{"id":6249,"date":"2020-02-16T16:48:15","date_gmt":"2020-02-16T07:48:15","guid":{"rendered":"http:\/\/takuyakobayashi.jp\/blog\/?p=6249"},"modified":"2024-10-21T10:20:44","modified_gmt":"2024-10-21T01:20:44","slug":"john-the-ripper%e3%81%a7linux%e3%82%a2%e3%82%ab%e3%82%a6%e3%83%b3%e3%83%88%e3%83%91%e3%82%b9%e3%83%af%e3%83%bc%e3%83%89%e3%82%92%e8%a7%a3%e8%aa%ad%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/takuyakobayashi.jp\/blog\/2020\/02\/16\/6249","title":{"rendered":"John the Ripper\u3067Linux\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u89e3\u8aad\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n

Linux\u306f\u5168\u30e6\u30fc\u30b6\u30fc\u306b\u95b2\u89a7\u6a29\u9650\u306e\u3042\u308b\uff0fetc\uff0fpasswd\u306b\u30ed\u30b0\u30a4\u30f3\u60c5\u5831\u304c\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

(\u30b9\u30e9\u30c3\u30b7\u30e5\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u90fd\u5408\u4e0a\u3001\u5168\u89d2\u3067\u8868\u8a18\u3057\u3066\u3044\u307e\u3059)<\/p>\n\n\n\n

\u5927\u6614\u306f\u540c\u30d5\u30a1\u30a4\u30eb\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3082\u66f8\u3044\u3066\u3042\u308b\u6642\u4ee3\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u30b7\u30e3\u30c9\u30a6\u30d1\u30b9\u30ef\u30fc\u30c9<\/a>\u3068\u547c\u3070\u308c\u308b\uff0fetc\uff0fpasswd\u3068\u306f\u5225\u306b\uff0fetc\uff0fshadow\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3092\u4fdd\u5b58\u3059\u308b\u3068\u3044\u3046\u5f62\u3092\u53d6\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u3061\u306a\u307f\u306b\u30b7\u30e3\u30c9\u30a6\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u6709\u52b9\u5316\u30fb\u7121\u52b9\u5316\u3059\u308b\u30b3\u30de\u30f3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002
\n\uff08\u304a\u305d\u3089\u304f\u4f7f\u308f\u306a\u3044\u3067\u3057\u3087\u3046\u3051\u3069\uff09
\n\u30b7\u30e3\u30c9\u30a6\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u6709\u52b9\u5316: pwconv<\/strong>
\n\u30b7\u30e3\u30c9\u30a6\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u7121\u52b9\u5316: pwunconv<\/strong><\/p>\n\n\n\n

john the ripper\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n\n\n\n

apt\u30b3\u30de\u30f3\u30c9\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

sudo apt update && sudo apt install john<\/code><\/p>\n\n\n\n

\u30d1\u30b9\u30ef\u30fc\u30c9\u89e3\u8aad\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4f5c\u6210<\/h2>\n\n\n\n

\u30d1\u30b9\u30ef\u30fc\u30c9\u89e3\u8aad\u306e\u30c7\u30e2\u30f3\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u306a\u306e\u3067\u3001\u3042\u3048\u3066\u30ac\u30d0\u30ac\u30d0\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u3067\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

sudo useradd testuser
\nsudo passwd testuser
\n\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\uff1atest\uff09<\/code><\/p>\n\n\n\n

ID: testuser PW: test\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\uff0fetc\uff0fshadow\u3092\u89e3\u8aad<\/h2>\n\n\n\n

\uff0fetc\uff0fshadow\u304b\u3089\u89e3\u8aad\u3057\u305f\u3044\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u884c\u3092\u51fa\u529b\u3055\u305b\u307e\u3059\u3002\u5148\u307b\u3069\u65b0\u898f\u8ffd\u52a0\u3057\u305f\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u89e3\u8aad\u3059\u308b\u305f\u3081\u300ctail -1\u300d\u3067\u4e00\u756a\u4e0b\u306e\u884c\u3092\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

sudo tail -1 \uff0fetc\uff0fshadow > <\/code>passwd<\/code><\/p>\n\n\n\n

\u6b21\u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u304c\u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306epasswd\u30d5\u30a1\u30a4\u30eb\u306b\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

testuser:$6$JwHz7UVh$3hAf\/Gs7\/KT7C49PfTQwPdlLBCLBOv2uUoGAYpA2SzJYX2zzlgQ2SaERwOKHsCU\/.NK33HfiZwkCo6fQ9LmTl0:18308:0:99999:7:::<\/code><\/p>\n\n\n\n

john\u3067\u89e3\u8aad\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

john .\uff0fpasswd<\/code><\/p>\n\n\n

\n
\"\"<\/figure><\/div>\n\n\n

\u4e00\u77ac\u3067\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u300ctest<\/strong>\u300d\u3068\u51fa\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u89e3\u8aad\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306fsingle\u3001wordlist(\u30c7\u30d5\u30a9\u30eb\u30c8:\/usr\/share\/john\/password.lst)\u3001inclimental\u306e\u9806\u3067\u5b9f\u884c\u3055\u308c\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n

\u8f9e\u66f8\u30d5\u30a1\u30a4\u30eb\u306b\u8f09\u3063\u3066\u3044\u308b\u3088\u3046\u306a\u5358\u8a9e\u3067\u3042\u308c\u3070\u3001\u3053\u306e\u901a\u308a\u4e00\u77ac\u3067\u89e3\u8aad\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u3061\u306a\u307f\u306b\u74b0\u5883\u306b\u3088\u3063\u3066\u306f\u300cNo password hashes loaded (see FAQ)\u300d\u3068\u8868\u793a\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308b\u306e\u3067\u3001\u305d\u306e\u969b\u306f\u6b21\u306e\u3088\u3046\u306b\u300c–format=crypt\u300d\u3092\u6307\u5b9a\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002
john passwd –format=crypt<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Linux\u306f\u5168\u30e6\u30fc\u30b6\u30fc\u306b\u95b2\u89a7\u6a29\u9650\u306e\u3042\u308b\uff0fetc\uff0fpasswd\u306b\u30ed\u30b0\u30a4\u30f3\u60c5\u5831\u304c\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002 (\u30b9\u30e9\u30c3\u30b7\u30e5\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u90fd\u5408\u4e0a\u3001\u5168\u89d2\u3067\u8868\u8a18\u3057\u3066\u3044\u307e\u3059) \u5927\u6614\u306f\u540c\u30d5\u30a1\u30a4\u30eb\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u3082\u66f8\u3044\u3066\u3042\u308b\u6642\u4ee3\u304c\u3042\u308a\u307e\u3057\u305f\u304c … \u7d9a\u304d\u3092\u8aad\u3080 John the Ripper\u3067Linux\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u89e3\u8aad\u3059\u308b\u65b9\u6cd5<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":6250,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-6249","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tips"],"_links":{"self":[{"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/posts\/6249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/comments?post=6249"}],"version-history":[{"count":0,"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/posts\/6249\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/media\/6250"}],"wp:attachment":[{"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/media?parent=6249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/categories?post=6249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/takuyakobayashi.jp\/blog\/wp-json\/wp\/v2\/tags?post=6249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}