Vulnerability-Lookup

CNVD-2017-04623

Vulnerability from cnvd - Published: 2017-04-18

Title

Zulip Server安全绕过漏洞

Description

Zulip Server是一套使用Python编写的基于Django框架的开源组聊天应用程序。 Zulip Server 1.4.3之前的版本中的check_stream_exists route的autosubscribe功能实现存在安全漏洞。攻击者可利用该漏洞绕过安全限制，执行未授权的操作。

Severity

中

Patch Name

Zulip Server安全绕过漏洞的补丁

Patch Description

Zulip Server是一套使用Python编写的基于Django框架的开源组聊天应用程序。 Zulip Server 1.4.3之前的版本中的check_stream_exists route的autosubscribe功能实现存在安全漏洞。攻击者可利用该漏洞绕过安全限制，执行未授权的操作。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

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f

Reference

https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f

Impacted products

Name
Zulip Zulip <1.4.3

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "97159"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-0881",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0881"
    }
  },
  "description": "Zulip Server\u662f\u4e00\u5957\u4f7f\u7528Python\u7f16\u5199\u7684\u57fa\u4e8eDjango\u6846\u67b6\u7684\u5f00\u6e90\u7ec4\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nZulip Server 1.4.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684check_stream_exists route\u7684autosubscribe\u529f\u80fd\u5b9e\u73b0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\u3002",
  "discovererName": "Rafid Aslam",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-04623",
  "openTime": "2017-04-18",
  "patchDescription": "Zulip Server\u662f\u4e00\u5957\u4f7f\u7528Python\u7f16\u5199\u7684\u57fa\u4e8eDjango\u6846\u67b6\u7684\u5f00\u6e90\u7ec4\u804a\u5929\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nZulip Server 1.4.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684check_stream_exists route\u7684autosubscribe\u529f\u80fd\u5b9e\u73b0\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\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\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Zulip Zulip \u003c1.4.3"
  },
  "referenceLink": "https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f",
  "serverity": "\u4e2d",
  "submitTime": "2017-03-31",
  "title": "Zulip Server\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-0881 (GCVE-0-2017-0881)

Vulnerability from cvelistv5 – Published: 2017-03-28 02:46 – Updated: 2024-08-05 13:18

Summary

An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to join. The issue affects all previously released versions of the Zulip server.

Severity

No CVSS data available.

CWE

CWE-200 - Information Exposure (CWE-200)

Assigner

hackerone CNA under the mitre root

CNA scorecard D 59/100 over 192 records in the last 180 days details

References

3 references

URL	Tags
http://www.securityfocus.com/bid/97159	vdb-entryx_refsource_BID
https://groups.google.com/d/msg/zulip-announce/Vy…	x_refsource_MISC
https://github.com/zulip/zulip/commit/7ecda1ac8e2…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Zulip Server Versions 1.4.2 and below	Affected: Zulip Server Versions 1.4.2 and below

Date Public

2017-03-27 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T13:18:06.509Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "97159",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/97159"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Zulip Server Versions 1.4.2 and below",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Zulip Server Versions 1.4.2 and below"
            }
          ]
        }
      ],
      "datePublic": "2017-03-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to join. The issue affects all previously released versions of the Zulip server."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "Information Exposure (CWE-200)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-03-29T09:57:01.000Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "name": "97159",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/97159"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2017-0881",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Zulip Server Versions 1.4.2 and below",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Zulip Server Versions 1.4.2 and below"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An error in the implementation of an autosubscribe feature in the check_stream_exists route of the Zulip group chat application server before 1.4.3 allowed an authenticated user to subscribe to a private stream that should have required an invitation from an existing member to join. The issue affects all previously released versions of the Zulip server."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Information Exposure (CWE-200)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "97159",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/97159"
            },
            {
              "name": "https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ",
              "refsource": "MISC",
              "url": "https://groups.google.com/d/msg/zulip-announce/VyawgRuoY34/NTBwnTArGwAJ"
            },
            {
              "name": "https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f",
              "refsource": "MISC",
              "url": "https://github.com/zulip/zulip/commit/7ecda1ac8e26d8fb3725e954b2dc4723dda2255f"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2017-0881",
    "datePublished": "2017-03-28T02:46:00.000Z",
    "dateReserved": "2016-11-30T00:00:00.000Z",
    "dateUpdated": "2024-08-05T13:18:06.509Z",
    "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.

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.

Action not permitted

CNVD-2017-04623

CVE-2017-0881 (GCVE-0-2017-0881)

Tags

Sightings

Nomenclature

Related by attack behaviour