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

CVE-2022-39396

High
9.8/10

Summary

Parse Server is an open-source backend that can be deployed to any infrastructure that can run Node.js. Versions through 4.10.17, 5.0.x through 5.3.0, and 5.4.x through 5.4.0-alpha.1 are vulnerable to Remote Code Execution via prototype pollution. An attacker can use this prototype pollution sink to trigger a remote code execution through the MongoDB BSON parser.

  • LOW
  • NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-1321 - Prototype Pollution

Prototype pollution is one of the lesser-known vulnerabilities. It allows attackers to abuse the rules of JavaScript by injecting properties into the general object “Object” in JS. Modifying the prototype of “Object” affects the behavior of all objects in the entire app, potentially resulting in denial of service, arbitrary code execution, cross-site scripting, etc.

References

Advisory Timeline

  • Published