Vulnerability-Lookup

GHSA-MMH6-M7V9-5956

Vulnerability from github – Published: 2022-06-03 00:01 – Updated: 2022-06-03 22:25

Summary

Regular expression denial of service in markdown-link-extractor

Details

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module's exported function

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "markdown-link-extractor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "markdown-link-extractor"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-43308"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-06-03T22:25:16Z",
    "nvd_published_at": "2022-06-02T14:15:00Z",
    "severity": "LOW"
  },
  "details": "An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module\u0027s exported function",
  "id": "GHSA-mmh6-m7v9-5956",
  "modified": "2022-06-03T22:25:16Z",
  "published": "2022-06-03T00:01:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43308"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/tcort/markdown-link-extractor"
    },
    {
      "type": "WEB",
      "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Regular expression denial of service in markdown-link-extractor"
}

CVE-2021-43308 (GCVE-0-2021-43308)

Vulnerability from cvelistv5 – Published: 2022-06-01 16:47 – Updated: 2024-09-16 17:28

Title

Exponential ReDoS in markdown-link-extractor

Summary

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

JFROG

References

1 reference

URL	Tags
https://research.jfrog.com/vulnerabilities/markdo…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
markdown-link-extractor	markdown-link-extractor	Affected: unspecified , < 3.0.2 (custom)

Date Public

2022-05-29 00:00

Credits

Denys Vozniuk from JFrog Security Research

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:55:28.483Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "markdown-link-extractor",
          "vendor": "markdown-link-extractor",
          "versions": [
            {
              "changes": [
                {
                  "at": "4.0.1",
                  "status": "unaffected"
                }
              ],
              "lessThan": "3.0.2",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Denys Vozniuk from JFrog Security Research"
        }
      ],
      "datePublic": "2022-05-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module\u0027s exported function"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-06-01T16:47:49.000Z",
        "orgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
        "shortName": "JFROG"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Exponential ReDoS in markdown-link-extractor",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "AKA": "",
          "ASSIGNER": "security@jfrog.com",
          "DATE_PUBLIC": "2022-05-29T23:05:00.000Z",
          "ID": "CVE-2021-43308",
          "STATE": "PUBLIC",
          "TITLE": "Exponential ReDoS in markdown-link-extractor"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
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                "product": {
                  "product_data": [
                    {
                      "product_name": "markdown-link-extractor",
                      "version": {
                        "version_data": [
                          {
                            "platform": "",
                            "version_affected": "\u003c",
                            "version_name": "",
                            "version_value": "3.0.2"
                          },
                          {
                            "platform": "",
                            "version_affected": "\u003c",
                            "version_name": "",
                            "version_value": "4.0.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "markdown-link-extractor"
              }
            ]
          }
        },
        "configuration": [],
        "credit": [
          {
            "lang": "eng",
            "value": "Denys Vozniuk from JFrog Security Research"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "lang": "eng",
              "value": "An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module\u0027s exported function"
            }
          ]
        },
        "exploit": [],
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
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              "description": [
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                  "lang": "eng",
                  "value": "CWE-1333 Inefficient Regular Expression Complexity"
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/",
              "refsource": "MISC",
              "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"
            }
          ]
        },
        "solution": [],
        "source": {
          "advisory": "",
          "defect": [],
          "discovery": "EXTERNAL"
        },
        "work_around": []
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d",
    "assignerShortName": "JFROG",
    "cveId": "CVE-2021-43308",
    "datePublished": "2022-06-01T16:47:49.228Z",
    "dateReserved": "2021-11-03T00:00:00.000Z",
    "dateUpdated": "2024-09-16T17:28:35.115Z",
    "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.

Action not permitted

GHSA-MMH6-M7V9-5956

CVE-2021-43308 (GCVE-0-2021-43308)

Tags

Sightings

Nomenclature