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CVE-2021-4264: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

December 21, 2022 (updated December 22, 2022)

A vulnerability was found in LinkedIn dustjs 3.0.0 and classified as problematic. Affected by this issue is some unknown functionality. The manipulation leads to improperly controlled modification of object prototype attributes (‘prototype pollution’). The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.1 is able to address this issue. The name of the patch is ddb6523832465d38c9d80189e9de60519ac307c3. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216464.

References

  • github.com/advisories/GHSA-c6rp-wrp9-qr4q
  • github.com/linkedin/dustjs/commit/ddb6523832465d38c9d80189e9de60519ac307c3
  • github.com/linkedin/dustjs/issues/804
  • github.com/linkedin/dustjs/pull/805
  • github.com/linkedin/dustjs/releases/tag/v3.0.0
  • nvd.nist.gov/vuln/detail/CVE-2021-4264
  • vuldb.com/?id.216464

Code Behaviors & Features

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Affected versions

All versions before 3.0.0

Fixed versions

  • 3.0.0

Solution

Upgrade to version 3.0.0 or above.

Impact 8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Source file

npm/dustjs-linkedin/CVE-2021-4264.yml

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