CVE-2015-0802 — AI Deep Analysis Summary

🚨 **Essence**: A permission control flaw in Mozilla Firefox. 📉 **Consequences**: Remote attackers can execute arbitrary JavaScript code with **Chrome privileges** via specific content navigation.…

🛡️ **Root Cause**: The program incorrectly controls **Window.webidl** access permissions based on **docshell type information**. This logic error allows unauthorized access to privileged interfaces.

📦 **Affected**: Mozilla Firefox versions **36.0.4 and earlier**. 🌐 **Component**: The core browser engine handling docshell and webidl permissions.

💀 **Attacker Actions**: Execute **arbitrary JavaScript** with **Chrome privileges**. This means full control over the browser's internal functions, bypassing standard web sandbox restrictions.

⚡ **Exploitation Threshold**: **Low**. It is a **remote** vulnerability. No authentication or complex local configuration is needed. Attackers just need to lure users to specific content navigation.

🔍 **Public Exploit**: The provided data lists **no public PoC or exploit code** (pocs array is empty). However, vendor advisories confirm the vulnerability exists and is actionable.

🔎 **Self-Check**: Check your Firefox version. If it is **≤ 36.0.4**, you are vulnerable. Use browser update checks or vulnerability scanners that detect specific Firefox version strings.

✅ **Official Fix**: **Yes**. Mozilla released security announcements (MFSA2015-42) and vendors like Ubuntu (USN-2550-1) and openSUSE provided patches. Update immediately.

🚧 **No Patch Workaround**: If you cannot update, **disable JavaScript** or use a different, updated browser. Avoid clicking unknown links or visiting untrusted sites that might trigger content navigation.

🔥 **Urgency**: **HIGH**. Since it allows **remote code execution** with high privileges (Chrome level) and requires no user interaction beyond clicking a link, it is critical to patch immediately.