7\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u3002\n\nCisco Nexus 3000 Series Switches\u548cNexus 9000 Series Switches\uff08\u5904\u4e8estandalone NX-OS\u6a21\u5f0f\u4e0b\uff09\u4e2d\u7684NX-OS Software\u4e2d\u5b58\u5728\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7BGP MD5\u8eab\u4efd\u9a8c\u8bc1\uff0c\u4e0e\u5176\u4ed6NX-OS\u8bbe\u5907\u5efa\u7acbBGP\u4f1a\u8bdd\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-bgpmd5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-14757",
  "openTime": "2020-03-01",
  "patchDescription": "Cisco NX-OS Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4ea4\u6362\u673a\u4f7f\u7528\u7684\u6570\u636e\u4e2d\u5fc3\u7ea7\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u3002\r\n\r\nCisco Nexus 3000 Series Switches\u548cNexus 9000 Series Switches\uff08\u5904\u4e8estandalone NX-OS\u6a21\u5f0f\u4e0b\uff09\u4e2d\u7684NX-OS Software\u4e2d\u5b58\u5728\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7BGP MD5\u8eab\u4efd\u9a8c\u8bc1\uff0c\u4e0e\u5176\u4ed6NX-OS\u8bbe\u5907\u5efa\u7acbBGP\u4f1a\u8bdd\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 NX-OS Software\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco NX-OS Software 9.2(1)",
      "Cisco NX-OS Software 9.2(2)",
      "Cisco NX-OS Software 9.2(3)",
      "Cisco NX-OS Software 9.3(1)"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3165",
  "serverity": "\u9ad8",
  "submitTime": "2020-02-28",
  "title": "Cisco NX-OS Software\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-3165 (GCVE-0-2020-3165)

Vulnerability from cvelistv5

Published

2020-02-26 16:45

Modified

2024-11-15 17:39

Severity ?

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

CWE

CWE-798

Summary

A vulnerability in the implementation of Border Gateway Protocol (BGP) Message Digest 5 (MD5) authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD5 authentication is bypassed if the peer does not have MD5 authentication configured, the NX-OS device does have BGP MD5 authentication configured, and the NX-OS BGP virtual routing and forwarding (VRF) name is configured to be greater than 19 characters. An attacker could exploit this vulnerability by attempting to establish a BGP session with the NX-OS peer. A successful exploit could allow the attacker to establish a BGP session with the NX-OS device without MD5 authentication. The Cisco implementation of the BGP protocol accepts incoming BGP traffic only from explicitly configured peers. To exploit this vulnerability, an attacker must send the malicious packets over a TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the affected system’s trusted network.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-bgpmd5	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco NX-OS Software	Version: 9.2(1)

Show details on NVD website

JSON

To clipboard

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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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