https://basilisk13.sakawatkabir.me CTF write-ups, CVE briefs, and notes from hands-on security labs, defensive research, and systems engineering. en-us https://basilisk13.sakawatkabir.me/blog/dns-spoofing-lab https://basilisk13.sakawatkabir.me/blog/dns-spoofing-lab Wed, 12 Aug 2026 00:00:00 GMT Notes from building a custom DNS spoofer in an isolated lab. What I learned about why DNS is the protocol we love to break. writeup https://basilisk13.sakawatkabir.me/blog/cve-2025-0282-ivanti https://basilisk13.sakawatkabir.me/blog/cve-2025-0282-ivanti Sat, 08 Aug 2026 00:00:00 GMT A concise breakdown of a pre-auth stack-based buffer overflow affecting legacy VPN gateways — including its impact, affected deployments, and mitigations. cve