CVE-2020-26311

Useragent is a user agent parser for Node.js. All versions as of time of publication contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no patches are available.

CVSS v3 7.5 HIGH

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

References

Link	Resource
https://github.com/3rd-Eden/useragent/issues/167	Issue Tracking
https://securitylab.github.com/advisories/GHSL-2020-312-redos-useragent/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:useragent_project:useragent:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2024-10-26 21:15

Updated : 2024-10-30 18:07

NVD link : CVE-2020-26311

Mitre link : CVE-2020-26311

CVE.ORG link : CVE-2020-26311

JSON object : View

Products Affected

useragent_project

useragent

CWE

CWE-1333

Inefficient Regular Expression Complexity

{"id": "CVE-2020-26311", "cveTags": [], "metrics": {"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}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"safety": "NOT_DEFINED", "version": "4.0", "recovery": "NOT_DEFINED", "baseScore": 8.7, "automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "GREEN", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "modifiedAttackVector": "NOT_DEFINED", "integrityRequirements": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "availabilityRequirements": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subsequentSystemIntegrity": "NONE", "vulnerableSystemIntegrity": "NONE", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "confidentialityRequirements": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "subsequentSystemAvailability": "NONE", "vulnerableSystemAvailability": "HIGH", "subsequentSystemConfidentiality": "NONE", "vulnerableSystemConfidentiality": "NONE", "modifiedSubsequentSystemIntegrity": "NOT_DEFINED", "modifiedVulnerableSystemIntegrity": "NOT_DEFINED", "modifiedSubsequentSystemAvailability": "NOT_DEFINED", "modifiedVulnerableSystemAvailability": "NOT_DEFINED", "modifiedSubsequentSystemConfidentiality": "NOT_DEFINED", "modifiedVulnerableSystemConfidentiality": "NOT_DEFINED"}}]}, "published": "2024-10-26T21:15:14.400", "references": [{"url": "https://github.com/3rd-Eden/useragent/issues/167", "tags": ["Issue Tracking"], "source": "security-advisories@github.com"}, {"url": "https://securitylab.github.com/advisories/GHSL-2020-312-redos-useragent/", "tags": ["Exploit", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1333"}]}], "descriptions": [{"lang": "en", "value": "Useragent is a user agent parser for Node.js. All versions as of time of publication contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no patches are available."}, {"lang": "es", "value": "Useragent es un analizador de agente de usuario para Node.js. Todas las versiones al momento de la publicaci\u00f3n contienen una o m\u00e1s expresiones regulares que son vulnerables a la denegaci\u00f3n de servicio de expresiones regulares (ReDoS). Al momento de la publicaci\u00f3n, no hay parches disponibles."}], "lastModified": "2024-10-30T18:07:38.110", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:useragent_project:useragent:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "BBA66A46-0609-4D7A-8CB6-B5EAA8E5BB0B"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}