Vulnerability-Lookup

CNVD-2020-75063

Vulnerability from cnvd - Published: 2020-12-30

Title

Zammad访问控制绕过漏洞

Description

Zammad是一款基于Web的开源帮助台/客户支持系统。 Zammad 3.5.1之前版本存在访问控制绕过漏洞。在组中具有Customer权限的Agent可通过Ticket详细视图利用该漏洞绕过对内部Article的访问控制。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Zammad访问控制绕过漏洞的补丁

Patch Description

Zammad是一款基于Web的开源帮助台/客户支持系统。 Zammad 3.5.1之前版本存在访问控制绕过漏洞。在组中具有Customer权限的Agent可通过Ticket详细视图利用该漏洞绕过对内部Article的访问控制。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

厂商已发布了漏洞修复程序，请及时关注更新： https://zammad.com/en/advisories/zaa-2020-23

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-29158

Impacted products

Name
Zammad Zammad <3.5.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-29158",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-29158"
    }
  },
  "description": "Zammad\u662f\u4e00\u6b3e\u57fa\u4e8eWeb\u7684\u5f00\u6e90\u5e2e\u52a9\u53f0/\u5ba2\u6237\u652f\u6301\u7cfb\u7edf\u3002\n\nZammad 3.5.1\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u5728\u7ec4\u4e2d\u5177\u6709Customer\u6743\u9650\u7684Agent\u53ef\u901a\u8fc7Ticket\u8be6\u7ec6\u89c6\u56fe\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5bf9\u5185\u90e8Article\u7684\u8bbf\u95ee\u63a7\u5236\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://zammad.com/en/advisories/zaa-2020-23",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-75063",
  "openTime": "2020-12-30",
  "patchDescription": "Zammad\u662f\u4e00\u6b3e\u57fa\u4e8eWeb\u7684\u5f00\u6e90\u5e2e\u52a9\u53f0/\u5ba2\u6237\u652f\u6301\u7cfb\u7edf\u3002\r\n\r\nZammad 3.5.1\u4e4b\u524d\u7248\u672c\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u5728\u7ec4\u4e2d\u5177\u6709Customer\u6743\u9650\u7684Agent\u53ef\u901a\u8fc7Ticket\u8be6\u7ec6\u89c6\u56fe\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5bf9\u5185\u90e8Article\u7684\u8bbf\u95ee\u63a7\u5236\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": "Zammad\u8bbf\u95ee\u63a7\u5236\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Zammad Zammad \u003c3.5.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-29158",
  "serverity": "\u4e2d",
  "submitTime": "2020-12-29",
  "title": "Zammad\u8bbf\u95ee\u63a7\u5236\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2020-29158 (GCVE-0-2020-29158)

Vulnerability from cvelistv5 – Published: 2020-12-28 07:56 – Updated: 2024-08-04 16:48

Summary

An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://zammad.com/en/advisories/zaa-2020-23	x_refsource_MISC
https://github.com/zammad/zammad/commit/cf5a5e396…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:48:01.583Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://zammad.com/en/advisories/zaa-2020-23"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/zammad/zammad/commit/cf5a5e396058d4b134dd33d0a62b11c1733c98ab"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view."
        }
      ],
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      "providerMetadata": {
        "dateUpdated": "2020-12-28T07:56:06.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://zammad.com/en/advisories/zaa-2020-23"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/zammad/zammad/commit/cf5a5e396058d4b134dd33d0a62b11c1733c98ab"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-29158",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
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        "description": {
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              "value": "An issue was discovered in Zammad before 3.5.1. An Agent with Customer permissions in a Group can bypass intended access control on internal Articles via the Ticket detail view."
            }
          ]
        },
        "problemtype": {
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              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://zammad.com/en/advisories/zaa-2020-23",
              "refsource": "MISC",
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            },
            {
              "name": "https://github.com/zammad/zammad/commit/cf5a5e396058d4b134dd33d0a62b11c1733c98ab",
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2020-12-28T07:56:06.000Z",
    "dateReserved": "2020-11-27T00:00:00.000Z",
    "dateUpdated": "2024-08-04T16:48:01.583Z",
    "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.