| Presentation | 2019-06-07 A Survey on the Risks of Bypassing Public Captive Portals through Covert Channels Hidetaka Masuda, Hideya Ochiai, Hiroshi Esaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Public Wi-Fi networks have spread to the world and is now an important infrastructure to us. However, there are many hotspots with insufficient security measures which have risks of being exploited. In order to prevent it, means of authentication such as captive portal have been introduced. Nevertheless, some captive portals have flaws in the authentication process and allows to send messages before authentication. These illegitimate messages are sent using "covert channel". We investigated 955 Public Wi-Fi hostpots in Tokyo and Kanagawa (1148 in accumulated total). As a result, 72.6% had the risk of being exploited using covert channels. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Public Wi-Fi / Cpative Portal / Covert Channel |
| Paper # | IA2019-9,ICSS2019-9 |
| Date of Issue | 2019-05-30 (IA, ICSS) |
| Conference Information | |
| Committee | IA / ICSS |
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| Conference Date | 2019/6/6(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Research Institute for Electrical Communication, Tohoku University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Internet Security, etc. |
| Chair | Hiroyuki Osaki(Kwansei Gakuin Univ.) / Hiroki Takakura(NII) |
| Vice Chair | Rei Atarashi(IIJ) / Toru Kondo(Hiroshima Univ.) / Hiroshi Yamamoto(Ritsumeikan Univ.) / Katsunari Yoshioka(Yokohama National Univ.) / Kazunori Kamiya(NTT) |
| Secretary | Rei Atarashi(Kwansei Gakuin Univ.) / Toru Kondo(KDDI Research) / Hiroshi Yamamoto(NEC) / Katsunari Yoshioka(NICT) / Kazunori Kamiya(KDDI labs.) |
| Assistant | Kenji Ohira(Tokushima Univ.) / Daiki Nobayashi(Kyushu Inst. of Tech.) / Ryohei Banno(Tokyo Inst. of Tech.) / Keisuke Kito(Mitsubishi Electric) / Toshihiro Yamauchi(Okayama Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Internet Architecture / Technical Committee on Information and Communication System Security |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Survey on the Risks of Bypassing Public Captive Portals through Covert Channels |
| Sub Title (in English) | |
| Keyword(1) | Public Wi-Fi |
| Keyword(2) | Cpative Portal |
| Keyword(3) | Covert Channel |
| 1st Author's Name | Hidetaka Masuda |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Hideya Ochiai |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| 3rd Author's Name | Hiroshi Esaki |
| 3rd Author's Affiliation | The University of Tokyo(UTokyo) |
| Date | 2019-06-07 |
| Paper # | IA2019-9,ICSS2019-9 |
| Volume (vol) | vol.119 |
| Number (no) | IA-69,ICSS-70 |
| Page | pp.pp.43-48(IA), pp.43-48(ICSS), |
| #Pages | 6 |
| Date of Issue | 2019-05-30 (IA, ICSS) |