GSD-2021-29432

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.
Aliases
Aliases
CVE-2021-29432
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{
  "GSD": {
    "alias": "CVE-2021-29432",
    "description": "Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.",
    "id": "GSD-2021-29432"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-29432"
      ],
      "details": "Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.",
      "id": "GSD-2021-29432",
      "modified": "2023-12-13T01:23:36.771263Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-29432",
        "STATE": "PUBLIC",
        "TITLE": "Malicious users could control the content of invitation emails"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "sydent",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 2.3.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "matrix-org"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
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      "problemtype": {
        "problemtype_data": [
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            "description": [
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                "value": "CWE-20 Improper Input Validation"
              }
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          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://pypi.org/project/matrix-sydent/",
            "refsource": "MISC",
            "url": "https://pypi.org/project/matrix-sydent/"
          },
          {
            "name": "https://github.com/matrix-org/sydent/releases/tag/v2.3.0",
            "refsource": "MISC",
            "url": "https://github.com/matrix-org/sydent/releases/tag/v2.3.0"
          },
          {
            "name": "https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx",
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            "url": "https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx"
          },
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            "refsource": "MISC",
            "url": "https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-mh74-4m5g-fcjx",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c2.3.0",
          "affected_versions": "All versions before 2.3.0",
          "cvss_v2": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2021-04-19",
          "description": "Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed d1d.",
          "fixed_versions": [
            "2.3.0"
          ],
          "identifier": "CVE-2021-29432",
          "identifiers": [
            "GHSA-mh74-4m5g-fcjx",
            "CVE-2021-29432"
          ],
          "not_impacted": "All versions starting from 2.3.0",
          "package_slug": "pypi/matrix-sydent",
          "pubdate": "2021-04-19",
          "solution": "Upgrade to version 2.3.0 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx",
            "https://pypi.org/project/matrix-sydent/",
            "https://nvd.nist.gov/vuln/detail/CVE-2021-29432",
            "https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42",
            "https://github.com/matrix-org/sydent/releases/tag/v2.3.0",
            "https://github.com/advisories/GHSA-mh74-4m5g-fcjx"
          ],
          "uuid": "ae2c8f05-4d34-4d90-b543-dc49e11718d3"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.3.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx",
              "refsource": "CONFIRM",
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            },
            {
              "name": "https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42",
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              "name": "https://pypi.org/project/matrix-sydent/",
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              "tags": [
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            },
            {
              "name": "https://github.com/matrix-org/sydent/releases/tag/v2.3.0",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/matrix-org/sydent/releases/tag/v2.3.0"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.1,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-08-03T10:17Z",
      "publishedDate": "2021-04-15T21:15Z"
    }
  }
}


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  • 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.
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