Vulnerability-Lookup

CNVD-2021-02032

Vulnerability from cnvd - Published: 2021-01-12

Title

1E Client权限许可和访问控制问题漏洞（CNVD-2021-02032）

Description

1E Client是美国1E（1E Client）公司的一款无需部署代理的端点管理软件。 1E Client 5.0.0.745版本，4.1.0.267版本存在安全漏洞，该漏洞源于\%PROGRAMDATA\%1EClient目录允许远程经过身份验证的用户和本地用户通过创建到系统目录的连接点，在受保护的目录(在这些目录中，他们通常未能访问创建或修改文件)中创建和修改文件。这将导致部分特权升级。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

1E Client权限许可和访问控制问题漏洞（CNVD-2021-02032）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://help.1e.com/display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-27643

Impacted products

Name
['1e 1E Client 5.0.0.745', '1e 1E Client 4.1.0.267']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-27643",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-27643"
    }
  },
  "description": "1E Client\u662f\u7f8e\u56fd1E\uff081E Client\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u9700\u90e8\u7f72\u4ee3\u7406\u7684\u7aef\u70b9\u7ba1\u7406\u8f6f\u4ef6\u3002\n\n1E Client 5.0.0.745\u7248\u672c\uff0c4.1.0.267\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\\%PROGRAMDATA\\%1EClient\u76ee\u5f55\u5141\u8bb8\u8fdc\u7a0b\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u7528\u6237\u548c\u672c\u5730\u7528\u6237\u901a\u8fc7\u521b\u5efa\u5230\u7cfb\u7edf\u76ee\u5f55\u7684\u8fde\u63a5\u70b9\uff0c\u5728\u53d7\u4fdd\u62a4\u7684\u76ee\u5f55(\u5728\u8fd9\u4e9b\u76ee\u5f55\u4e2d\uff0c\u4ed6\u4eec\u901a\u5e38\u672a\u80fd\u8bbf\u95ee\u521b\u5efa\u6216\u4fee\u6539\u6587\u4ef6)\u4e2d\u521b\u5efa\u548c\u4fee\u6539\u6587\u4ef6\u3002\u8fd9\u5c06\u5bfc\u81f4\u90e8\u5206\u7279\u6743\u5347\u7ea7\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1ahttps://help.1e.com/display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-02032",
  "openTime": "2021-01-12",
  "patchDescription": "1E Client\u662f\u7f8e\u56fd1E\uff081E Client\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u9700\u90e8\u7f72\u4ee3\u7406\u7684\u7aef\u70b9\u7ba1\u7406\u8f6f\u4ef6\u3002\r\n\r\n1E Client 5.0.0.745\u7248\u672c\uff0c4.1.0.267\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\\%PROGRAMDATA\\%1EClient\u76ee\u5f55\u5141\u8bb8\u8fdc\u7a0b\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u7528\u6237\u548c\u672c\u5730\u7528\u6237\u901a\u8fc7\u521b\u5efa\u5230\u7cfb\u7edf\u76ee\u5f55\u7684\u8fde\u63a5\u70b9\uff0c\u5728\u53d7\u4fdd\u62a4\u7684\u76ee\u5f55(\u5728\u8fd9\u4e9b\u76ee\u5f55\u4e2d\uff0c\u4ed6\u4eec\u901a\u5e38\u672a\u80fd\u8bbf\u95ee\u521b\u5efa\u6216\u4fee\u6539\u6587\u4ef6)\u4e2d\u521b\u5efa\u548c\u4fee\u6539\u6587\u4ef6\u3002\u8fd9\u5c06\u5bfc\u81f4\u90e8\u5206\u7279\u6743\u5347\u7ea7\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "1E Client\u6743\u9650\u8bb8\u53ef\u548c\u8bbf\u95ee\u63a7\u5236\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-02032\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "1e 1E Client 5.0.0.745",
      "1e 1E Client 4.1.0.267"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-27643",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-06",
  "title": "1E Client\u6743\u9650\u8bb8\u53ef\u548c\u8bbf\u95ee\u63a7\u5236\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-02032\uff09"
}

CVE-2020-27643 (GCVE-0-2020-27643)

Vulnerability from cvelistv5 – Published: 2020-12-29 20:08 – Updated: 2024-08-04 16:18

Summary

The %PROGRAMDATA%\1E\Client directory in 1E Client 5.0.0.745 and 4.1.0.267 allows remote authenticated users and local users to create and modify files in protected directories (where they would not normally have access to create or modify files) via the creation of a junction point to a system directory. This leads to partial privilege escalation.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://help.1e.com/display/GI/1E+Security+Adviso…	x_refsource_CONFIRM

Date Public

2020-09-25 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:18:45.566Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://help.1e.com/display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-09-25T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The %PROGRAMDATA%\\1E\\Client directory in 1E Client 5.0.0.745 and 4.1.0.267 allows remote authenticated users and local users to create and modify files in protected directories (where they would not normally have access to create or modify files) via the creation of a junction point to a system directory. This leads to partial privilege escalation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-29T20:08:52.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://help.1e.com/display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-27643",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The %PROGRAMDATA%\\1E\\Client directory in 1E Client 5.0.0.745 and 4.1.0.267 allows remote authenticated users and local users to create and modify files in protected directories (where they would not normally have access to create or modify files) via the creation of a junction point to a system directory. This leads to partial privilege escalation."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://help.1e.com/display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645",
              "refsource": "CONFIRM",
              "url": "https://help.1e.com/display/GI/1E+Security+Advisory-1E+Client+for+Windows%3A+CVE-2020-16268%2C+CVE-2020-27643%2C+CVE-2020-27644%2C+CVE-2020-27645"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-27643",
    "datePublished": "2020-12-29T20:08:52.000Z",
    "dateReserved": "2020-10-22T00:00:00.000Z",
    "dateUpdated": "2024-08-04T16:18:45.566Z",
    "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.

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.