Locutus brings stdlibs of other programming languages to JavaScript for educational purposes. In versions from 2.0.12 to before 2.0.39, a prototype pollution vulnerability exists in locutus. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype.
This issue has been patched in version 2.0.39.
Attack Parameters
Attack Vector
Local
Нужен локальный доступ
Attack Complexity
Low
Легко эксплуатировать
Attack Requirements
None
Нет дополнительных условий
Privileges Required
None
Права не нужны
User Interaction
None
Не нужно действие пользователя
Impact Assessment
Confidentiality
High
Полная утечка данных
Integrity
High
Полная модификация данных
Availability
High
Полный отказ в обслуживании
CVSS Vector v4.0