Fix CVE–2020–36632

[debricked]

CVE–2020–36632

Vulnerability details

Description

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.

NVD

A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 is able to address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.

GitHub

flat vulnerable to Prototype Pollution

flat helps flatten/unflatten nested Javascript objects. A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 can address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.

GitLab Advisory Database (Open Source Edition)

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

A vulnerability, which was classified as critical, was found in hughsk flat up to 5.0.0. This affects the function unflatten of the file index.js. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). It is possible to initiate the attack remotely. Upgrading to version 5.0.1 is able to address this issue. The name of the patch is 20ef0ef55dfa028caddaedbcb33efbdb04d18e13. It is recommended to upgrade the affected component. The identifier VDB-216777 was assigned to this vulnerability.

CVSS details - 9.8

 

CVSS3 metrics
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

References

    NVD - CVE-2020-36632
    npm/flat/CVE-2020-36632.yml · main · GitLab.org / GitLab Advisory Database Open Source Edition · GitLab
    flat vulnerable to Prototype Pollution · CVE-2020-36632 · GitHub Advisory Database · GitHub
    Release 5.0.1 · hughsk/flat · GitHub
    Fix prototype pollution on unflatten · hughsk/flat@20ef0ef · GitHub
    CVE-2020-36632: hughsk flat index.js unflatten prototype pollution (Issue 105)
    Prototype Pollution · Issue #105 · hughsk/flat · GitHub
    Fix prototype pollution in unflatten by MatthiasKunnen · Pull Request #106 · hughsk/flat · GitHub
    CVE-2020-36632: hughsk flat index.js unflatten prototype pollution (Issue 105)

 

Related information

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