AngstromCTF2017-供養
Angstrom CTF 2017にTeam:Harekazeとして参加していました。チーム総得点は905点。そのうちの60点を入れました。
[Forensic 60] Document
% binwalk essay.docx DECIMAL HEXADECIMAL DESCRIPTION -------------------------------------------------------------------------------- 279 0x117 Zip archive data, at least v2.0 to extract, compressed size: 936, uncompressed size: 2514, name: word/settings.xml 1262 0x4EE Zip archive data, at least v2.0 to extract, compressed size: 442, uncompressed size: 1277, name: word/fontTable.xml 1752 0x6D8 Zip archive data, at least v2.0 to extract, compressed size: 265, uncompressed size: 497, name: word/webSettings.xml 2067 0x813 Zip archive data, at least v2.0 to extract, compressed size: 308, uncompressed size: 669, name: docProps/app.xml 2685 0xA7D Zip archive data, at least v2.0 to extract, compressed size: 332, uncompressed size: 612, name: docProps/core.xml 3362 0xD22 Zip archive data, at least v2.0 to extract, compressed size: 2799, uncompressed size: 29158, name: word/styles.xml 6206 0x183E Zip archive data, at least v2.0 to extract, compressed size: 2432, uncompressed size: 19609, name: word/document2.xml 8714 0x220A Zip archive data, at least v2.0 to extract, compressed size: 232, uncompressed size: 836, name: word/_rels/document2.xml.rels
いろいろあるのでとりあえずextract
% binwalk -e essay.docx
extractした中のword/document2.xmlの中に普通にflagがあるのでsubmitして終わり(}が足りないので補充する)
actf{too_bad_for_zip_recovery}
最後
暗号問題をやりたくて参加したはずなのに、暗号問題を解けずして終わる不甲斐ない結果。 もっと精進せねば
multicastとwar gameはwriteupが出たら解き直す
