Vulnerability-Lookup

CNVD-2019-05926

Vulnerability from cnvd - Published: 2019-03-03

Title

Brocade Fabric OS权限提升漏洞（CNVD-2019-05926）

Description

Brocade Fabric OS（FOS）是美国博科通讯系统（Brocade）公司的一套使用在交换机和路由器等设备中的嵌入式操作系统。 Brocade FOS中的命令行接口的configdownload命令存在安全漏洞。本地攻击者可利用该漏洞绕过受限制的shell并获取root访问权限。

Severity

高

Patch Name

Brocade Fabric OS权限提升漏洞（CNVD-2019-05926）的补丁

Patch Description

Brocade Fabric OS（FOS）是美国博科通讯系统（Brocade）公司的一套使用在交换机和路由器等设备中的嵌入式操作系统。 Brocade FOS中的命令行接口的configdownload命令存在安全漏洞。本地攻击者可利用该漏洞绕过受限制的shell并获取root访问权限。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://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-730

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-6439

Impacted products

Name
['Broadcom Fabric OS <8.2.1', 'Broadcom Fabric OS <8.1.2f', 'Broadcom Fabric OS <8.0.2f', 'Broadcom Fabric OS <7.4.2d']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-6439"
    }
  },
  "description": "Brocade Fabric OS\uff08FOS\uff09\u662f\u7f8e\u56fd\u535a\u79d1\u901a\u8baf\u7cfb\u7edf\uff08Brocade\uff09\u516c\u53f8\u7684\u4e00\u5957\u4f7f\u7528\u5728\u4ea4\u6362\u673a\u548c\u8def\u7531\u5668\u7b49\u8bbe\u5907\u4e2d\u7684\u5d4c\u5165\u5f0f\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nBrocade FOS\u4e2d\u7684\u547d\u4ee4\u884c\u63a5\u53e3\u7684configdownload\u547d\u4ee4\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u53d7\u9650\u5236\u7684shell\u5e76\u83b7\u53d6root\u8bbf\u95ee\u6743\u9650\u3002",
  "discovererName": "Penetration Testing",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-730",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-05926",
  "openTime": "2019-03-03",
  "patchDescription": "Brocade Fabric OS\uff08FOS\uff09\u662f\u7f8e\u56fd\u535a\u79d1\u901a\u8baf\u7cfb\u7edf\uff08Brocade\uff09\u516c\u53f8\u7684\u4e00\u5957\u4f7f\u7528\u5728\u4ea4\u6362\u673a\u548c\u8def\u7531\u5668\u7b49\u8bbe\u5907\u4e2d\u7684\u5d4c\u5165\u5f0f\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nBrocade FOS\u4e2d\u7684\u547d\u4ee4\u884c\u63a5\u53e3\u7684configdownload\u547d\u4ee4\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u53d7\u9650\u5236\u7684shell\u5e76\u83b7\u53d6root\u8bbf\u95ee\u6743\u9650\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": "Brocade Fabric OS\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2019-05926\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Broadcom Fabric OS \u003c8.2.1",
      "Broadcom Fabric OS \u003c8.1.2f",
      "Broadcom Fabric OS \u003c8.0.2f",
      "Broadcom Fabric OS \u003c7.4.2d"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-6439",
  "serverity": "\u9ad8",
  "submitTime": "2018-12-04",
  "title": "Brocade Fabric OS\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2019-05926\uff09"
}

CVE-2018-6439 (GCVE-0-2018-6439)

Vulnerability from cvelistv5 – Published: 2018-12-03 22:00 – Updated: 2026-06-03 13:45

Summary

A Vulnerability in the configdownload command of Brocade Fabric OS command line interface (CLI) versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow a local attacker to escape the restricted shell and, gain root access.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/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 2026-06-03 13:44 UTC

CWE

Privilege Escalation
CWE-noinfo Not enough information

Assigner

brocade mitre root

References

1 reference

URL	Tags
https://www.broadcom.com/support/fibre-channel-ne…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Brocade Communications Systems, Inc.	Brocade Fabric OS	Affected: All versions prior to version 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d

Date Public

2018-10-29 00:00

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T06:01:49.295Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            ],
            "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-730"
          }
        ],
        "title": "CVE Program Container"
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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2018-6439",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-03T13:44:56.256082Z",
                "version": "2.0.3"
              },
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        ],
        "problemTypes": [
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                "lang": "en",
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        "providerMetadata": {
          "dateUpdated": "2026-06-03T13:45:32.504Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "product": "Brocade Fabric OS",
          "vendor": "Brocade Communications Systems, Inc.",
          "versions": [
            {
              "status": "affected",
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "Privilege Escalation",
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            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2018-12-03T21:57:01.000Z",
        "orgId": "87b297d7-335e-4844-9551-11b97995a791",
        "shortName": "brocade"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-730"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@brocade.com",
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          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
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                    {
                      "product_name": "Brocade Fabric OS",
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                  ]
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                "vendor_name": "Brocade Communications Systems, Inc."
              }
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        "data_format": "MITRE",
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        "references": {
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

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