Vulnerability-Lookup

CNVD-2021-39546

Vulnerability from cnvd - Published: 2021-06-04

Title

Zulip server存在未明漏洞（CNVD-2021-39546）

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之前的3.x版本存在安全漏洞，该漏洞源于组织管理员能够将消息移动到由相同的Zulip安装托管的其他组织中的流中。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Zulip server存在未明漏洞（CNVD-2021-39546）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之前的3.x版本存在安全漏洞，该漏洞源于组织管理员能够将消息移动到由相同的Zulip安装托管的其他组织中的流中。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://nvd.nist.gov/vuln/detail/CVE-2021-30487

Impacted products

Name
Zulip Zulip Server 3.*，<3.4

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2021-30487",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-30487"
    }
  },
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  "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-2021-39546",
  "openTime": "2021-06-04",
  "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\u76843.x\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7ec4\u7ec7\u7ba1\u7406\u5458\u80fd\u591f\u5c06\u6d88\u606f\u79fb\u52a8\u5230\u7531\u76f8\u540c\u7684Zulip\u5b89\u88c5\u6258\u7ba1\u7684\u5176\u4ed6\u7ec4\u7ec7\u4e2d\u7684\u6d41\u4e2d\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\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-39546\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Zulip Zulip Server 3.*\uff0c\u003c3.4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-30487",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-08",
  "title": "Zulip server\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-39546\uff09"
}

CVE-2021-30487 (GCVE-0-2021-30487)

Vulnerability from cvelistv5 – Published: 2021-04-14 23:43 – Updated: 2024-08-03 22:32

Summary

In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

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

Show details on NVD website

JSON

To clipboard

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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:32:41.139Z",
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              "x_transferred"
            ],
            "url": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/"
          }
        ],
        "title": "CVE Program Container"
      }
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          "versions": [
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            }
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      ],
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        {
          "lang": "en",
          "value": "In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation."
        }
      ],
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      },
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          "url": "https://blog.zulip.com/2021/04/14/zulip-server-3-4/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
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          "ID": "CVE-2021-30487",
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        "affects": {
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                      "version": {
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                            "version_value": "n/a"
                          }
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    "state": "PUBLISHED"
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}

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.