CVE Vulnerability

CVE-2021-23568

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

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

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

References
Link Resource
https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315 Exploit Third Party Advisory
https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60 Broken Link
https://github.com/eggjs/extend2/pull/2 Issue Tracking Patch
https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8 Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2022-01-10 02:10

Updated : 2022-01-13 07:58

NVD link : CVE-2021-23568

Mitre link : CVE-2021-23568

Products Affected
No products.
CWE
CWE-1321

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