CVE-2017-16088

The safe-eval module describes itself as a safer version of eval. By accessing the object constructors, un-sanitized user input can access the entire standard library and effectively break out of the sandbox.

The safe-eval module describes itself as a safer version of eval. By accessing the object constructors, un-sanitized user input can access the entire standard library and effectively break out of the sandbox.

Affected versions of `safe-eval` are vulnerable to a sandbox escape. By accessing object constructors, un-sanitized user input can access the entire standard library and effectively break out of the sandbox. ## Proof of Concept: This code accesses the process object and calls `.exit()` ```js var safeEval = require('safe-eval'); safeEval("this.constructor.constructor('return process')().exit()"); ``` ## Recommendation Update to version 0.4.0 or later

Affected versions of `safe-eval` are vulnerable to a sandbox escape. By accessing object constructors, un-sanitized user input can access the entire standard library and effectively break out of the sandbox. ## Proof of Concept: This code accesses the process object and calls `.exit()` ```js var safeEval = require('safe-eval'); safeEval("this.constructor.constructor('return process')().exit()"); ``` ## Recommendation Update to version 0.4.0 or later

El módulo safe-eval se describe como una versión más segura de eval. Mediante el acceso a los constructores de objeto, las entradas de usuario no saneadas pueden acceder a la totalidad de la biblioteca estándar y salir del sandbox.