Vulnerability-Lookup

CNVD-2020-12671

Vulnerability from cnvd - Published: 2020-02-18

Title

Opencast授权问题漏洞（CNVD-2020-12671）

Description

Opencast是一套免费的开源视频管理解决方案，它具有可扩展、可定制和低成本等特点。 Opencast 7.6之前版本和8.1之前版本中存在授权问题漏洞。该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Opencast授权问题漏洞（CNVD-2020-12671）的补丁

Patch Description

Opencast是一套免费的开源视频管理解决方案，它具有可扩展、可定制和低成本等特点。 Opencast 7.6之前版本和8.1之前版本中存在授权问题漏洞。该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。目前没有详细的漏洞细节提供。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg

Reference

https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee

Impacted products

Name
['Opencast Opencast <8.1', 'Opencast Opencast <7.6']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-5231",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-5231"
    }
  },
  "description": "Opencast\u662f\u4e00\u5957\u514d\u8d39\u7684\u5f00\u6e90\u89c6\u9891\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u5177\u6709\u53ef\u6269\u5c55\u3001\u53ef\u5b9a\u5236\u548c\u4f4e\u6210\u672c\u7b49\u7279\u70b9\u3002\n\nOpencast 7.6\u4e4b\u524d\u7248\u672c\u548c8.1\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u4e2d\u7f3a\u5c11\u8eab\u4efd\u9a8c\u8bc1\u63aa\u65bd\u6216\u8eab\u4efd\u9a8c\u8bc1\u5f3a\u5ea6\u4e0d\u8db3\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\uff1a\r\nhttps://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-12671",
  "openTime": "2020-02-18",
  "patchDescription": "Opencast\u662f\u4e00\u5957\u514d\u8d39\u7684\u5f00\u6e90\u89c6\u9891\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u5177\u6709\u53ef\u6269\u5c55\u3001\u53ef\u5b9a\u5236\u548c\u4f4e\u6210\u672c\u7b49\u7279\u70b9\u3002\r\n\r\nOpencast 7.6\u4e4b\u524d\u7248\u672c\u548c8.1\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u4e2d\u7f3a\u5c11\u8eab\u4efd\u9a8c\u8bc1\u63aa\u65bd\u6216\u8eab\u4efd\u9a8c\u8bc1\u5f3a\u5ea6\u4e0d\u8db3\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": "Opencast\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-12671\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Opencast Opencast \u003c8.1",
      "Opencast Opencast \u003c7.6"
    ]
  },
  "referenceLink": "https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee",
  "serverity": "\u4e2d",
  "submitTime": "2020-02-14",
  "title": "Opencast\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-12671\uff09"
}

CVE-2020-5231 (GCVE-0-2020-5231)

Vulnerability from cvelistv5 – Published: 2020-01-30 21:15 – Updated: 2024-08-04 08:22

Title

Opencast users with ROLE_COURSE_ADMIN can create new users

Summary

In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name – implying an admin for a specific course – users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration.

Severity

4.8 (Medium)


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

CWE

CWE-285 - Improper Authorization

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/opencast/opencast/security/adv…	x_refsource_CONFIRM
https://github.com/opencast/opencast/commit/72fad…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
opencast	opencast	Affected: < 7.6 Affected: >= 8.0, < 8.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:22:08.962Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "opencast",
          "vendor": "opencast",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0, \u003c 8.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name \u2013 implying an admin for a specific course \u2013 users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-285",
              "description": "CWE-285: Improper Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-30T21:15:16.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee"
        }
      ],
      "source": {
        "advisory": "GHSA-94qw-r73x-j7hg",
        "discovery": "UNKNOWN"
      },
      "title": "Opencast users with ROLE_COURSE_ADMIN can create new users",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-5231",
          "STATE": "PUBLIC",
          "TITLE": "Opencast users with ROLE_COURSE_ADMIN can create new users"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "opencast",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 7.6"
                          },
                          {
                            "version_value": "\u003e= 8.0, \u003c 8.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "opencast"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name \u2013 implying an admin for a specific course \u2013 users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-285: Improper Authorization"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg",
              "refsource": "CONFIRM",
              "url": "https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg"
            },
            {
              "name": "https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee",
              "refsource": "MISC",
              "url": "https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-94qw-r73x-j7hg",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-5231",
    "datePublished": "2020-01-30T21:15:16.000Z",
    "dateReserved": "2020-01-02T00:00:00.000Z",
    "dateUpdated": "2024-08-04T08:22:08.962Z",
    "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.

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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.

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CNVD-2020-12671

CVE-2020-5231 (GCVE-0-2020-5231)

Tags

Sightings

Nomenclature

Related by attack behaviour