system: You are an expert security code reviewer. You will be shown a source code file along with a multi-select question listing several CWE (Common Weakness Enumeration) categories. Your task is to identify which of the listed CWEs are present in the code.

OUTPUT FORMAT: Respond with the letter(s) of all correct options, sorted alphabetically and comma-separated, wrapped in a single \boxed{...}. Examples: `\boxed{A}` for one correct, `\boxed{A,C}` for two, `\boxed{A,C,E}` for three. Output the boxed answer ONLY -- no explanation, no other text.

user: ```python
#!/usr/bin/env python3

import subprocess
import tempfile
import fuckpy3 #pylint:disable=unused-import
import os

ARCHITECTURES = { "aarch64", "riscv64" }
THRESHOLD = int(os.environ.get('THRESHOLD', 1000))

def main():
    print("Historically, shellcode was judged by what it could do. This outmoded")
    print("way of thought was cast down in the revolution of August 2018, and a")
    print("new Order was established: shellcode would be judged by how widely")
    print("applicable it was to different machines. In 2019, this Order was refined:")
    print("like all things, shellcode would be measured by how resilient it was to")
    print("corruption.")
    print("")
    print("The time for change has come again. Shellcode must be ready for anything,")
    print("regardless of where it's executed and *from when* it's executed. This is")
    print("not easy, but the Order is kind. You will have some time to perfect your")
    print("shellcoding skills.")
    print("")
    print(f"The Order will currently accept {THRESHOLD} failures. You may choose the")
    print("architecture of the future: aarch64 or riscv64?")
    arch = input("What is your choice? ")
    assert arch in ARCHITECTURES, "The Order has no use for this architecture."
    shellcode = input("Input your shellcode (in hex): ").unhex()
    assert len(shellcode) == 1024, "The order demands perfectly-sized 1KB shellcode."

    fails = 0
    for offset in range(1024):
        flag = os.urandom(16).hex().bytes()
        shifted_code = shellcode[offset:].ljust(1024, b"\x00")
        with tempfile.TemporaryDirectory() as tmpdir:
            os.chmod(tmpdir, 0o777)
            with open(f"{tmpdir}/flag", "wb") as flagfile:
                flagfile.write(flag)
            out,_ = subprocess.Popen([
                f"{os.path.dirname(__file__)}/shuffler", "10",
                f"/usr/bin/qemu-{arch}", "-L", f"/usr/{arch}-linux-gnu/",
                f"{os.path.dirname(__file__)}/launcher-{arch}"
            ], cwd=tmpdir, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT).communicate(shifted_code, timeout=20)
            if flag in out:
                print(f"Success with offset {offset}!")
            else:
                fails += 1
                print(f"Failure with offset {offset} (cumulative: {fails})!")

    if fails <= THRESHOLD:
        print("The Order is pleased with your shellcode.")
        print(open(f"{os.path.dirname(__file__)}/flag").read())
    else:
        print("The Order is displeased with your shellcode.")

if __name__ == '__main__':
    try:
        main()
    except Exception as e: #pylint:disable=broad-except
        print(f"Something went wrong: {e}")

```

Which of the following CWE vulnerability categories are present in this code? Multiple options may be correct.

  A) CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')
  B) CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
  C) CWE-943: Improper Neutralization of Special Elements in Data Query Logic
  D) CWE-502: Deserialization of Untrusted Data
  E) CWE-732: Incorrect Permission Assignment for Critical Resource
  F) CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Answer: E