CVE-2021-23421

All versions of package merge-change are vulnerable to Prototype Pollution via the utils.set function.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js%23L89-L123	Broken Link
https://snyk.io/vuln/SNYK-JS-MERGECHANGE-1310985	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:merge-change_project:merge-change:*:*:*:*:*:node.js:*:*

History

19 Aug 2021, 17:28

Type	Values Removed	Values Added
References	~~(MISC) https://snyk.io/vuln/SNYK-JS-MERGECHANGE-1310985 -~~	(MISC) https://snyk.io/vuln/SNYK-JS-MERGECHANGE-1310985 - Exploit, Third Party Advisory
References	~~(MISC) https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js%23L89-L123 -~~	(MISC) https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js%23L89-L123 - Broken Link
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
CWE		CWE-915
CPE		cpe:2.3:a:merge-change_project:merge-change::::::node.js::*

11 Aug 2021, 18:27

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-08-11 18:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-23421

Mitre link : CVE-2021-23421

CVE.ORG link : CVE-2021-23421

JSON object : View

Products Affected

merge-change_project

merge-change

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

{"id": "CVE-2021-23421", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "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": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "report@snyk.io", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.6, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 2.2}]}, "published": "2021-08-11T18:15:07.323", "references": [{"url": "https://github.com/VladimirShestakov/merge-change/blob/9901f145e06158f284f52de42e6ba5b0f702fb65/utils.js%23L89-L123", "tags": ["Broken Link"], "source": "report@snyk.io"}, {"url": "https://snyk.io/vuln/SNYK-JS-MERGECHANGE-1310985", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "All versions of package merge-change are vulnerable to Prototype Pollution via the utils.set function."}, {"lang": "es", "value": "Todas las versiones del paquete merge-change son vulnerables a la Contaminaci\u00f3n de Prototipos por medio de la funci\u00f3n utils.set"}], "lastModified": "2022-06-28T14:11:45.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:merge-change_project:merge-change:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "5BADD718-132F-4CB5-9D26-7AEAF64AB1A1"}], "operator": "OR"}]}], "sourceIdentifier": "report@snyk.io"}