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Prototype pollution in object-path

High severity GitHub Reviewed Published Oct 19, 2020 in mariocasciaro/object-path • Updated Nov 29, 2023

Package

npm object-path (npm)

Affected versions

< 0.11.5

Patched versions

0.11.5

Description

Impact

A prototype pollution vulnerability has been found in object-path <= 0.11.4 affecting the set() method. The vulnerability is limited to the includeInheritedProps mode (if version >= 0.11.0 is used), which has to be explicitly enabled by creating a new instance of object-path and setting the option includeInheritedProps: true, or by using the default withInheritedProps instance. The default operating mode is not affected by the vulnerability if version >= 0.11.0 is used. Any usage of set() in versions < 0.11.0 is vulnerable.

Patches

Upgrade to version >= 0.11.5

Workarounds

Don't use the includeInheritedProps: true options or the withInheritedProps instance if using a version >= 0.11.0.

References

Read more about the prototype pollution vulnerability

For more information

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References

@mariocasciaro mariocasciaro published to mariocasciaro/object-path Oct 19, 2020
Reviewed Oct 19, 2020
Published to the GitHub Advisory Database Oct 19, 2020
Published by the National Vulnerability Database Oct 19, 2020
Last updated Nov 29, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(39th percentile)

Weaknesses

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Learn more on MITRE.

Modification of Assumed-Immutable Data (MAID)

The product does not properly protect an assumed-immutable element from being modified by an attacker. Learn more on MITRE.

CVE ID

CVE-2020-15256

GHSA ID

GHSA-cwx2-736x-mf6w

Source code

Credits

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