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不定期的にCTF、脆弱性検証、バグバウンティレポート分析など、情報セキュリティを中心とした技術ブログを更新します。

2019-05-01から1ヶ月間の記事一覧

ブラウザの仕組み(詳細)

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A note for reading 'Mastering Modern Web Penetration Testing', Chapter 1

Web

Chapter 1 SOP(Same-origin policy) Explanation by Wikipedia: In computing, the same-origin policy is an important concept in the web application security model. Under the policy, a web browser permits scripts contained in a first web page t…

A note for reading 'Practical Malware Analysis', Chapter 0

* Chapter 0 The Goals of Malware Analysis: Providing the information we need to respond to a network intrusion. Malware analysis can be used to develop host-based and network signatures. Host-based signatures They are used to detect malici…

XSS Mindmap

Source: AwesomeXSS/Database at master · s0md3v/AwesomeXSS · GitHub Payload: * polyglot: gist.github.com

Bash Tips

(1) $'hello kitty\n' $input: echo $'hello kitty\n' $output: hello kitty $input: echo 'hello kitty\n' $output: hello kitty\n $input: echo $'\x6a\x0b\x58\x99\x52\x66\x68\x2d\x70\x89\xe1\x52 \x6a\x68\x68\x2f\x62\x61\x73\x68\x2f\x62\x69\x6e\x8…

Oops! Your important files are removed by yourself! -> Here is the solution ( File Recovery in linux)

Situation( It is a fiction ): Today's topic is, 'Oops, Your Important Files Are Encrypted!' Ransomeware? No! As ransomeware is dangerous, we can use some anti-virus software to protect files, but sometimes we can remove important files by …

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