If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the…
mozilla·CWE-281·Published 2018-06-11
If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.
If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.
Si un atacante malicioso ha utilizado otra vulnerabilidad para obtener control total sobre un proceso de contenido, es posible que pueda reemplazar los recursos de datos alternativos almacenados en el JSBC (JavaScript Start-up Bytecode Cache) por otro código JavaScript. Si el proceso padre ejecuta este código reemplazado, el script ejecutado se ejecutaría con los privilegios del proceso padre, escapando del sandbox en los procesos de contenido. Esta vulnerabilidad afecta a las versiones anteriores a la 60 de Firefox.
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 2.0 | Primary | NVD | 5.1 | 4.9 | 6.4 | AV:N/AC:H/Au:N/C:P/I:P/A:P |
| 3.0 | Primary | NVD | 8.1 | 2.2 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |