{"id":1942,"date":"2010-12-10T20:41:54","date_gmt":"2010-12-10T20:41:54","guid":{"rendered":"http:\/\/www.icocean.com\/blog\/?p=1942"},"modified":"2010-12-11T00:29:35","modified_gmt":"2010-12-11T00:29:35","slug":"linux%E5%86%8D%E7%88%86root%E5%B8%90%E5%8F%B7%E6%8F%90%E6%9D%83%E6%BC%8F%E6%B4%9E","status":"publish","type":"post","link":"https:\/\/www.icocean.com\/blog\/?p=1942","title":{"rendered":"Linux \u518d\u7206 root \u5e10\u53f7\u63d0\u6743\u6f0f\u6d1e"},"content":{"rendered":"<p>\u7cfb\u7edf\u5b89\u5168\u9ad8\u624b<a href=\"https:\/\/www.icocean.com\/blog\/read.php\/1941.htm\" target=\"_blank\">Dan Rosenberg \u53d1\u5e03\u4e86\u4e00\u6bb5 C \u7a0b\u5e8f<\/a>\uff0c \u8fd9\u6bb5200\u591a\u884c\u7684\u7a0b\u5e8f\u5229\u7528\u4e86 Linux Econet \u534f\u8bae\u76843\u4e2a\u5b89\u5168\u6f0f\u6d1e\uff0c\u53ef\u4ee5\u5bfc\u81f4\u672c\u5730\u5e10\u53f7\u5bf9\u7cfb\u7edf\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u6216\u7279\u6743\u63d0\u5347\uff0c\u4e5f\u5c31\u662f\u8bf4\u4e00\u4e2a\u666e\u901a\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u8fd9\u6bb5\u7a0b\u5e8f\u540e\u8f7b\u677e\u83b7\u5f97 root shell\uff0c\u4ee5\u4e0b\u5728 update \u8fc7\u7684 Ubuntu 10.04 Server LTS \u4e0a\u6d4b\u8bd5\u901a\u8fc7\uff1a<\/p>\n<p>$ sudo apt-get update<br \/>$ sudo apt-get upgrade<\/p>\n<p>$ uname -r<br \/>2.6.32-21-server<\/p>\n<p>$ gcc full-nelson.c -o full-nelson<br \/>$ .\/full-nelson[*] Resolving kernel addresses&#8230;<br \/> [+] Resolved econet_ioctl to 0xffffffffa0131510<br \/> [+] Resolved econet_ops to 0xffffffffa0131600<br \/> [+] Resolved commit_creds to 0xffffffff8108b820<br \/> [+] Resolved prepare_kernel_cred to 0xffffffff8108bc00<br \/>[*] Calculating target&#8230;<br \/>[*] Failed to set Econet address.<br \/>[*] Triggering payload&#8230;<br \/>[*] Got root!#<\/p>\n<p>\u7531\u4e8e RHEL\/CentOS \u9ed8\u8ba4\u4e0d\u652f\u6301 Econet \u534f\u8bae\uff0c\u6240\u4ee5\u6d4b\u8bd5\u6ca1\u6709\u901a\u8fc7\uff1a<br \/># yum update<\/p>\n<p>$ uname -r<br \/>2.6.18-194.26.1.el5<\/p>\n<p>$ gcc full-nelson.c -o full-nelson<br \/>$ .\/full-nelson<br \/>[*] Failed to open file descriptors.<\/p>\n<p>\u5982\u679c\u5728\u4f01\u4e1a\u73af\u5883\u7528 Ubuntu \u7684\u8bdd\u53ef\u80fd\u4f1a\u6bd4\u8f83\u676f\u5177\u4e86<!--more-->\uff0c\u51e0\u767e\u4e2a\u5e10\u53f7\u91cc\u603b\u53ef\u4ee5\u627e\u5230\u4e00\u4e24\u4e2a\u5e10\u53f7\u88ab\u5185\u90e8\u6216\u5916\u90e8\u4eba\u5458\u901a\u8fc7\u4e0a\u9762\u8fd9\u6bb5\u7a0b\u5e8f\u62ff\u5230 root\uff0c\u8fd9\u5bf9\u670d\u52a1\u5668\u7684\u5371\u5bb3\u662f\u6bc1\u706d\u6027\u7684\u3002\u524d\u5929\u8fd8\u5728\u8bf4 Ubuntu \u5728\u5185\u6838\u65b9\u9762\u65e0\u4f5c\u4e3a\uff0c \u73b0\u5728\u60f3\u8d77\u6765\u8fd8\u6709\u70b9\u540e\u6015\u3002VPSee \u63d0\u9192\u6b63\u5728\u4f7f\u7528\u591a\u4e2a\u666e\u901a\u5e10\u53f7\u767b\u5f55 Ubuntu VPS \u7684\u670b\u53cb\u53ca\u65f6\u5347\u7ea7\u6216\u6253\u5185\u6838\u8865\u4e01\uff0c\u51fa\u552e VPN\/SSH \u5e10\u53f7\u3001\u63d0\u4f9b\u514d\u8d39 SSH \u7684\u5546\u5bb6\u5c24\u5176\u8981\u5c0f\u5fc3 \u201c\u5ba2\u6237\u201d \u6363\u4e71\uff0c\u4f7f\u7528\u5176\u4ed6 Linux \u53d1\u884c\u7248\u7684\u670b\u53cb\u4e5f\u6700\u597d\u68c0\u67e5\u4e00\u4e0b\u81ea\u5df1\u7684 VPS \u6709\u6ca1\u6709\u8fd9\u4e9b\u9ad8\u5371\u6f0f\u6d1e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7cfb\u7edf\u5b89\u5168\u9ad8\u624bDan Rosenberg \u53d1\u5e03\u4e86\u4e00\u6bb5 C \u7a0b\u5e8f\uff0c \u8fd9\u6bb5200\u591a\u884c\u7684\u7a0b\u5e8f\u5229\u7528\u4e86 Linux Eco <a href='https:\/\/www.icocean.com\/blog\/?p=1942' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[3117,3114,434,3116,604,1272,595],"class_list":["post-1942","post","type-post","status-publish","format-standard","hentry","category-linuxunix","tag-exploit","tag-kernel","tag-linux","tag-privilege","tag-root","tag-server","tag-ubuntu","category-16-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1942"}],"version-history":[{"count":0,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1942\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.icocean.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}