Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Objects proto and defineGetter properties, which may allow an attacker to execute arbitrary code through crafted payloads.
Weakness
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Handlebars.js | Handlebars.js_project | 1.0.6 (including) | 1.0.6 (including) |
| Handlebars.js | Handlebars.js_project | 1.0.7 (including) | 1.0.7 (including) |
| Handlebars.js | Handlebars.js_project | 1.0.8 (including) | 1.0.8 (including) |
| Handlebars.js | Handlebars.js_project | 1.0.9 (including) | 1.0.9 (including) |
| Handlebars.js | Handlebars.js_project | 1.0.10 (including) | 1.0.10 (including) |
| Handlebars.js | Handlebars.js_project | 1.0.11 (including) | 1.0.11 (including) |
| Handlebars.js | Handlebars.js_project | 1.0.12 (including) | 1.0.12 (including) |
| Handlebars.js | Handlebars.js_project | 1.1.0 (including) | 1.1.0 (including) |
| Handlebars.js | Handlebars.js_project | 1.1.1 (including) | 1.1.1 (including) |
| Handlebars.js | Handlebars.js_project | 1.1.2 (including) | 1.1.2 (including) |
| Handlebars.js | Handlebars.js_project | 1.2.0 (including) | 1.2.0 (including) |
| Handlebars.js | Handlebars.js_project | 1.2.1 (including) | 1.2.1 (including) |
| Handlebars.js | Handlebars.js_project | 1.3.0 (including) | 1.3.0 (including) |
| Handlebars.js | Handlebars.js_project | 2.0.0 (including) | 2.0.0 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.0 (including) | 3.0.0 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.1 (including) | 3.0.1 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.2 (including) | 3.0.2 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.3 (including) | 3.0.3 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.4 (including) | 3.0.4 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.5 (including) | 3.0.5 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.6 (including) | 3.0.6 (including) |
| Handlebars.js | Handlebars.js_project | 3.0.7 (including) | 3.0.7 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.0 (including) | 4.0.0 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.1 (including) | 4.0.1 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.2 (including) | 4.0.2 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.3 (including) | 4.0.3 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.4 (including) | 4.0.4 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.5 (including) | 4.0.5 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.6 (including) | 4.0.6 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.7 (including) | 4.0.7 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.8 (including) | 4.0.8 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.9 (including) | 4.0.9 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.10 (including) | 4.0.10 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.11 (including) | 4.0.11 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.12 (including) | 4.0.12 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.13 (including) | 4.0.13 (including) |
| Handlebars.js | Handlebars.js_project | 4.0.14 (including) | 4.0.14 (including) |
| Handlebars.js | Handlebars.js_project | 4.1.0 (including) | 4.1.0 (including) |
| Handlebars.js | Handlebars.js_project | 4.1.1 (including) | 4.1.1 (including) |
| Handlebars.js | Handlebars.js_project | 4.1.2 (including) | 4.1.2 (including) |
| Handlebars.js | Handlebars.js_project | 4.2.0 (including) | 4.2.0 (including) |
| Handlebars.js | Handlebars.js_project | 4.2.1 (including) | 4.2.1 (including) |
| Handlebars.js | Handlebars.js_project | 4.2.2 (including) | 4.2.2 (including) |
| RHPAM 7.13.1 async | RedHat | handlebars | * |
| Node-handlebars | Ubuntu | bionic | * |
| Node-handlebars | Ubuntu | disco | * |
| Node-handlebars | Ubuntu | eoan | * |
| Node-handlebars | Ubuntu | trusty | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/1.html
- https://cwe.mitre.org/data/definitions/180.html
- https://cwe.mitre.org/data/definitions/77.html