GHSA-m9hw-7xfv-wqg7
Suggest an improvement- Source
- https://github.com/advisories/GHSA-m9hw-7xfv-wqg7
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/11/GHSA-m9hw-7xfv-wqg7/GHSA-m9hw-7xfv-wqg7.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-m9hw-7xfv-wqg7
- Published
- 2020-11-12T19:36:14Z
- Modified
- 2020-11-12T19:35:53Z
- Summary
- Prototype Pollution in json-logic-js
- Details
-
Versions of json-logic-js prior to 2.0.0 are vulnerable to Prototype Pollution. The method operation allows a malicious user to modify the prototype of Object through the method property name. This causes modification of any existing property that will exist on all objects and leads to Remote Code Execution.
The following rule creates a popup when run from a browser:
{ "method": [ { "method": [ { "var": "__proto__.constructor.is.__proto__" }, "constructor", [ "var x = 'SECURITY!'; console.log(x, window.fetch); alert(x)" ] ] }, "call" ] } - Database specific
{ "cwe_ids": [ "CWE-471" ], "github_reviewed": true, "github_reviewed_at": "2020-11-12T19:35:53Z", "nvd_published_at": null, "severity": "HIGH" }- References
Affected packages
npm / json-logic-js
Package
- Name
- json-logic-js
- View open source insights on deps.dev
- Purl
- pkg:npm/json-logic-js