Vulnerability-Lookup

CNVD-2021-92454

Vulnerability from cnvd - Published: 2021-11-30

Title

DELL EMC NetWorker文件上传漏洞

Description

DELL EMC NetWorker是美国戴尔（DELL）公司的一套统一备份和恢复软件。该软件提供备份与恢复、消除重复数据、备份报告等功能。 Dell EMC NetWorker 存在文件上传漏洞，该漏洞源于攻击者在 Dell EMC NetWorker 客户端上可以通过 Nsrexecd Nsrrcopy 上传恶意文件，攻击者可利用此漏洞上传木马文件获取服务器控制权限。

Severity

中

Patch Name

DELL EMC NetWorker文件上传漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://vigilance.fr/vulnerability/Dell-EMC-NetWorker-Client-file-upload-via-Nsrexecd-Nsrrcopy-36630

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-36311

Impacted products

Name
Dell EMC NetWorker <19.5.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-36311",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-36311"
    }
  },
  "description": "DELL EMC NetWorker\u662f\u7f8e\u56fd\u6234\u5c14\uff08DELL\uff09\u516c\u53f8\u7684\u4e00\u5957\u7edf\u4e00\u5907\u4efd\u548c\u6062\u590d\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u63d0\u4f9b\u5907\u4efd\u4e0e\u6062\u590d\u3001\u6d88\u9664\u91cd\u590d\u6570\u636e\u3001\u5907\u4efd\u62a5\u544a\u7b49\u529f\u80fd\u3002\n\nDell EMC NetWorker \u5b58\u5728\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u653b\u51fb\u8005\u5728 Dell EMC NetWorker \u5ba2\u6237\u7aef\u4e0a\u53ef\u4ee5\u901a\u8fc7 Nsrexecd Nsrrcopy \u4e0a\u4f20\u6076\u610f\u6587\u4ef6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u4e0a\u4f20\u6728\u9a6c\u6587\u4ef6\u83b7\u53d6\u670d\u52a1\u5668\u63a7\u5236\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://vigilance.fr/vulnerability/Dell-EMC-NetWorker-Client-file-upload-via-Nsrexecd-Nsrrcopy-36630",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-92454",
  "openTime": "2021-11-30",
  "patchDescription": "DELL EMC NetWorker\u662f\u7f8e\u56fd\u6234\u5c14\uff08DELL\uff09\u516c\u53f8\u7684\u4e00\u5957\u7edf\u4e00\u5907\u4efd\u548c\u6062\u590d\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u63d0\u4f9b\u5907\u4efd\u4e0e\u6062\u590d\u3001\u6d88\u9664\u91cd\u590d\u6570\u636e\u3001\u5907\u4efd\u62a5\u544a\u7b49\u529f\u80fd\u3002\r\n\r\nDell EMC NetWorker \u5b58\u5728\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u653b\u51fb\u8005\u5728 Dell EMC NetWorker \u5ba2\u6237\u7aef\u4e0a\u53ef\u4ee5\u901a\u8fc7 Nsrexecd Nsrrcopy \u4e0a\u4f20\u6076\u610f\u6587\u4ef6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u4e0a\u4f20\u6728\u9a6c\u6587\u4ef6\u83b7\u53d6\u670d\u52a1\u5668\u63a7\u5236\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": "DELL EMC NetWorker\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Dell EMC NetWorker \u003c19.5.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-36311",
  "serverity": "\u4e2d",
  "submitTime": "2021-10-15",
  "title": "DELL EMC NetWorker\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e"
}

CVE-2021-36311 (GCVE-0-2021-36311)

Vulnerability from cvelistv5 – Published: 2021-11-23 20:00 – Updated: 2024-09-16 22:09

Summary

Dell EMC Networker versions prior to 19.5 contain an Improper Authorization vulnerability. Any local malicious user with networker user privileges may exploit this vulnerability to upload malicious file to unauthorized locations and execute it.

Severity

6 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

CWE

CWE-285 - Improper Authorization

Assigner

dell mitre root

References

1 reference

URL	Tags
https://www.dell.com/support/kbdoc/000192419	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Dell	NetWorker	Affected: unspecified , < 19.5 (custom)

Date Public

2021-10-11 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:54:51.333Z",
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            ],
            "url": "https://www.dell.com/support/kbdoc/000192419"
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        ],
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    ],
    "cna": {
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          "vendor": "Dell",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
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            "attackVector": "LOCAL",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          }
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      "problemTypes": [
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          "url": "https://www.dell.com/support/kbdoc/000192419"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
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        },
        "affects": {
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                      "version": {
                        "version_data": [
                          {
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                            "version_value": "19.5"
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            ]
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    "dateReserved": "2021-07-08T00:00:00.000Z",
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    "state": "PUBLISHED"
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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.