NSSCTF 1zjs

开启环境:

 搞就完事了,别玩魔法!

源码打开

点击访问:./dist/index.umd.js" 

搜索php,找到23条相关的,注意到有一个特别的信息:

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访问:

node4.anna.nssctf.cn:28325/f@k3f1ag.php

得到这样:

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!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[]+[+!+[]]+[]+[+!+[]]+[]+[!+[]+!+[]]+[]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[]+(!![]+[])[!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[]+[!+[]+!+[]+!+[]]+[]+[!+[]+!+[]+!+[]+!+[]]+[]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(![]+[])[!+[]+!+[]]]+[])[(![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(![]+[])[!+[]+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]]((+((+(+!+[]+[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+[!+[]+!+[]]+[+[]])+[])[+!+[]]+[+[]+[+[]]+[+[]]+[+[]]+[+[]]+[+[]]+[+[]]+[+[]]+[+[]]+[+!+[]]])+[])[!+[]+!+[]]+[+!+[]])

通过查询是通过 JSFuck解码解决,去解密网站解密:

NSSCTF{7[]3[]ff7[]e0[]2[]-c2[]6[]1[]-4[]9[]cc-9[]dca-3[]1[]a9[]1[]1[]2[]6[]e8[]3[]4[]}

去中括号就可以了. 

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