Vulnerability-Lookup

CNVD-2017-36140

Vulnerability from cnvd - Published: 2017-12-05

Title

多款Cisco产品Cisco NX-OS System Software未授权访问漏洞

Description

Cisco MDS Multilayer Director Switches、Cisco Nexus 7000 Series Switches和Cisco Nexus 7700 Series Switches都是美国思科（Cisco）公司的交换机产品。NX-OS System Software是使用在其中的一套操作系统。多款Cisco产品中的Cisco NX-OS System Software存在未授权访问漏洞，该漏洞源于程序未能充分过滤用户提交的参数。本地攻击者可利用该漏洞绕过脚本沙盒并以已认证用户权限进入操作系统的Bash shell。

Severity

中

Patch Name

多款Cisco产品Cisco NX-OS System Software未授权访问漏洞的补丁

Patch Description

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-20171129-switch

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch

Impacted products

Name
['Cisco Nexus 7700 Series Switches', 'Cisco Nexus 7000 Series Switches 0', 'Cisco MDS Multilayer Director Switches']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-12340"
    }
  },
  "description": "Cisco MDS Multilayer Director Switches\u3001Cisco Nexus 7000 Series Switches\u548cCisco Nexus 7700 Series Switches\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea4\u6362\u673a\u4ea7\u54c1\u3002NX-OS System Software\u662f\u4f7f\u7528\u5728\u5176\u4e2d\u7684\u4e00\u5957\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684Cisco NX-OS System Software\u5b58\u5728\u672a\u6388\u6743\u8bbf\u95ee\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5145\u5206\u8fc7\u6ee4\u7528\u6237\u63d0\u4ea4\u7684\u53c2\u6570\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u811a\u672c\u6c99\u76d2\u5e76\u4ee5\u5df2\u8ba4\u8bc1\u7528\u6237\u6743\u9650\u8fdb\u5165\u64cd\u4f5c\u7cfb\u7edf\u7684Bash shell\u3002",
  "discovererName": "Cisco",
  "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-20171129-switch",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-36140",
  "openTime": "2017-12-05",
  "patchDescription": "Cisco MDS Multilayer Director Switches\u3001Cisco Nexus 7000 Series Switches\u548cCisco Nexus 7700 Series Switches\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea4\u6362\u673a\u4ea7\u54c1\u3002NX-OS System Software\u662f\u4f7f\u7528\u5728\u5176\u4e2d\u7684\u4e00\u5957\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684Cisco NX-OS System Software\u5b58\u5728\u672a\u6388\u6743\u8bbf\u95ee\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5145\u5206\u8fc7\u6ee4\u7528\u6237\u63d0\u4ea4\u7684\u53c2\u6570\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u811a\u672c\u6c99\u76d2\u5e76\u4ee5\u5df2\u8ba4\u8bc1\u7528\u6237\u6743\u9650\u8fdb\u5165\u64cd\u4f5c\u7cfb\u7edf\u7684Bash shell\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": "\u591a\u6b3eCisco\u4ea7\u54c1Cisco NX-OS System Software\u672a\u6388\u6743\u8bbf\u95ee\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Nexus 7700 Series Switches",
      "Cisco Nexus 7000 Series Switches 0",
      "Cisco MDS Multilayer Director Switches"
    ]
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch",
  "serverity": "\u4e2d",
  "submitTime": "2017-12-04",
  "title": "\u591a\u6b3eCisco\u4ea7\u54c1Cisco NX-OS System Software\u672a\u6388\u6743\u8bbf\u95ee\u6f0f\u6d1e"
}

CVE-2017-12340 (GCVE-0-2017-12340)

Vulnerability from cvelistv5 – Published: 2017-11-30 09:00 – Updated: 2024-08-05 18:36

Summary

A vulnerability in Cisco NX-OS System Software running on Cisco MDS Multilayer Director Switches, Cisco Nexus 7000 Series Switches, and Cisco Nexus 7700 Series Switches could allow an authenticated, local attacker to access the Bash shell of an affected device's operating system, even if the Bash shell is disabled on the system. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain functions of the Python scripting sandbox of the affected system. An attacker could exploit this vulnerability to escape the scripting sandbox and enter the Bash shell of the operating system with the privileges of the authenticated user for the affected system. To exploit this vulnerability, the attacker must have local access to the affected system and be authenticated to the affected system with administrative or Python execution privileges. Cisco Bug IDs: CSCvd86513.

Severity

No CVSS data available.

CWE

CWE-284

Assigner

cisco mitre root Scorecard

References

2 references

URL	Tags
http://www.securityfocus.com/bid/102069	vdb-entryx_refsource_BID
https://tools.cisco.com/security/center/content/C…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Cisco Multilayer Director, Nexus 7000 Series, and Nexus 7700 Series Switches	Affected: Cisco Multilayer Director, Nexus 7000 Series, and Nexus 7700 Series Switches

Date Public

2017-11-30 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T18:36:56.229Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "102069",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/102069"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Multilayer Director, Nexus 7000 Series, and Nexus 7700 Series Switches",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco Multilayer Director, Nexus 7000 Series, and Nexus 7700 Series Switches"
            }
          ]
        }
      ],
      "datePublic": "2017-11-30T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in Cisco NX-OS System Software running on Cisco MDS Multilayer Director Switches, Cisco Nexus 7000 Series Switches, and Cisco Nexus 7700 Series Switches could allow an authenticated, local attacker to access the Bash shell of an affected device\u0027s operating system, even if the Bash shell is disabled on the system. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain functions of the Python scripting sandbox of the affected system. An attacker could exploit this vulnerability to escape the scripting sandbox and enter the Bash shell of the operating system with the privileges of the authenticated user for the affected system. To exploit this vulnerability, the attacker must have local access to the affected system and be authenticated to the affected system with administrative or Python execution privileges. Cisco Bug IDs: CSCvd86513."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-12-07T10:57:01.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "102069",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/102069"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "ID": "CVE-2017-12340",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco Multilayer Director, Nexus 7000 Series, and Nexus 7700 Series Switches",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Cisco Multilayer Director, Nexus 7000 Series, and Nexus 7700 Series Switches"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in Cisco NX-OS System Software running on Cisco MDS Multilayer Director Switches, Cisco Nexus 7000 Series Switches, and Cisco Nexus 7700 Series Switches could allow an authenticated, local attacker to access the Bash shell of an affected device\u0027s operating system, even if the Bash shell is disabled on the system. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain functions of the Python scripting sandbox of the affected system. An attacker could exploit this vulnerability to escape the scripting sandbox and enter the Bash shell of the operating system with the privileges of the authenticated user for the affected system. To exploit this vulnerability, the attacker must have local access to the affected system and be authenticated to the affected system with administrative or Python execution privileges. Cisco Bug IDs: CSCvd86513."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "102069",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/102069"
            },
            {
              "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch",
              "refsource": "CONFIRM",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-switch"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2017-12340",
    "datePublished": "2017-11-30T09:00:00.000Z",
    "dateReserved": "2017-08-03T00:00:00.000Z",
    "dateUpdated": "2024-08-05T18:36:56.229Z",
    "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.

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.

Action not permitted

CNVD-2017-36140

CVE-2017-12340 (GCVE-0-2017-12340)

Tags

Sightings

Nomenclature

Related by attack behaviour