Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CVE-2021-23449
Summary
This affects the package vm2 before 3.9.4 via a Prototype Pollution attack vector, which can lead to execution of arbitrary code on the host machine.
- LOW
- NETWORK
- HIGH
- CHANGED
- 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