Vulnerability-Lookup

FKIE_CVE-2021-3779

Vulnerability from fkie_nvd - Published: 2022-06-28 17:15 - Updated: 2026-06-17 04:05

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Summary

A malicious MySQL server can request local file content from a client using ruby-mysql prior to version 2.10.0 without explicit authorization from the user. This issue was resolved in version 2.10.0 and later.

References

	URL	Tags
	cve@rapid7.com	https://www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/	Exploit, Mitigation, Third Party Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/	Exploit, Mitigation, Third Party Advisory

Impacted products

	Vendor	Product	Version
	ruby-mysql_project	ruby-mysql	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "ruby-mysql",
          "vendor": "Tomita Masahiro",
          "versions": [
            {
              "lessThanOrEqual": "2.9.14",
              "status": "affected",
              "version": "2.9.14",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@rapid7.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ruby-mysql_project:ruby-mysql:*:*:*:*:*:ruby:*:*",
              "matchCriteriaId": "036D01F1-8360-48A3-AEE2-8428E83EA61A",
              "versionEndExcluding": "2.10.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious MySQL server can request local file content from a client using ruby-mysql prior to version 2.10.0 without explicit authorization from the user. This issue was resolved in version 2.10.0 and later."
    },
    {
      "lang": "es",
      "value": "Un servidor MySQL malicioso puede solicitar el contenido de un archivo local a un cliente usando ruby-mysql versiones anteriores a 2.10.0, sin autorizaci\u00f3n expl\u00edcita del usuario. Este problema ha sido resuelto en versiones 2.10.0 y posteriores"
    }
  ],
  "id": "CVE-2021-3779",
  "lastModified": "2026-06-17T04:05:44.840",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-06-28T17:15:07.827",
  "references": [
    {
      "source": "cve@rapid7.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/"
    }
  ],
  "sourceIdentifier": "cve@rapid7.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-610"
        }
      ],
      "source": "cve@rapid7.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-610"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-3779 (GCVE-0-2021-3779)

Vulnerability from cvelistv5 – Published: 2022-06-28 16:30 – Updated: 2024-09-17 00:16

Title

Ruby-MySQL Gem Client File Read

Summary

Severity

No CVSS data available.

CWE

CWE-610 - Externally Controlled Reference to a Resource in Another Sphere

Assigner

rapid7 CNA under the mitre root

CNA scorecard B 76/100 over 59 records in the last 180 days details

References

1 reference

URL	Tags
https://www.rapid7.com/blog/post/2022/06/28/cve-2…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Tomita Masahiro	ruby-mysql	Affected: 2.9.14 , ≤ 2.9.14 (custom)

Date Public

2022-06-28 00:00

Credits

Discovered by Hans-Martin Münch of MOGWAI LABS GmbH, reported by Rapid7, coordinated by CERT/CC and JPCERT/CC

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T17:09:08.660Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
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            ],
            "url": "https://www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/"
          }
        ],
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    ],
    "cna": {
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          "product": "ruby-mysql",
          "vendor": "Tomita Masahiro",
          "versions": [
            {
              "lessThanOrEqual": "2.9.14",
              "status": "affected",
              "version": "2.9.14",
              "versionType": "custom"
            }
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        }
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          "url": "https://www.rapid7.com/blog/post/2022/06/28/cve-2021-3779-ruby-mysql-gem-client-file-read-fixed/"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Update to version 2.10.0 or later of ruby-mysql"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Ruby-MySQL Gem Client File Read",
      "x_generator": {
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      "x_legacyV4Record": {
        "CVE_data_meta": {
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        },
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          "vendor": {
            "vendor_data": [
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                "product": {
                  "product_data": [
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                      "product_name": "ruby-mysql",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "2.9.14",
                            "version_value": "2.9.14"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Tomita Masahiro"
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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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.

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