cnvd - cnvd-2021-39935

cnvd-2021-39935

Vulnerability from cnvd

Title: Zulip server访问控制错误漏洞（CNVD-2021-39935）

Description:

Zulip server是美国Zulip公司的一款开源的团队聊天应用程序。

Zulip Server 3.4之前版本存在访问控制错误漏洞，该漏洞导致具有此权限的用户能够发送消息。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: Zulip server访问控制错误漏洞（CNVD-2021-39935）的补丁

Patch Description:

Zulip server是美国Zulip公司的一款开源的团队聊天应用程序。

Zulip Server 3.4之前版本存在访问控制错误漏洞，该漏洞导致具有此权限的用户能够发送消息。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://blog.zulip.com/2021/04/14/zulip-server-3-4/

Reference: https://blog.zulip.com/2021/04/14/zulip-server-3-4/

Impacted products

Name
Zulip Zulip Server <3.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-30478",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-30478"
    }
  },
  "description": "Zulip server\u662f\u7f8e\u56fdZulip\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u56e2\u961f\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002\n\nZulip Server 3.4\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5177\u6709\u6b64\u6743\u9650\u7684\u7528\u6237\u80fd\u591f\u53d1\u9001\u6d88\u606f\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://blog.zulip.com/2021/04/14/zulip-server-3-4/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-39935",
  "openTime": "2021-06-07",
  "patchDescription": "Zulip server\u662f\u7f8e\u56fdZulip\u516c\u53f8\u7684\u4e00\u6b3e\u5f00\u6e90\u7684\u56e2\u961f\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nZulip Server 3.4\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5177\u6709\u6b64\u6743\u9650\u7684\u7528\u6237\u80fd\u591f\u53d1\u9001\u6d88\u606f\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": "Zulip server\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-39935\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Zulip Zulip Server \u003c3.4"
  },
  "referenceLink": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-08",
  "title": "Zulip server\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-39935\uff09"
}

CVE-2021-30478 (GCVE-0-2021-30478)

Vulnerability from cvelistv5

Published

2021-04-14 23:47

Modified

2024-08-03 22:32

Severity ?

CWE

Summary

An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the can_forge_sender permission (previously is_api_super_user) resulted in users with this permission being able to send messages appearing as if sent by a system bot, including to other organizations hosted by the same Zulip installation.

References

▼	URL	Tags
	https://blog.zulip.com/2021/04/14/zulip-server-3-4/	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:32:41.032Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the can_forge_sender permission (previously is_api_super_user) resulted in users with this permission being able to send messages appearing as if sent by a system bot, including to other organizations hosted by the same Zulip installation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-14T23:47:27",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-30478",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
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                "product": {
                  "product_data": [
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                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
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          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
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            }
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        },
        "problemtype": {
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                  "value": "n/a"
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        "references": {
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            {
              "name": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/",
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              "url": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/"
            }
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "dateReserved": "2021-04-09T00:00:00",
    "dateUpdated": "2024-08-03T22:32:41.032Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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