CVE-2018-7158

The `'path'` module in the Node.js 4.x release line contains a potential regular expression denial of service (ReDoS) vector. The code in question was replaced in Node.js 6.x and later so this vulnerability only impacts all versions of Node.js 4.x. The regular expression, `splitPathRe`, used within the `'path'` module for the various path parsing functions, including `path.dirname()`, `path.extname()` and `path.parse()` was structured in such a way as to allow an attacker to craft a string, that when passed through one of these functions, could take a significant amount of time to evaluate, potentially leading to a full denial of service.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nodejs:node.js:::::-:::*
	cpe:2.3:a:nodejs:node.js:::::lts:::*

History

29 Aug 2022, 20:22

Type	Values Removed	Values Added
CWE	~~CWE-20~~	NVD-CWE-Other

Information

Published : 2018-05-17 14:29

Updated : 2023-12-10 12:30

NVD link : CVE-2018-7158

Mitre link : CVE-2018-7158

CVE.ORG link : CVE-2018-7158

JSON object : View

Products Affected

nodejs

node.js

CWE

NVD-CWE-Other CWE-185

Incorrect Regular Expression

{"id": "CVE-2018-7158", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2018-05-17T14:29:00.527", "references": [{"url": "https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/", "tags": ["Vendor Advisory"], "source": "cve-request@iojs.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}, {"type": "Secondary", "source": "cve-request@iojs.org", "description": [{"lang": "en", "value": "CWE-185"}]}], "descriptions": [{"lang": "en", "value": "The `'path'` module in the Node.js 4.x release line contains a potential regular expression denial of service (ReDoS) vector. The code in question was replaced in Node.js 6.x and later so this vulnerability only impacts all versions of Node.js 4.x. The regular expression, `splitPathRe`, used within the `'path'` module for the various path parsing functions, including `path.dirname()`, `path.extname()` and `path.parse()` was structured in such a way as to allow an attacker to craft a string, that when passed through one of these functions, could take a significant amount of time to evaluate, potentially leading to a full denial of service."}, {"lang": "es", "value": "El m\u00f3dulo \"path\" en la l\u00ednea de distribuci\u00f3n 4.x de Node.js cointiene un vector potencial de denegaci\u00f3n de servicio con expresiones regulares (ReDoS). El c\u00f3digo en cuesti\u00f3n se reemplaz\u00f3 en Node.js 6.x y siguientes, por lo que esta vulnerabilidad solo impact a todas las versiones de Node.js 4.x. La expresi\u00f3n regular \"splitPathRe\", empleada en el m\u00f3dulo \"path\" para las diversas funciones de an\u00e1lisis de ruta, incluyendo \"path.dirname()\", \"path.extname()\" y \"path.parse()\" se estructur\u00f3 de tal forma que permite que un atacante manipule una cadena que, al pasarse por una de estas funciones, podr\u00eda gastar mucho tiempo para evaluar. Esto podr\u00eda conducir a una denegaci\u00f3n de servicio (DoS) completa."}], "lastModified": "2022-08-29T20:22:30.633", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "A47FC4F7-1F77-4314-B4B3-3C5D8E335379", "versionEndIncluding": "4.1.2", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "3B6B4F5F-D4EB-467D-83E3-A8C2A9ECF5FA", "versionEndIncluding": "4.9.1", "versionStartIncluding": "4.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve-request@iojs.org"}