CVE-2021-43308 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00126.

Key SSVC decision points have not yet been added.

Vendors	Products
Markdown-link-extractor Project	Markdown-link-extractor

Configuration 1 [-]

OR	cpe:2.3:a:markdown-link-extractor_project:markdown-link-extractor::::::node.js::*
	cpe:2.3:a:markdown-link-extractor_project:markdown-link-extractor:4.0.0:::::node.js::

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/

History

No history.

MITRE

Status: PUBLISHED

Assigner: JFROG

Published: 2022-06-01T16:47:49.228959Z

Updated: 2024-09-16T17:28:35.115Z

Reserved: 2021-11-03T00:00:00

Link: CVE-2021-43308

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-06-02T14:15:31.047

Modified: 2024-11-21T06:29:03.300

Link: CVE-2021-43308

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"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", "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's 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", "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": [{"product": {"product_data": [{"product_name": "markdown-link-extractor", "version": {"version_data": [{"platform": "", "version_affected": "<", "version_name": "", "version_value": "3.0.2"}, {"platform": "", "version_affected": "<", "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": {"description_data": [{"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's 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": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-1333 Inefficient Regular Expression Complexity"}]}]}, "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": []}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T03:55:28.483Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"}]}]}, "cveMetadata": {"assignerOrgId": "48a46f29-ae42-4e1d-90dd-c1676c1e5e6d", "assignerShortName": "JFROG", "cveId": "CVE-2021-43308", "datePublished": "2022-06-01T16:47:49.228959Z", "dateReserved": "2021-11-03T00:00:00", "dateUpdated": "2024-09-16T17:28:35.115Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:markdown-link-extractor_project:markdown-link-extractor:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "77C6249C-3CEC-4BC8-A963-00E91F8FBE0F", "versionEndExcluding": "3.0.2", "vulnerable": true}, {"criteria": "cpe:2.3:a:markdown-link-extractor_project:markdown-link-extractor:4.0.0:*:*:*:*:node.js:*:*", "matchCriteriaId": "5AD7CD80-59F4-4841-A1C7-25DA0EC5EAEB", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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's exported function"}, {"lang": "es", "value": "Un ReDoS exponencial (Denegaci\u00f3n de Servicio por Expresi\u00f3n Regular) puede ser desencadenado en el paquete npm markdown-link-extractor, cuando un atacante es capaz de suministrar una entrada arbitraria a la funci\u00f3n exportada del m\u00f3dulo"}], "id": "CVE-2021-43308", "lastModified": "2024-11-21T06:29:03.300", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "reefs@jfrog.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-06-02T14:15:31.047", "references": [{"source": "reefs@jfrog.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"}], "sourceIdentifier": "reefs@jfrog.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "reefs@jfrog.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-1333"}], "source": "nvd@nist.gov", "type": "Primary"}]}