Vulnerability-Lookup

CNVD-2020-49931

Vulnerability from cnvd - Published: 2020-09-02

Title

Cisco NX-OS远程代码执行漏洞

Description

Cisco NX-OS是适用于Cisco Nexus系列以太网交换机和MDS系列光纤通道存储区域网络交换机的网络操作系统。 Cisco NX-OS的数据管理引擎（DME）存在远程代码执行漏洞。该漏洞源于输入验证不足。攻击者可通过向层2邻近设备发送特制Cisco发现协议数据包利用该漏洞以管理员权限执行任意代码，或导致Cisco发现协议进程崩溃并多次重启，从而会导致受影响的设备重新加载。

Severity

高

Patch Name

Cisco NX-OS远程代码执行漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dme-rce-cbE3nhZS

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3415

Impacted products

Name
Cisco Cisco NX-OS

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3415",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3415"
    }
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  "description": "Cisco NX-OS\u662f\u9002\u7528\u4e8eCisco Nexus\u7cfb\u5217\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u548cMDS\u7cfb\u5217\u5149\u7ea4\u901a\u9053\u5b58\u50a8\u533a\u57df\u7f51\u7edc\u4ea4\u6362\u673a\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco NX-OS\u7684\u6570\u636e\u7ba1\u7406\u5f15\u64ce\uff08DME\uff09\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f93\u5165\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u5c422\u90bb\u8fd1\u8bbe\u5907\u53d1\u9001\u7279\u5236Cisco\u53d1\u73b0\u534f\u8bae\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u7ba1\u7406\u5458\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0c\u6216\u5bfc\u81f4Cisco\u53d1\u73b0\u534f\u8bae\u8fdb\u7a0b\u5d29\u6e83\u5e76\u591a\u6b21\u91cd\u542f\uff0c\u4ece\u800c\u4f1a\u5bfc\u81f4\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dme-rce-cbE3nhZS",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-49931",
  "openTime": "2020-09-02",
  "patchDescription": "Cisco NX-OS\u662f\u9002\u7528\u4e8eCisco Nexus\u7cfb\u5217\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u548cMDS\u7cfb\u5217\u5149\u7ea4\u901a\u9053\u5b58\u50a8\u533a\u57df\u7f51\u7edc\u4ea4\u6362\u673a\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco NX-OS\u7684\u6570\u636e\u7ba1\u7406\u5f15\u64ce\uff08DME\uff09\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f93\u5165\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u5c422\u90bb\u8fd1\u8bbe\u5907\u53d1\u9001\u7279\u5236Cisco\u53d1\u73b0\u534f\u8bae\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u7ba1\u7406\u5458\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\uff0c\u6216\u5bfc\u81f4Cisco\u53d1\u73b0\u534f\u8bae\u8fdb\u7a0b\u5d29\u6e83\u5e76\u591a\u6b21\u91cd\u542f\uff0c\u4ece\u800c\u4f1a\u5bfc\u81f4\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\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\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Cisco NX-OS"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3415",
  "serverity": "\u9ad8",
  "submitTime": "2020-08-27",
  "title": "Cisco NX-OS\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e"
}

CVE-2020-3415 (GCVE-0-2020-3415)

Vulnerability from cvelistv5 – Published: 2020-08-27 15:40 – Updated: 2024-11-13 18:10

Title

Cisco NX-OS Software Data Management Engine Remote Code Execution Vulnerability

Summary

A vulnerability in the Data Management Engine (DME) of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code with administrative privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to a Layer 2-adjacent affected device. A successful exploit could allow the attacker to execute arbitrary code with administrative privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition. Note: 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). Exploitation of this vulnerability also requires jumbo frames to be enabled on the interface that receives the crafted Cisco Discovery Protocol packets on the affected device.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-13 17:18 UTC

CWE

CWE-787

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco NX-OS Software	Affected: n/a

Date Public

2020-08-26 00:00

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:30:58.399Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
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          }
        ],
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      {
        "metrics": [
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                "id": "CVE-2020-3415",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
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                  }
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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco NX-OS Software",
          "vendor": "Cisco",
          "versions": [
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      ],
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            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2020-49931

CVE-2020-3415 (GCVE-0-2020-3415)

Tags

Sightings

Nomenclature

Related by attack behaviour