CVE-2021-23470 : This affects the package putil-merge before 3.8.0. The merge() function does not

This affects the package putil-merge before 3.8.0. The merge() function does not check the values passed into the argument. An attacker can supply a malicious value by adjusting the value to include the constructor property. Note: This vulnerability derives from an incomplete fix in https://security.snyk.io/vuln/SNYK-JS-PUTILMERGE-1317077

Published 2022-02-04 20:15:08

Updated 2022-02-09 02:07:01

Source Snyk

View at NVD, CVE.org

Products affected by CVE-2021-23470

Putil-merge Project » Putil-merge
Versions before (<) 3.8.0
cpe:2.3:a:putil-merge_project:putil-merge:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-23470

EPSS FAQ

0.28%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 69 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-23470

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H	3.9	4.2	Snyk
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: High

CWE ids for CVE-2021-23470

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-23470

https://github.com/panates/putil-merge/commit/476d00078dfb2827d7c9ee0f2392c81b864f7bc5

Fixed Prototype Pollution vulnerability (constructor). Thanks to Gill… · panates/putil-merge@476d000 · GitHub
Patch;Third Party Advisory
https://snyk.io/vuln/SNYK-JS-PUTILMERGE-2391487

Prototype Pollution in putil-merge | CVE-2021-23470 | Snyk
Exploit;Vendor Advisory

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Vulnerability Details : CVE-2021-23470

Products affected by CVE-2021-23470

Exploit prediction scoring system (EPSS) score for CVE-2021-23470

CVSS scores for CVE-2021-23470

CWE ids for CVE-2021-23470

References for CVE-2021-23470