WebExtensions can use request redirection and a filterReponseData filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.
Weakness
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ubuntu_linux | Canonical | 14.04 (including) | 14.04 (including) |
| Ubuntu_linux | Canonical | 16.04 (including) | 16.04 (including) |
| Ubuntu_linux | Canonical | 17.10 (including) | 17.10 (including) |
| Ubuntu_linux | Canonical | 18.04 (including) | 18.04 (including) |
| Firefox | Ubuntu | artful | * |
| Firefox | Ubuntu | bionic | * |
| Firefox | Ubuntu | devel | * |
| Firefox | Ubuntu | trusty | * |
| Firefox | Ubuntu | upstream | * |
| Firefox | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/122.html
- https://cwe.mitre.org/data/definitions/233.html
- https://cwe.mitre.org/data/definitions/58.html
References
- http://www.securityfocus.com/bid/104139
- http://www.securitytracker.com/id/1040896
- https://bugzilla.mozilla.org/show_bug.cgi?id=1437325
- https://usn.ubuntu.com/3645-1/
- https://www.mozilla.org/security/advisories/mfsa2018-11/
- http://www.securityfocus.com/bid/104139
- http://www.securitytracker.com/id/1040896
- https://bugzilla.mozilla.org/show_bug.cgi?id=1437325
- https://usn.ubuntu.com/3645-1/
- https://www.mozilla.org/security/advisories/mfsa2018-11/