Vulnerability-Lookup

CNVD-2020-12674

Vulnerability from cnvd - Published: 2020-02-18

Title

Opencast加密问题漏洞

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 8.1之前版本和7.6之前版本中存在加密问题漏洞。该漏洞源于网络系统或产品未正确使用相关密码算法，导致内容未正确加密、弱加密、明文存储敏感信息等。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Opencast加密问题漏洞的补丁

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 8.1之前版本和7.6之前版本中存在加密问题漏洞。该漏洞源于网络系统或产品未正确使用相关密码算法，导致内容未正确加密、弱加密、明文存储敏感信息等。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-h362-m8f2-5x7c

Reference

https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e

Impacted products

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

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-5229",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-5229"
    }
  },
  "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 8.1\u4e4b\u524d\u7248\u672c\u548c7.6\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u52a0\u5bc6\u95ee\u9898\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u6b63\u786e\u4f7f\u7528\u76f8\u5173\u5bc6\u7801\u7b97\u6cd5\uff0c\u5bfc\u81f4\u5185\u5bb9\u672a\u6b63\u786e\u52a0\u5bc6\u3001\u5f31\u52a0\u5bc6\u3001\u660e\u6587\u5b58\u50a8\u654f\u611f\u4fe1\u606f\u7b49\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-h362-m8f2-5x7c",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-12674",
  "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 8.1\u4e4b\u524d\u7248\u672c\u548c7.6\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u52a0\u5bc6\u95ee\u9898\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u6b63\u786e\u4f7f\u7528\u76f8\u5173\u5bc6\u7801\u7b97\u6cd5\uff0c\u5bfc\u81f4\u5185\u5bb9\u672a\u6b63\u786e\u52a0\u5bc6\u3001\u5f31\u52a0\u5bc6\u3001\u660e\u6587\u5b58\u50a8\u654f\u611f\u4fe1\u606f\u7b49\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\u52a0\u5bc6\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Opencast Opencast \u003c8.1",
      "Opencast Opencast \u003c7.6"
    ]
  },
  "referenceLink": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e",
  "serverity": "\u4e2d",
  "submitTime": "2020-02-14",
  "title": "Opencast\u52a0\u5bc6\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-5229 (GCVE-0-2020-5229)

Vulnerability from cvelistv5 – Published: 2020-01-30 20:05 – Updated: 2024-08-04 08:22

Title

Opencast stores passwords using outdated MD5 hash algorithm

Summary

Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user's password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint.

Severity

7.7 (High)


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

CWE

CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

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/32bfb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
opencast	opencast	Affected: < 8.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:22:08.967Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/opencast/opencast/security/advisories/GHSA-h362-m8f2-5x7c"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "opencast",
          "vendor": "opencast",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 8.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user\u0027s password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-327",
              "description": "CWE-327: Use of a Broken or Risky Cryptographic Algorithm",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-30T20:05:17.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/opencast/opencast/security/advisories/GHSA-h362-m8f2-5x7c"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e"
        }
      ],
      "source": {
        "advisory": "GHSA-h362-m8f2-5x7c",
        "discovery": "UNKNOWN"
      },
      "title": "Opencast stores passwords using outdated MD5 hash algorithm",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2020-5229",
          "STATE": "PUBLIC",
          "TITLE": "Opencast stores passwords using outdated MD5 hash algorithm"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "opencast",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 8.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "opencast"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Opencast before 8.1 stores passwords using the rather outdated and cryptographically insecure MD5 hash algorithm. Furthermore, the hashes are salted using the username instead of a random salt, causing hashes for users with the same username and password to collide which is problematic especially for popular users like the default `admin` user. This essentially means that for an attacker, it might be feasible to reconstruct a user\u0027s password given access to these hashes. Note that attackers needing access to the hashes means that they must gain access to the database in which these are stored first to be able to start cracking the passwords. The problem is addressed in Opencast 8.1 which now uses the modern and much stronger bcrypt password hashing algorithm for storing passwords. Note, that old hashes remain MD5 until the password is updated. For a list of users whose password hashes are stored using MD5, take a look at the `/user-utils/users/md5.json` REST endpoint."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-327: Use of a Broken or Risky Cryptographic Algorithm"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/opencast/opencast/security/advisories/GHSA-h362-m8f2-5x7c",
              "refsource": "CONFIRM",
              "url": "https://github.com/opencast/opencast/security/advisories/GHSA-h362-m8f2-5x7c"
            },
            {
              "name": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e",
              "refsource": "MISC",
              "url": "https://github.com/opencast/opencast/commit/32bfbe5f78e214e2d589f92050228b91d704758e"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-h362-m8f2-5x7c",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-5229",
    "datePublished": "2020-01-30T20:05:17.000Z",
    "dateReserved": "2020-01-02T00:00:00.000Z",
    "dateUpdated": "2024-08-04T08:22:08.967Z",
    "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.