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- Added daisy.ns.cloudflare.com and rocco.ns.cloudflare.com to Cloudflare guide. - Unified domain name to lengkundee01.org in CNAME and PWA guide. - Verified active domain using dig. - Updated sentinel journal with documentation learnings.
972 B
972 B
Sentinel's Journal
2026-02-07 - Telegram Bot Authorization Bypass
Vulnerability: The Telegram Deployment Bot (scripts/telegram_deploy_bot.py) contained a "Fail Open" vulnerability where omitting the TELEGRAM_ALLOWED_USER_IDS environment variable resulted in granting access to all Telegram users instead of none.
Learning: Security controls must default to deny (Fail Closed). Implicitly allowing access when configuration is missing creates silent vulnerabilities that are hard to detect until exploited.
Prevention: Ensure all authorization checks explicitly return False or throw an exception if the access control list is empty or undefined. Never default to True in security-critical paths.
2026-02-13 - [Documentation] Cloudflare Nameservers and Domain Unification
- Updated Cloudflare nameservers to daisy.ns.cloudflare.com and rocco.ns.cloudflare.com.
- Unified domain name to lengkundee01.org across CNAME and PWA documentation.