# Security POC Test Results

## Executive Summary

This report contains the results of proof-of-concept tests demonstrating 
vulnerabilities identified in the nanobot security audit.

## Test Environment

- **Date:** Wed Feb  4 02:09:54 UTC 2026
- **Platform:** Docker containers (Python 3.11)
- **Target:** nanobot application

## Vulnerability 1: Shell Command Injection

**Severity:** MEDIUM  
**Location:** `nanobot/agent/tools/shell.py`

### Description
The shell tool uses `asyncio.create_subprocess_shell()` which passes commands 
directly to the shell. While a regex pattern blocks some dangerous commands, 
many bypass techniques exist.

### POC Results
See: `results/shell_injection_results.json`

### Bypasses Demonstrated
- Command substitution: `$(cat /etc/passwd)`
- Base64 encoding: `echo BASE64 | base64 -d | bash`
- Alternative interpreters: `python3 -c 'import os; ...'`
- Environment exfiltration: `env | grep KEY`

### Recommended Mitigations
1. Use `create_subprocess_exec()` instead of shell execution
2. Implement command whitelisting
3. Run in isolated container with minimal permissions
4. Use seccomp/AppArmor profiles

---

## Vulnerability 2: Path Traversal / Unrestricted File Access

**Severity:** MEDIUM  
**Location:** `nanobot/agent/tools/filesystem.py`

### Description
The `_validate_path()` function supports a `base_dir` parameter for restricting 
file access, but this parameter is never passed by any of the file tools, 
allowing unrestricted file system access.

### POC Results
See: `results/path_traversal_results.json`

### Access Demonstrated
- Read `/etc/passwd` - user enumeration
- Read environment variables via `/proc/self/environ`
- Write files to `/tmp` and other writable locations
- List any directory on the system

### Recommended Mitigations
1. Always pass `base_dir` parameter with workspace path
2. Add additional path validation (no symlink following)
3. Run with minimal filesystem permissions
4. Use read-only mounts for sensitive directories

---

## Vulnerability 3: LiteLLM Remote Code Execution (CVE-2024-XXXX)

**Severity:** CRITICAL  
**Affected Versions:** litellm <= 1.28.11 and < 1.40.16

### Description
Multiple vulnerabilities in litellm allow Remote Code Execution through:
- Unsafe use of `eval()` on user-controlled input
- Template injection in string processing
- Unsafe callback handler processing
- Server-Side Template Injection (SSTI)

### POC Results
See: `results/litellm_rce_results.json`

### Impact
- Arbitrary code execution on the server
- Access to environment variables (API keys, secrets)
- Full file system access
- Potential for reverse shell and lateral movement

### Recommended Mitigations
1. Upgrade litellm to >= 1.61.15 (latest stable)
2. Pin to specific patched version in requirements
3. Run in isolated container environment
4. Implement network egress filtering

---

## Dependency Vulnerabilities

### litellm (Current: >=1.61.15)
- Multiple CVEs in versions < 1.40.16 (RCE, SSRF)
- Current version appears patched
- **Recommendation:** Pin to specific patched version

### ws (WebSocket) (Current: ^8.17.1)
- DoS vulnerability in versions < 8.17.1
- Current version appears patched
- **Recommendation:** Pin to specific patched version

---

## Conclusion

The POC tests confirm that the identified vulnerabilities are exploitable. 
While some mitigations exist (pattern blocking, timeouts), they can be bypassed.

### Priority Recommendations

1. **CRITICAL:** Ensure litellm is upgraded to patched version
2. **HIGH:** Implement proper input validation for shell commands
3. **HIGH:** Enforce base_dir restriction for all file operations
4. **MEDIUM:** Pin dependency versions to known-good releases
5. **LOW:** Add rate limiting to authentication