{"id":323,"date":"2021-12-10T10:37:40","date_gmt":"2021-12-10T02:37:40","guid":{"rendered":"http:\/\/101.34.19.194\/?p=323"},"modified":"2021-12-10T10:37:42","modified_gmt":"2021-12-10T02:37:42","slug":"unctf2021-misc","status":"publish","type":"post","link":"http:\/\/101.34.19.194\/?p=323","title":{"rendered":"UNCTF2021-Misc"},"content":{"rendered":"\n

\u7b80\u5355\u65e5\u5fd7\u5ba1\u8ba1<\/h2>\n\n\n\n

\u4e0b\u8f7d\u9644\u4ef6\u5f97\u5230\u4e00\u4e2a\u65e5\u5fd7\u6587\u4ef6<\/p>\n\n\n\n

\"image-20211210083955473\"\/<\/div><\/figure>\n\n\n\n

\u7b80\u5355\u6d4f\u89c8\uff0c\u53d1\u73b0\u6709\u4e24\u6bb5base64\u7f16\u7801\uff0c\u5176\u4e2d\u7b2c\u4e8c\u6bb5\u89e3\u7801\u5f97\u5230flag<\/p>\n\n\n\n

\"image-20211210084240234\"\/<\/div><\/figure>\n\n\n\n
\"image-20211210084301400\"\/<\/div><\/figure>\n\n\n\n

UNCTF{CTF?YouShouJiuXing}<\/code><\/p>\n\n\n\n

\u7535\u4fe1\u8bc8\u9a97<\/h2>\n\n\n\n

\u9898\u76ee\u7ed9\u51fa\u4e00\u6bb5\u7f16\u7801\uff1aqi]m^roVibdVbXUU`h<\/strong><\/p>\n\n\n\n

\u5f53\u65f6\u89e3\u4e0d\u51fa\u6765\uff0c\u540e\u6765\u53d1\u73b0\u662f\u53d8\u5f02\u51ef\u6492<\/p>\n\n\n\n

\u5728\u5bc6\u7801\u5b66\u4e2d\uff0c\u51ef\u6492\u5bc6\u7801\uff08\u82f1\u8bed\uff1aCaesar cipher\uff09\uff0c\u6216\u79f0\u51ef\u6492\u52a0\u5bc6\u3001\u51ef\u6492\u53d8\u6362\u3001\u53d8\u6362\u52a0\u5bc6\uff0c\u662f\u4e00\u79cd\u6700\u7b80\u5355\u4e14\u6700\u5e7f\u4e3a\u4eba\u77e5\u7684\u52a0\u5bc6\u6280\u672f\u3002\u5b83\u662f\u4e00\u79cd\u66ff\u6362\u52a0\u5bc6\u7684\u6280\u672f\uff0c\u660e\u6587\u4e2d\u7684\u6240\u6709\u5b57\u6bcd\u90fd\u5728\u5b57\u6bcd\u8868\u4e0a\u5411\u540e\uff08\u6216\u5411\u524d\uff09\u6309\u7167\u4e00\u4e2a\u56fa\u5b9a\u6570\u76ee\u8fdb\u884c\u504f\u79fb\u540e\u88ab\u66ff\u6362\u6210\u5bc6\u6587\u3002\u4f8b\u5982\uff0c\u5f53\u504f\u79fb\u91cf\u662f3\u7684\u65f6\u5019\uff0c\u6240\u6709\u7684\u5b57\u6bcdA\u5c06\u88ab\u66ff\u6362\u6210D\uff0cB\u53d8\u6210E\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/p><\/blockquote>\n\n\n\n

\u800c\u8fd9\u6bb5\u5b57\u7b26\uff0c\u9664\u4e86\u6709\u5b57\u6bcd\u8fd8\u6709\u5404\u79cd\u7b26\u53f7\uff0c\u6240\u4ee5\u4e0d\u662f\u7528\u7684\u5b57\u6bcd\u8868\u8fdb\u884c\u7684\u66ff\u6362\u52a0\u5bc6\uff0c\u5f88\u6709\u53ef\u80fd\u662f\u7528\u7684ASCII\u7801\u8868<\/p>\n\n\n\n

\u800c\u6211\u4eec\u4ece\u524d\u9762\u77e5\u9053flag\u683c\u5f0f\u662functf<\/code>\uff0c\u6240\u4ee5\u6211\u4eec\u5bf9\u7167\u524d\u9762\u51e0\u4e2a\u5b57\u7b26\u5c31\u77e5\u9053\u504f\u79fb\u91cf<\/p>\n\n\n\n

\"image-20211210085116347\"\/<\/div><\/figure>\n\n\n\n

\u53ef\u4ee5\u770b\u5230\uff0cASCII\u7801\u504f\u79fb\u91cf\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e3a4\uff0c\u7b2c\u4e8c\u4e2a\u4e3a5\uff0c\u4f9d\u6b21\u7c7b\u63a8\u4e3a4+i<\/code><\/p>\n\n\n\n

\u81f3\u6b64\u4fee\u6539\u53d8\u5f02\u51ef\u6492\u811a\u672c<\/p>\n\n\n\n

s = 'qi]m^roVibdVbXUU`h'
for i in range(len(s)):
    print(chr(ord(s[i]) +4+i),end='')<\/code><\/pre>\n\n\n\n
flag\uff1aunctf{yauoreright}<\/code><\/p>\n\n\n\n
\u5f15\u5927\u6d41\u54af\uff0chappy<\/h2>\n\n\n\n
\u4e0b\u8f7d\u9644\u4ef6\u662f\u4e00\u5f20jpg\u56fe\u7247\uff0c\u5404\u79cd\u9690\u5199\u5de5\u5177\u7528\u4e0a\u4e5f\u6ca1\u5f97\u51fa\u4ec0\u4e48<\/p>\n\n\n\n
\u540e\u6765\u53d1\u73b0\u662f\u4fee\u6539\u9ad8\u5ea6\uff08\u6da8\u59ff\u52bf\u4e86\uff0c\u6ca1\u6539\u8fc7jpg\u9ad8\u5ea6\uff09<\/p>\n\n\n\n
\"image-20211210085512086\"\/<\/div><\/figure>\n\n\n\n
jpg\u56fe\u7247\u57fa\u672c\u4fe1\u606f\u5728FF C0<\/code>\u540e\uff0c\u7528010editor\u6709jpg\u683c\u5f0f\u6a21\u677f\uff0cWORD Y_image<\/code>\u662f\u56fe\u7247\u9ad8\u5ea6\uff0cWORD X_image<\/code>\u662f\u56fe\u7247\u5bbd\u5ea6\uff0c\u968f\u610f\u4fee\u6539\u9ad8\u5ea6\u4e3a2000\uff0c\u770b\u5230flag<\/p>\n\n\n\n
\"image-20211210085725808\"\/<\/div><\/figure>\n\n\n\n
flag\uff1aUNCTF{BellalaBella}<\/code><\/p>\n\n\n\n
LPL<\/h2>\n\n\n\n
\u89e3\u538b\u5f97\u5230\u4e00\u5f20\u56fe\u7247\u548c\u538b\u7f29\u5305\uff0c\u5176\u4e2d\u538b\u7f29\u5305\u542b\u6709\u5bc6\u7801<\/p>\n\n\n\n
\u5c06\u56fe\u7247\u62c9\u8fdb010editor\uff0c\u53d1\u73b0CRC\u6821\u9a8c\u9519\u8bef<\/p>\n\n\n\n
\u5c06\u9519\u8bef\u8f93\u51fa\u7684\u503c\u8fdb\u884chex\uff0c\u5f97\u5230\u89e3\u538b\u5bc6\u7801<\/p>\n\n\n\n
\"image-20211210093814913\"\/<\/div><\/figure>\n\n\n\n
\u5c064544476e622121<\/code>\u8fdb\u884chex\u8f6c\u6362\uff0c\u5f97\u5230EDGnb!!<\/code><\/p>\n\n\n\n
\"image-20211210093958464\"\/<\/div><\/figure>\n\n\n\n
\u538b\u7f29\u5305\u91cc\u6709\u6587\u672c\u548c\u56fe\u7247\uff0c\u6587\u672c\u662f\u54d4\u54e9\u54d4\u54e9\u89c6\u9891\u94fe\u63a5\uff0c\u56fe\u7247\u662f\u65f6\u95f4<\/p>\n\n\n\n
\"image-20211210094156405\"\/<\/div><\/figure>\n\n\n\n
\u4e00\u76f4\u5f80\u4e0b\u7ffb\uff0c\u7ffb\u9ebb\u4e86<\/p>\n\n\n\n
\"image-20211210094531733\"\/<\/div><\/figure>\n\n\n\n
flag\uff1aflag{LpL_zgbr_rNg_eDg777}<\/code><\/p>\n\n\n\n
\u5012\u7acb\u6d17\u5934<\/h2>\n\n\n\n
\u6253\u5f00\u9644\u4ef6\u6587\u672c\u662f\u4e00\u6bb5\u5b57\u7b26\uff0c\u201c\u5012\u7acb\u6d17\u5934\u201d\u60f3\u5230\u662f\u8fdb\u884c\u53cd\u8f6c\uff0c\u4e8e\u662f\u8df3\u5230\u6700\u540e\u770b\u5b57\u7b26<\/p>\n\n\n\n
\"image-20211210100830863\"\/<\/div><\/figure>\n\n\n\n
\u6709\u70b9\u50cfjpg\u6587\u4ef6\u5f00\u5934FFD8FF<\/code>\uff0c\u5e94\u8be5\u88ab\u7be1\u6539\u8fc7\uff0c\u770b\u56de\u5f00\u5934\uff0c\u53cd\u8f6c\u7684FFD9<\/code>\uff0c\u611f\u89c9\u50cf\u662fjpg\uff0c\u5c06ffd8<\/code>\u6539\u6210d8ff<\/code>\uff0c\u7528notepad++\u5de5\u5177\u5c06hex\u8f6c\u6210ASCII\uff0c\u7528\u811a\u672c\u53cd\u8f6c\u5199\u5165jpg<\/p>\n\n\n\n
open('flag.jpg','wb').write(open('key.txt','rb').read()[::-1])<\/code><\/pre>\n\n\n\n
\u6253\u5f00\u56fe\u7247\uff0c\u53d1\u73b0\u6700\u4e0a\u9762\u6709\u4e00\u6761\u5947\u602a\u7684\u6a2a\u7ebf<\/p>\n\n\n\n
\"image-20211210101543247\"\/<\/div><\/figure>\n\n\n\n
\u7528010editor\u6253\u5f00\uff0c\u53d1\u73b0data\u6bb5\u6709\u4e00\u6bb5base64\u7f16\u7801<\/p>\n\n\n\n
\"image-20211210101722319\"\/<\/div><\/figure>\n\n\n\n
\u7c98\u8d34\u53bb\u89e3\u7801\uff0c\u53d1\u73b0\u662f\u4f5b\u66f0\u7f16\u7801\uff0c\u628a\u4f5b\u65e5<\/code>\u6539\u6210\u4f5b\u66f0<\/code>\u53bb\u89e3\u7801\u5f97\u5230flag<\/p>\n\n\n\n
\"image-20211210101849665\"\/<\/div><\/figure>\n\n\n\n
flag\uff1aunctf{it_is_easy_right?}<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"
\u7b80\u5355\u65e5\u5fd7\u5ba1\u8ba1 \u4e0b\u8f7d\u9644\u4ef6\u5f97\u5230\u4e00\u4e2a\u65e5\u5fd7\u6587\u4ef6 \u7b80\u5355\u6d4f\u89c8\uff0c\u53d1\u73b0\u6709\u4e24\u6bb5base64\u7f16\u7801\uff0c\u5176\u4e2d\u7b2c\u4e8c\u6bb5\u89e3\u7801\u5f97\u5230flag UN […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[],"_links":{"self":[{"href":"http:\/\/101.34.19.194\/index.php?rest_route=\/wp\/v2\/posts\/323"}],"collection":[{"href":"http:\/\/101.34.19.194\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/101.34.19.194\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/101.34.19.194\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/101.34.19.194\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=323"}],"version-history":[{"count":1,"href":"http:\/\/101.34.19.194\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions"}],"predecessor-version":[{"id":324,"href":"http:\/\/101.34.19.194\/index.php?rest_route=\/wp\/v2\/posts\/323\/revisions\/324"}],"wp:attachment":[{"href":"http:\/\/101.34.19.194\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/101.34.19.194\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=323"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/101.34.19.194\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}