CVE-2021-23568 - Vulnerability Details - OpenCVE

The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00502.

Key SSVC decision points have not yet been added.

Vendors	Products
Eggjs Subscribe	Extend2 Subscribe

Configuration 1 [-]

cpe:2.3:a:eggjs:extend2:*:*:*:*:*:node.js:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2022-0606	The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.
Github GHSA	GHSA-gjm5-83cw-p3p2	Prototype Pollution in extend2

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60
https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8
https://github.com/eggjs/extend2/pull/2
https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315

History

No history.

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: snyk

Published: 2022-01-07T20:05:13.398458Z

Updated: 2024-09-16T17:54:22.698Z

Reserved: 2021-01-08T00:00:00

Link: CVE-2021-23568

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-01-10T14:10:17.043

Modified: 2024-11-21T05:51:50.253

Link: CVE-2021-23568

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-1321

{"containers": {"cna": {"affected": [{"product": "extend2", "vendor": "n/a", "versions": [{"lessThan": "1.0.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Bob \"Wombat\" Hogg"}], "datePublic": "2022-01-07T00:00:00", "descriptions": [{"lang": "en", "value": "The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "exploitCodeMaturity": "PROOF_OF_CONCEPT", "integrityImpact": "LOW", "privilegesRequired": "NONE", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "scope": "UNCHANGED", "temporalScore": 6.9, "temporalSeverity": "MEDIUM", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Prototype Pollution", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-01-07T20:05:13", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/eggjs/extend2/pull/2"}], "title": "Prototype Pollution", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2022-01-07T20:00:12.624176Z", "ID": "CVE-2021-23568", "STATE": "PUBLIC", "TITLE": "Prototype Pollution"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "extend2", "version": {"version_data": [{"version_affected": "<", "version_value": "1.0.1"}]}}]}, "vendor_name": "n/a"}]}}, "credit": [{"lang": "eng", "value": "Bob \"Wombat\" Hogg"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Prototype Pollution"}]}]}, "references": {"reference_data": [{"name": "https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315", "refsource": "MISC", "url": "https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315"}, {"name": "https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60", "refsource": "MISC", "url": "https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60"}, {"name": "https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8", "refsource": "MISC", "url": "https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8"}, {"name": "https://github.com/eggjs/extend2/pull/2", "refsource": "MISC", "url": "https://github.com/eggjs/extend2/pull/2"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T19:14:08.783Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/eggjs/extend2/pull/2"}]}]}, "cveMetadata": {"assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "assignerShortName": "snyk", "cveId": "CVE-2021-23568", "datePublished": "2022-01-07T20:05:13.398458Z", "dateReserved": "2021-01-08T00:00:00", "dateUpdated": "2024-09-16T17:54:22.698Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:eggjs:extend2:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "D3A02AB9-BE8E-418A-9F62-A5CA23077D0E", "versionEndExcluding": "1.0.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge."}, {"lang": "es", "value": "El paquete extend2 versiones anteriores a 1.0.1, es vulnerable a una Contaminaci\u00f3n de Prototipos por medio de la funci\u00f3n extend debido a una fusi\u00f3n recursiva no segura"}], "id": "CVE-2021-23568", "lastModified": "2024-11-21T05:51:50.253", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.4, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-01-10T14:10:17.043", "references": [{"source": "report@snyk.io", "tags": ["Broken Link"], "url": "https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60"}, {"source": "report@snyk.io", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8"}, {"source": "report@snyk.io", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/eggjs/extend2/pull/2"}, {"source": "report@snyk.io", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/eggjs/extend2/pull/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1321"}], "source": "nvd@nist.gov", "type": "Primary"}]}