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

V3 Legend

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

V2 Legend

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
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTEUUTNIEBHGKUKKLNUZSV7IEP6IP3Q3/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UM6XJ73Q3NAM5KSGCOKJ2ZIA6GUWUJLK/	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:36:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*

Information

Published : 2022-04-06 10:15

Updated : 2023-02-23 12:20

NVD link : CVE-2021-43138

Mitre link : CVE-2021-43138

JSON object : View

CWE

CWE-1321

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

Products Affected

async_project

async

fedoraproject

fedora

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7.8 /10