cnvd-2019-21309
Vulnerability from cnvd
Title
Cisco Nexus 9000 Series Fabric Switches访问控制错误漏洞
Description
Cisco Nexus 9000 Series Fabric Switches是美国思科(Cisco)公司的一款9000系列光纤交换机。
Cisco Nexus 9000 Series Fabric Switches(处于ACI模式)中建立fabric infrastructure VLAN链接的过程存在访问控制错误漏洞。攻击者可通过在临近的子节点上向Cisco Nexus 9000 Series Switch发送恶意的LLDP数据包利用该漏洞绕过安全限制并将未授权的服务器连接到基础设施的VLAN。
Severity
中
VLAI Severity ?
Patch Name
Cisco Nexus 9000 Series Fabric Switches访问控制错误漏洞的补丁
Patch Description
Cisco Nexus 9000 Series Fabric Switches是美国思科(Cisco)公司的一款9000系列光纤交换机。
Cisco Nexus 9000 Series Fabric Switches(处于ACI模式)中建立fabric infrastructure VLAN链接的过程存在访问控制错误漏洞。攻击者可通过在临近的子节点上向Cisco Nexus 9000 Series Switch发送恶意的LLDP数据包利用该漏洞绕过安全限制并将未授权的服务器连接到基础设施的VLAN。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-20190703-n9kaci-bypass
Reference
https://nvd.nist.gov/vuln/detail/CVE-2019-1890
Impacted products
| Name | Cisco Nexus 9000 Series Fabric Switches |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2019-1890"
}
},
"description": "Cisco Nexus 9000 Series Fabric Switches\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e9000\u7cfb\u5217\u5149\u7ea4\u4ea4\u6362\u673a\u3002\n\nCisco Nexus 9000 Series Fabric Switches\uff08\u5904\u4e8eACI\u6a21\u5f0f\uff09\u4e2d\u5efa\u7acbfabric infrastructure VLAN\u94fe\u63a5\u7684\u8fc7\u7a0b\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u4e34\u8fd1\u7684\u5b50\u8282\u70b9\u4e0a\u5411Cisco Nexus 9000 Series Switch\u53d1\u9001\u6076\u610f\u7684LLDP\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\u5e76\u5c06\u672a\u6388\u6743\u7684\u670d\u52a1\u5668\u8fde\u63a5\u5230\u57fa\u7840\u8bbe\u65bd\u7684VLAN\u3002",
"discovererName": "unKnow",
"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-20190703-n9kaci-bypass",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2019-21309",
"openTime": "2019-07-05",
"patchDescription": "Cisco Nexus 9000 Series Fabric Switches\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e9000\u7cfb\u5217\u5149\u7ea4\u4ea4\u6362\u673a\u3002\r\n\r\nCisco Nexus 9000 Series Fabric Switches\uff08\u5904\u4e8eACI\u6a21\u5f0f\uff09\u4e2d\u5efa\u7acbfabric infrastructure VLAN\u94fe\u63a5\u7684\u8fc7\u7a0b\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u4e34\u8fd1\u7684\u5b50\u8282\u70b9\u4e0a\u5411Cisco Nexus 9000 Series Switch\u53d1\u9001\u6076\u610f\u7684LLDP\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\u5e76\u5c06\u672a\u6388\u6743\u7684\u670d\u52a1\u5668\u8fde\u63a5\u5230\u57fa\u7840\u8bbe\u65bd\u7684VLAN\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 Nexus 9000 Series Fabric Switches\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "Cisco Nexus 9000 Series Fabric Switches"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-1890",
"serverity": "\u4e2d",
"submitTime": "2019-07-05",
"title": "Cisco Nexus 9000 Series Fabric Switches\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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