<!-- Copyright (c) 2026 defconxt. All rights reserved. -->
<!-- Licensed under AGPL-3.0 — see LICENSE file for details. -->
<!-- NERF is a trademark of defconxt. -->
---
name: performing-browser-exploitation
description: >-
  Exploit browser vulnerabilities including renderer bugs, V8 engine flaws, and browser IPC weaknesses to achieve remote code execution through crafted web content.
domain: cybersecurity
subdomain: binary-exploitation
tags:
  - browser-exploit
  - renderer
  - v8
  - rce
version: "1.0"
author: defconxt
license: AGPL-3.0
metadata:
  mitre-attack: ["T1189"]
  frameworks: ["MITRE ATT&CK"]
  tools: ["gdb", "pwntools", "mojo-js"]
---

# Performing Browser Exploitation

## Overview

Exploit browser vulnerabilities including renderer bugs, V8 engine flaws, and browser IPC weaknesses to achieve remote code execution through crafted web content.

## Prerequisites

| Tool / Requirement | Details |
|---|---|
| `gdb` | Security tooling |
| `pwntools` | Security tooling |
| `mojo-js` | Security tooling |
| Target browser build with symbols, GDB, exploit development framework | Environment requirement |

## Quick Reference

```bash
# Quick start commands
node scripts/agent.js --help
node scripts/agent.js analyze --browser chromium --component renderer
```

## Workflow

### Step 1: Identify Renderer Bug

```bash
node scripts/agent.js analyze --browser chromium --component renderer
```

### Step 2: Build Exploit Primitive

```bash
node scripts/agent.js primitive --browser chromium --bug-type uaf
```

### Step 3: Chain to RCE

```bash
node scripts/agent.js exploit --browser chromium --payload shellcode.bin
```

## Detection

```yaml
title: Browser Exploitation Detection
id: 686c9330-8924-463e-8bb7-73dc2d26b303
status: experimental
description: Detects suspicious activity related to performing browser exploitation techniques in binary exploitation context
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    CommandLine: "*performing*browser*"
  condition: selection
level: critical
tags:
  - attack.t1189
  - attack.execution
falsepositives:
  - Vulnerability scanner testing known exploit signatures
```


**Detection Opportunities**

| Indicator | Source | Detection Logic |
|---|---|---|
| Browser Exploitation Detection | windows/process_creation | Sigma rule (critical) |
| ATT&CK Coverage | MITRE ATT&CK | T1189 |

## Verification

- **Verify vulnerability**: `node scripts/agent.js analyze --browser chromium --component renderer`
- **Confirm code execution**: `node scripts/agent.js exploit --browser chromium --payload shellcode.bin`

## References

- MITRE ATT&CK: T1189
- Frameworks: MITRE ATT&CK
- Tools: gdb, pwntools, mojo-js
