{"id":528,"date":"2014-06-26T14:57:02","date_gmt":"2014-06-26T06:57:02","guid":{"rendered":"http:\/\/www.kiccleaf.com\/?p=528"},"modified":"2014-06-26T15:00:14","modified_gmt":"2014-06-26T07:00:14","slug":"freebsd%e4%b8%8b%e6%9b%b4%e6%94%b9csh%e4%b8%babash%e5%90%8eroot%e6%97%a0%e6%b3%95%e7%99%bb%e5%bd%95%e8%a7%a3%e5%86%b3%e5%8a%9e%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.kiccleaf.com\/?p=528","title":{"rendered":"FreeBSD\u4e0b\u66f4\u6539csh\u4e3abash\u540eroot\u65e0\u6cd5\u767b\u5f55\u89e3\u51b3\u529e\u6cd5"},"content":{"rendered":"<p>FreeBSD\u4e0b\u4e3a\u4e86\u5224\u65ad\u4e00\u4e2a\u8fdb\u7a0b\u662f\u5426\u5b58\u5728\uff0c\u6267\u884c\u4e86chsh -s \/bin\/bash\u547d\u4ee4\uff0c\u4e0d\u5de7\u7684\u662f\u521a\u597d\u65ad\u7ebf\uff0c\u4e8e\u662f\u518d\u6b21\u94fe\u63a5\u65f6\u6ca1\u529e\u6cd5su root\u8fdb\u53bb\u7ba1\u7406\u6743\u9650\u4e86\u3002\u53ef\u60b2\u7684\u4e8b\u60c5\uff0c\u53ea\u597d\u8bf7\u673a\u623f\u6765\u5e2e\u5fd9\u64cd\u4f5c\u3002<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nchsh -s \/bin\/bash\r\n<\/pre>\n<p>\u67e5\u770b\/etc\/passwd\u5185\u5bb9\u65f6\u53d1\u73b0<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nroot:*:0:0:Charlie &amp;:\/root:\/bin\/bash\r\n\u8fd9\u4e00\u53e5\u88ab\u6539\u4e86\r\n\u539f\u6765\u662f\r\nroot:*:0:0:Charlie &amp;:\/root:\/bin\/csh\r\n<\/pre>\n<p>\u5229\u7528cat\u547d\u4ee4\u67e5\u770b\/etc\/passwd<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nkiccleaf# cat \/etc\/passwd\r\n# $FreeBSD: src\/etc\/master.passwd,v 1.40.22.2.2.1 2012\/03\/03 06:15:13 kensmith Exp $\r\n#\r\nroot:*:0:0:Charlie &amp;:\/root:\/bin\/bash\r\n<\/pre>\n<p>\u539f\u6765\u7684\u5185\u5bb9\u662f\uff1a<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nkiccleaf# cat \/etc\/passwd\r\n# $FreeBSD: src\/etc\/master.passwd,v 1.40.22.2.2.1 2012\/03\/03 06:15:13 kensmith Exp $\r\n#\r\nroot:*:0:0:Charlie &amp;:\/root:\/bin\/csh\r\n<\/pre>\n<p>\u7ed3\u679cFreeBSD\u7684\/bin\/\u76ee\u5f55\u4e0b\u5e76\u6ca1\u6709bash\u8fd9\u4e2a\u547d\u4ee4\u5b58\u5728\uff0c\u4e8e\u662f\u767b\u5f55\u65f6\u9519\u8bef\u63d0\u793a\uff1a<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nlogin:\/bin\/bash:No such file or directory\r\n<\/pre>\n<p>\u628aroot\u7684shell\u6539\u6210\u4e86bash\uff0c\u800c\u5bfc\u81f4\u8fdb\u4e0d\u53bb\u7cfb\u7edf\u4e86\uff0c\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\u89e3\u51b3\uff1a<\/p>\n<p>\u7cfb\u7edf\u542f\u52a8\u65f6\uff0c\u9009\u62e9\u201c4\u201d\uff0c\u8fdb\u5165\u201c\u5355\u7528\u6237\u201d\u6a21\u5f0f\uff0c\u8f93\u5165\u201cboot -s\u201d\u8fdb\u5165\u5355\u7528\u6237\u7684\u63d0\u793a\u7b26\u201c\uff03\u201d\uff0c\u4f9d\u6b21\u952e\u5165\u5982\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n\u3000\u3000fsck -p\r\n\u3000\u3000mount -u \/\r\n\u3000\u3000mount -a -t ufs\r\n\u3000\u3000swapon -a\r\n\u3000\u3000chsh -s \/bin\/csh\r\n<\/pre>\n<p>\u7136\u540e\u5c31\u91cd\u542f\u7cfb\u7edf\u5427\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u91cd\u65b0\u767b\u5f55root\u7ba1\u7406\u5e10\u53f7\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>FreeBSD\u4e0b\u4e3a\u4e86\u5224\u65ad\u4e00\u4e2a\u8fdb\u7a0b\u662f\u5426\u5b58\u5728\uff0c\u6267\u884c\u4e86c&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"http:\/\/www.kiccleaf.com\/?p=528\">Continue reading<span class=\"screen-reader-text\">FreeBSD\u4e0b\u66f4\u6539csh\u4e3abash\u540eroot\u65e0\u6cd5\u767b\u5f55\u89e3\u51b3\u529e\u6cd5<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":7,"footnotes":""},"categories":[6],"tags":[8,37],"class_list":["post-528","post","type-post","status-publish","format-standard","hentry","category-freebsd","tag-freebsd","tag-37","entry"],"views":7663,"_links":{"self":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=528"}],"version-history":[{"count":2,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/528\/revisions"}],"predecessor-version":[{"id":530,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/528\/revisions\/530"}],"wp:attachment":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=528"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}