Vulnerability-Lookup

CNVD-2022-07639

Vulnerability from cnvd - Published: 2022-01-30

Title

Discourse信息泄露漏洞（CNVD-2022-07639）

Description

Discourse是一套开源的社区讨论平台。 Discourse存在信息泄露漏洞，任何包含组的私有消息都将其标题和参与用户公开给没有权限访问该私有消息的用户。攻击者可以通过该漏洞获取部分私有消息。

Severity

中

Patch Name

Discourse信息泄露漏洞（CNVD-2022-07639）的补丁

Patch Description

Discourse是一套开源的社区讨论平台。 Discourse存在信息泄露漏洞，任何包含组的私有消息都将其标题和参与用户公开给没有权限访问该私有消息的用户。攻击者可以通过该漏洞获取部分私有消息。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/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-41082

Impacted products

Name
Discourse Discourse <2021-09-14

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41082",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41082"
    }
  },
  "description": "Discourse\u662f\u4e00\u5957\u5f00\u6e90\u7684\u793e\u533a\u8ba8\u8bba\u5e73\u53f0\u3002\n\nDiscourse\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u4efb\u4f55\u5305\u542b\u7ec4\u7684\u79c1\u6709\u6d88\u606f\u90fd\u5c06\u5176\u6807\u9898\u548c\u53c2\u4e0e\u7528\u6237\u516c\u5f00\u7ed9\u6ca1\u6709\u6743\u9650\u8bbf\u95ee\u8be5\u79c1\u6709\u6d88\u606f\u7684\u7528\u6237\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u8be5\u6f0f\u6d1e\u83b7\u53d6\u90e8\u5206\u79c1\u6709\u6d88\u606f\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/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-07639",
  "openTime": "2022-01-30",
  "patchDescription": "Discourse\u662f\u4e00\u5957\u5f00\u6e90\u7684\u793e\u533a\u8ba8\u8bba\u5e73\u53f0\u3002\r\n\r\nDiscourse\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u4efb\u4f55\u5305\u542b\u7ec4\u7684\u79c1\u6709\u6d88\u606f\u90fd\u5c06\u5176\u6807\u9898\u548c\u53c2\u4e0e\u7528\u6237\u516c\u5f00\u7ed9\u6ca1\u6709\u6743\u9650\u8bbf\u95ee\u8be5\u79c1\u6709\u6d88\u606f\u7684\u7528\u6237\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u8be5\u6f0f\u6d1e\u83b7\u53d6\u90e8\u5206\u79c1\u6709\u6d88\u606f\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": "Discourse\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2022-07639\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Discourse Discourse \u003c2021-09-14"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-41082",
  "serverity": "\u4e2d",
  "submitTime": "2022-01-26",
  "title": "Discourse\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2022-07639\uff09"
}

CVE-2021-41082 (GCVE-0-2021-41082)

Vulnerability from cvelistv5 – Published: 2021-09-20 20:20 – Updated: 2024-08-04 02:59

Title

Private message title and participating users leaked in discourse

Summary

Discourse is a platform for community discussion. In affected versions any private message that includes a group had its title and participating user exposed to users that do not have access to the private messages. However, access control for the private messages was not compromised as users were not able to view the posts in the leaked private message despite seeing it in their inbox. The problematic commit was reverted around 32 minutes after it was made. Users are encouraged to upgrade to the latest commit if they are running Discourse against the `tests-passed` branch.

Severity

7.5 (High)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/discourse/discourse/security/a…	x_refsource_CONFIRM
https://github.com/discourse/discourse/commit/27b…	x_refsource_MISC
https://github.com/discourse/discourse/commit/ddb…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
discourse	discourse	Affected: >= tests-passed = ddb4583, < tests-passed = 27bad28

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:59:31.354Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vv"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2c"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "discourse",
          "vendor": "discourse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= tests-passed = ddb4583, \u003c tests-passed = 27bad28"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Discourse is a platform for community discussion. In affected versions any private message that includes a group had its title and participating user exposed to users that do not have access to the private messages. However, access control for the private messages was not compromised as users were not able to view the posts in the leaked private message despite seeing it in their inbox. The problematic commit was reverted around 32 minutes after it was made. Users are encouraged to upgrade to the latest commit if they are running Discourse against the `tests-passed` branch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-20T20:20:10.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vv"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2c"
        }
      ],
      "source": {
        "advisory": "GHSA-vm3x-w6jm-j9vv",
        "discovery": "UNKNOWN"
      },
      "title": "Private message title and participating users leaked in discourse",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-41082",
          "STATE": "PUBLIC",
          "TITLE": "Private message title and participating users leaked in discourse"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "discourse",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e= tests-passed = ddb4583, \u003c tests-passed = 27bad28"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "discourse"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "Discourse is a platform for community discussion. In affected versions any private message that includes a group had its title and participating user exposed to users that do not have access to the private messages. However, access control for the private messages was not compromised as users were not able to view the posts in the leaked private message despite seeing it in their inbox. The problematic commit was reverted around 32 minutes after it was made. Users are encouraged to upgrade to the latest commit if they are running Discourse against the `tests-passed` branch."
            }
          ]
        },
        "impact": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
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              "description": [
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                  "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
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              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vv",
              "refsource": "CONFIRM",
              "url": "https://github.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vv"
            },
            {
              "name": "https://github.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b",
              "refsource": "MISC",
              "url": "https://github.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4b"
            },
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              "refsource": "MISC",
              "url": "https://github.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2c"
            }
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-41082",
    "datePublished": "2021-09-20T20:20:11.000Z",
    "dateReserved": "2021-09-15T00:00:00.000Z",
    "dateUpdated": "2024-08-04T02:59:31.354Z",
    "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.

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CNVD-2022-07639

CVE-2021-41082 (GCVE-0-2021-41082)

Tags

Sightings

Nomenclature

Related by attack behaviour