CVE-2021-43138

In Async before 2.6.4 and 3.x before 3.2.2, a malicious user can obtain privileges via the mapValues() method, aka lib/internal/iterator.js createObjectIterator prototype pollution.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/caolan/async/blob/master/lib/mapValuesLimit.js	Third Party Advisory
https://jsfiddle.net/oz5twjd9/	Exploit Third Party Advisory
https://github.com/caolan/async/blob/master/lib/internal/iterator.js	Third Party Advisory
https://github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d	Patch Third Party Advisory
https://github.com/caolan/async/pull/1828	Patch Third Party Advisory
https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md#v264	Release Notes Third Party Advisory
https://github.com/caolan/async/compare/v2.6.3...v2.6.4	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:async_project:async::::::::
	cpe:2.3:a:async_project:async::::::::

Information

Published : 2022-04-06 17:15

Updated : 2022-05-13 12:22

NVD link : CVE-2021-43138

Mitre link : CVE-2021-43138

JSON object : View

Products Affected

async_project

async

CWE

CWE-1321

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

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/caolan/async/blob/master/lib/mapValuesLimit.js", "name": "https://github.com/caolan/async/blob/master/lib/mapValuesLimit.js", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://jsfiddle.net/oz5twjd9/", "name": "https://jsfiddle.net/oz5twjd9/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/caolan/async/blob/master/lib/internal/iterator.js", "name": "https://github.com/caolan/async/blob/master/lib/internal/iterator.js", "tags": ["Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d", "name": "https://github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/caolan/async/pull/1828", "name": "https://github.com/caolan/async/pull/1828", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md#v264", "name": "https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md#v264", "tags": ["Release Notes", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/caolan/async/compare/v2.6.3...v2.6.4", "name": "https://github.com/caolan/async/compare/v2.6.3...v2.6.4", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In Async before 2.6.4 and 3.x before 3.2.2, a malicious user can obtain privileges via the mapValues() method, aka lib/internal/iterator.js createObjectIterator prototype pollution."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-1321"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-43138", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}}, "publishedDate": "2022-04-06T17:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:async_project:async:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.6.4"}, {"cpe23Uri": "cpe:2.3:a:async_project:async:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.2.2", "versionStartIncluding": "3.0.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-05-13T12:22Z"}