GSD-2020-26176

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/<DocumentID>/attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them.
Aliases
Aliases
CVE-2020-26176
To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-26176",
    "description": "An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/\u003cDocumentID\u003e/attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them.",
    "id": "GSD-2020-26176"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-26176"
      ],
      "details": "An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/\u003cDocumentID\u003e/attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them.",
      "id": "GSD-2020-26176",
      "modified": "2023-12-13T01:22:09.291984Z",
      "schema_version": "1.4.0"
    }
  },
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        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-26176",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
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      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "lang": "eng",
            "value": "An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/\u003cDocumentID\u003e/attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:N",
          "version": "3.1"
        }
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      "references": {
        "reference_data": [
          {
            "name": "https://www.tangro.de/",
            "refsource": "MISC",
            "url": "https://www.tangro.de/"
          },
          {
            "name": "https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/",
            "refsource": "MISC",
            "url": "https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/"
          }
        ]
      }
    },
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        "nodes": [
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:tangro:business_workflow:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.18.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
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      "cve": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-26176"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An issue was discovered in tangro Business Workflow before 1.18.1. No (or broken) access control checks exist on the /api/document/\u003cDocumentID\u003e/attachments API endpoint. Knowing a document ID, an attacker can list all the attachments of a workitem, including their respective IDs. This allows the attacker to gather valid attachment IDs for workitems that do not belong to them."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-922"
                }
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        "references": {
          "reference_data": [
            {
              "name": "https://www.tangro.de/",
              "refsource": "MISC",
              "tags": [
                "Product"
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              "url": "https://www.tangro.de/"
            },
            {
              "name": "https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities/",
              "refsource": "MISC",
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 4.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2020-12-21T16:56Z",
      "publishedDate": "2020-12-18T10:15Z"
    }
  }
}



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