Vulnerability-Lookup

CNVD-2021-47637

Vulnerability from cnvd - Published: 2021-07-06

Title

Tenable Network Security Nessus权限提升漏洞（CNVD-2021-47637）

Description

Tenable Network Security Nessus是美国Tenable Network Security公司的一款开源的系统漏洞扫描器。 Nessus 存在安全漏洞，该漏洞源于Nessus8.13.2及之前版本被发现包含一个权限升级漏洞，该漏洞允许Nessus管理员用户上传一个特殊制作的文件。攻击者可利用该漏洞获得Nessus主机上的管理员权限。

Severity

高

Patch Name

Tenable Network Security Nessus权限提升漏洞（CNVD-2021-47637）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://zh-cn.tenable.com/security/tns-2021-07?tns_redirect=true

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-20079

Impacted products

Name
Tenable Network Security Nessus <=8.13.2

Show details on source website

JSON

To clipboard

{
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    "cve": {
      "cveNumber": "CVE-2021-20079"
    }
  },
  "description": "Tenable Network Security Nessus\u662f\u7f8e\u56fdTenable Network Security\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u7cfb\u7edf\u6f0f\u6d1e\u626b\u63cf\u5668\u3002\n\nNessus \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eNessus8.13.2\u53ca\u4e4b\u524d\u7248\u672c\u88ab\u53d1\u73b0\u5305\u542b\u4e00\u4e2a\u6743\u9650\u5347\u7ea7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8Nessus\u7ba1\u7406\u5458\u7528\u6237\u4e0a\u4f20\u4e00\u4e2a\u7279\u6b8a\u5236\u4f5c\u7684\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97Nessus\u4e3b\u673a\u4e0a\u7684\u7ba1\u7406\u5458\u6743\u9650\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://zh-cn.tenable.com/security/tns-2021-07?tns_redirect=true",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-47637",
  "openTime": "2021-07-06",
  "patchDescription": "Tenable Network Security Nessus\u662f\u7f8e\u56fdTenable Network Security\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u7cfb\u7edf\u6f0f\u6d1e\u626b\u63cf\u5668\u3002\r\n\r\nNessus \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eNessus8.13.2\u53ca\u4e4b\u524d\u7248\u672c\u88ab\u53d1\u73b0\u5305\u542b\u4e00\u4e2a\u6743\u9650\u5347\u7ea7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8Nessus\u7ba1\u7406\u5458\u7528\u6237\u4e0a\u4f20\u4e00\u4e2a\u7279\u6b8a\u5236\u4f5c\u7684\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97Nessus\u4e3b\u673a\u4e0a\u7684\u7ba1\u7406\u5458\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": "Tenable Network Security Nessus\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-47637\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Tenable Network Security Nessus \u003c=8.13.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-20079",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-30",
  "title": "Tenable Network Security Nessus\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-47637\uff09"
}

CVE-2021-20079 (GCVE-0-2021-20079)

Vulnerability from cvelistv5 – Published: 2021-06-29 18:16 – Updated: 2024-08-03 17:30

Summary

Nessus versions 8.13.2 and earlier were found to contain a privilege escalation vulnerability which could allow a Nessus administrator user to upload a specially crafted file that could lead to gaining administrator privileges on the Nessus host.

Severity

No CVSS data available.

CWE

Local Privilege Escalation

Assigner

tenable CNA under the mitre root

CNA scorecard C 71/100 over 51 records in the last 180 days details

References

1 reference

URL	Tags
https://www.tenable.com/security/tns-2021-07	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Nessus	Affected: Nessus 8.13.2 and earlier

Show details on NVD website

JSON

To clipboard

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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:30:07.345Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.tenable.com/security/tns-2021-07"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Nessus",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Nessus 8.13.2 and earlier"
            }
          ]
        }
      ],
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          "lang": "en",
          "value": "Nessus versions 8.13.2 and earlier were found to contain a privilege escalation vulnerability which could allow a Nessus administrator user to upload a specially crafted file that could lead to gaining administrator privileges on the Nessus host."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Local Privilege Escalation",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-29T18:16:35.000Z",
        "orgId": "5ac1ecc2-367a-4d16-a0b2-35d495ddd0be",
        "shortName": "tenable"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.tenable.com/security/tns-2021-07"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnreport@tenable.com",
          "ID": "CVE-2021-20079",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Nessus",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Nessus 8.13.2 and earlier"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
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            }
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                  "value": "Local Privilege Escalation"
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        },
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              "refsource": "MISC",
              "url": "https://www.tenable.com/security/tns-2021-07"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "5ac1ecc2-367a-4d16-a0b2-35d495ddd0be",
    "assignerShortName": "tenable",
    "cveId": "CVE-2021-20079",
    "datePublished": "2021-06-29T18:16:35.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:30:07.345Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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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.

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.

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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-2021-47637

CVE-2021-20079 (GCVE-0-2021-20079)

Tags

Sightings

Nomenclature

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