Vulnerability-Lookup

CNVD-2021-28351

Vulnerability from cnvd - Published: 2021-04-15

Title

Brocade Fabric OS shell变量修改漏洞

Description

Brocade Fabric OS（FOS）是美国博科（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 Fabric OS中的命令行界面存在shell变量修改漏洞。攻击者可利用该漏洞修改shell变量，从而可提升权限或绕过日志记录。

Severity

低

Patch Name

Brocade Fabric OS shell变量修改漏洞的补丁

Patch Description

Brocade Fabric OS（FOS）是美国博科（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 Fabric OS中的命令行界面存在shell变量修改漏洞。攻击者可利用该漏洞修改shell变量，从而可提升权限或绕过日志记录。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

厂商已发布了漏洞修复程序，请及时关注更新： https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2020-1081

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-15372

Impacted products

Name
['Broadcom Fabric OS <8.2.2a1', 'Broadcom Fabric OS <8.2.2c', 'Broadcom Fabric OS <7.4.2g', 'Broadcom Fabric OS <8.2.0_CBN3', 'Broadcom Fabric OS <8.2.1e', 'Broadcom Fabric OS <8.1.2k', 'Broadcom Fabric OS <9.0.0']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-15372",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-15372"
    }
  },
  "description": "Brocade Fabric OS\uff08FOS\uff09\u662f\u7f8e\u56fd\u535a\u79d1\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 Fabric OS\u4e2d\u7684\u547d\u4ee4\u884c\u754c\u9762\u5b58\u5728shell\u53d8\u91cf\u4fee\u6539\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4fee\u6539shell\u53d8\u91cf\uff0c\u4ece\u800c\u53ef\u63d0\u5347\u6743\u9650\u6216\u7ed5\u8fc7\u65e5\u5fd7\u8bb0\u5f55\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://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2020-1081",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-28351",
  "openTime": "2021-04-15",
  "patchDescription": "Brocade Fabric OS\uff08FOS\uff09\u662f\u7f8e\u56fd\u535a\u79d1\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 Fabric OS\u4e2d\u7684\u547d\u4ee4\u884c\u754c\u9762\u5b58\u5728shell\u53d8\u91cf\u4fee\u6539\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4fee\u6539shell\u53d8\u91cf\uff0c\u4ece\u800c\u53ef\u63d0\u5347\u6743\u9650\u6216\u7ed5\u8fc7\u65e5\u5fd7\u8bb0\u5f55\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 shell\u53d8\u91cf\u4fee\u6539\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Broadcom Fabric OS \u003c8.2.2a1",
      "Broadcom Fabric OS \u003c8.2.2c",
      "Broadcom Fabric OS \u003c7.4.2g",
      "Broadcom Fabric OS \u003c8.2.0_CBN3",
      "Broadcom Fabric OS \u003c8.2.1e",
      "Broadcom Fabric OS \u003c8.1.2k",
      "Broadcom Fabric OS \u003c9.0.0"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-15372",
  "serverity": "\u4f4e",
  "submitTime": "2020-09-27",
  "title": "Brocade Fabric OS shell\u53d8\u91cf\u4fee\u6539\u6f0f\u6d1e"
}

CVE-2020-15372 (GCVE-0-2020-15372)

Vulnerability from cvelistv5 – Published: 2020-09-25 13:10 – Updated: 2024-08-04 13:15

Summary

A vulnerability in the command-line interface in Brocade Fabric OS before Brocade Fabric OS v8.2.2a1, 8.2.2c, v7.4.2g, v8.2.0_CBN3, v8.2.1e, v8.1.2k, v9.0.0, could allow a local authenticated attacker to modify shell variables, which may lead to an escalation of privileges or bypassing the logging.

Severity

No CVSS data available.

CWE

privilege escalation

Assigner

brocade CNA under the mitre root

CNA scorecard B 75/100 over 70 records in the last 180 days details

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
n/a	Brocade Fabric OS	Affected: Brocade Fabric OS v8.2.2a1, 8.2.2c, v7.4.2g, v8.2.0_CBN3, v8.2.1e, v8.1.2k, v9.0.0

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JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:15:20.117Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
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              "x_transferred"
            ],
            "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2020-1081"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Brocade Fabric OS",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Brocade Fabric OS v8.2.2a1, 8.2.2c, v7.4.2g, v8.2.0_CBN3, v8.2.1e, v8.1.2k, v9.0.0"
            }
          ]
        }
      ],
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "privilege escalation",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-25T13:10:40.000Z",
        "orgId": "87b297d7-335e-4844-9551-11b97995a791",
        "shortName": "brocade"
      },
      "references": [
        {
          "tags": [
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          ],
          "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2020-1081"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@brocade.com",
          "ID": "CVE-2020-15372",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Brocade Fabric OS",
                      "version": {
                        "version_data": [
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                          }
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                      }
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                },
                "vendor_name": "n/a"
              }
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          }
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              "value": "A vulnerability in the command-line interface in Brocade Fabric OS before Brocade Fabric OS v8.2.2a1, 8.2.2c, v7.4.2g, v8.2.0_CBN3, v8.2.1e, v8.1.2k, v9.0.0, could allow a local authenticated attacker to modify shell variables, which may lead to an escalation of privileges or bypassing the logging."
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              "refsource": "MISC",
              "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2020-1081"
            }
          ]
        }
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  "cveMetadata": {
    "assignerOrgId": "87b297d7-335e-4844-9551-11b97995a791",
    "assignerShortName": "brocade",
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    "datePublished": "2020-09-25T13:10:40.000Z",
    "dateReserved": "2020-06-29T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:15:20.117Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Vulnerability timeline

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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.
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