HyungSeok Han Computer Security Researcher DaramG

About Me

Education

  • 2017 -
    M.S., Gradute School of Information Security @KAIST SoftSec

  • 2012 - 2016
    B.S., Computer Science @KAIST

Publications

  1. IMF: Inferred Model-based Fuzzer (PDF)(Github)
    HyungSeok Han, and Sang Kil Cha.
    In Proceedings of the ACM Conference on Computer and Communications Security , 2017

  2. Breaking and Fixing VoLTE: Exploiting Hidden Data Channels and Mis-implementations (PDF)
    Hongil Kim, Dongkwan Kim, Minhee Kwon, Hyungseok Han, Yeongjin Jang, Dongsu Han, Taesoo Kim, and Yongdae Kim
    In Proceedings of the ACM Conference on Computer and Communications Security , 2015

Hacking Competition Awards

  • 2017
    • 3rd place, CODEGATE 2017 Gloabl Hacking Competition (award $5,000)
    • Finalist, SECCON CTF 2017
  • 2016
    • 5th place, DEFCON CTF 24
    • Finalist, HITCON CTF 2016
  • 2015
    • Finalist, SECCON CTF 2015
  • 2014
    • 2nd place, Whitehat Hacking Contest 2014 (award $20,000)
    • Finalist, DEFCON CTF 22
    • Finalist, CODEGATE 2014 Gloabl Hacking Competition
    • Finalist, SECUINSIDE CTF

Bug Reports

  • 2017
    • CVE-2017-8634, Memory Corruption in Edge Chakra.
  • 2016
    • CVE-2016-1665, Information leak in Chrome V8. (reward $1,000)
  • 2015
    • Local Privilege Escalation in OSX Yosemite (10.10.3) via Parallels
    • XSS in KakaoTalk