H3 is a minimal H(TTP) framework. In versions 2.0.0-0 through 2.0.1-rc.16, the mount() method in h3 uses a simple startsWith() check to determine whether incoming requests fall under a mounted sub-applications path prefix. Because this check does not verify a path segment boundary (i.e., that the next character after the base is / or end-of-string), middleware registered on a mount like /admin will also execute for unrelated routes such as /admin-public, /administrator, or /adminstuff. This allows an attacker to trigger context-setting middleware on paths it was never intended to cover, potentially polluting request context with unintended privilege flags. Version 2.0.2-rc.17 contains a patch.
Weakness
The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| H3 | H3 | 2.0.1-rc1 (including) | 2.0.1-rc1 (including) |
| H3 | H3 | 2.0.1-rc10 (including) | 2.0.1-rc10 (including) |
| H3 | H3 | 2.0.1-rc11 (including) | 2.0.1-rc11 (including) |
| H3 | H3 | 2.0.1-rc12 (including) | 2.0.1-rc12 (including) |
| H3 | H3 | 2.0.1-rc13 (including) | 2.0.1-rc13 (including) |
| H3 | H3 | 2.0.1-rc14 (including) | 2.0.1-rc14 (including) |
| H3 | H3 | 2.0.1-rc15 (including) | 2.0.1-rc15 (including) |
| H3 | H3 | 2.0.1-rc16 (including) | 2.0.1-rc16 (including) |
| H3 | H3 | 2.0.1-rc2 (including) | 2.0.1-rc2 (including) |
| H3 | H3 | 2.0.1-rc3 (including) | 2.0.1-rc3 (including) |
| H3 | H3 | 2.0.1-rc4 (including) | 2.0.1-rc4 (including) |
| H3 | H3 | 2.0.1-rc5 (including) | 2.0.1-rc5 (including) |
| H3 | H3 | 2.0.1-rc6 (including) | 2.0.1-rc6 (including) |
| H3 | H3 | 2.0.1-rc7 (including) | 2.0.1-rc7 (including) |
| H3 | H3 | 2.0.1-rc8 (including) | 2.0.1-rc8 (including) |
| H3 | H3 | 2.0.1-rc9 (including) | 2.0.1-rc9 (including) |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/159.html
- https://cwe.mitre.org/data/definitions/177.html
- https://cwe.mitre.org/data/definitions/48.html
- https://cwe.mitre.org/data/definitions/641.html