{"id":146,"date":"2024-06-30T11:17:56","date_gmt":"2024-06-30T03:17:56","guid":{"rendered":"http:\/\/39.104.51.85\/?p=146"},"modified":"2024-07-19T01:25:30","modified_gmt":"2024-07-18T17:25:30","slug":"stdin%e5%ad%a6%e4%b9%a0","status":"publish","type":"post","link":"http:\/\/39.104.51.85\/index.php\/2024\/06\/30\/stdin%e5%ad%a6%e4%b9%a0\/","title":{"rendered":"stdin\u3001stdout\u5b66\u4e60"},"content":{"rendered":"\n<p>\u53c2\u8003\u81ea<a href=\"https:\/\/bbs.kanxue.com\/thread-261914.htm\">[\u539f\u521b]IO-FILE\u4e2d\u7684stdin\u4ecb\u7ecd-Pwn-\u770b\u96ea-\u5b89\u5168\u793e\u533a|\u5b89\u5168\u62db\u8058|kanxue.com<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/xz.aliyun.com\/t\/5853?time__1311=n4%2BxnD07DtGQi%3DGCYGODlhje0%3DmBb33%2BhfrD&amp;alichlgref=https%3A%2F%2Fxz.aliyun.com%2Fu%2F15219\">IO FILE \u4e4b\u4efb\u610f\u8bfb\u5199 &#8211; \u5148\u77e5\u793e\u533a (aliyun.com)<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.anquanke.com\/post\/id\/177958\">IO FILE\u4e4bfread\u8be6\u89e3-\u5b89\u5168\u5ba2 &#8211; \u5b89\u5168\u8d44\u8baf\u5e73\u53f0 (anquanke.com)<\/a><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>p *stdin\n$1 = {\n  _flags = -72540024,\n  _IO_read_ptr = 0x0,#\u7f13\u51b2\u533a\u5185\u8fd8\u672a\u88ab\u8bfb\u53d6\u7684\u6570\u636e\u8d77\u59cb\u4f4d\u7f6e\n  _IO_read_end = 0x0,#\u7f13\u51b2\u533a\u5185\u8fd8\u672a\u88ab\u8bfb\u53d6\u7684\u6570\u636e\u672b\u5c3e\u4f4d\u7f6e\n  _IO_read_base = 0x0,#\u8bfb\u5165\u6570\u636e\u7684\u8d77\u59cb\u4f4d\u7f6e\n  _IO_write_base = 0x0,#\u8f93\u51fa\u7f13\u51b2\u533a\u57fa\u5740\n  _IO_write_ptr = 0x0,#_IO_write_ptr\u548c_IO_write_base\u4e4b\u95f4\u7684\u5730\u5740\u4e3a\u5df2\u4f7f\u7528\u7684\u7f13\u51b2\u533a\uff0c_IO_write_ptr\u548c_IO_write_end\u4e4b\u95f4\u4e3a\u672a\u4f7f\u7528\u7684\u7f13\u51b2\u533a\n  _IO_write_end = 0x0,#\u8f93\u51fa\u7f13\u51b2\u533a\u7ed3\u675f\u5730\u5740\n  _IO_buf_base = 0x0,#\u7f13\u51b2\u533a\u7684\u8d77\u59cb\n  _IO_buf_end = 0x0,#\u7f13\u51b2\u533a\u7684\u672b\u5c3e\n  _IO_save_base = 0x0,\n  _IO_backup_base = 0x0,\n  _IO_save_end = 0x0,\n  _markers = 0x0,\n  _chain = 0x0,\n  _fileno = 0,\n  _flags2 = 0,\n  _old_offset = -1,\n  _cur_column = 0,\n  _vtable_offset = 0 '\\000',\n  _shortbuf = \"\",\n  _lock = 0x7ffff7fa7a80 &lt;_IO_stdfile_0_lock&gt;,\n  _offset = -1,\n  _codecvt = 0x0,\n  _wide_data = 0x7ffff7fa5b80 &lt;_IO_wide_data_0&gt;,\n  _freeres_list = 0x0,\n  _freeres_buf = 0x0,\n  __pad5 = 0,\n  _mode = 0,\n  _unused2 = '\\000' &lt;repeats 19 times&gt;\n}<\/code><\/pre>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_69_1 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >\u5185\u5bb9<\/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: #999;color:#999\" 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: #999;color:#999\" 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-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"http:\/\/39.104.51.85\/index.php\/2024\/06\/30\/stdin%e5%ad%a6%e4%b9%a0\/#stdin%E4%BB%BB%E6%84%8F%E5%86%99%E6%80%BB%E7%BB%93\" title=\"stdin\u4efb\u610f\u5199\u603b\u7ed3\">stdin\u4efb\u610f\u5199\u603b\u7ed3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"http:\/\/39.104.51.85\/index.php\/2024\/06\/30\/stdin%e5%ad%a6%e4%b9%a0\/#stdout%E4%BB%BB%E6%84%8F%E8%AF%BB%E6%80%BB%E7%BB%93\" title=\"stdout\u4efb\u610f\u8bfb\u603b\u7ed3\">stdout\u4efb\u610f\u8bfb\u603b\u7ed3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"http:\/\/39.104.51.85\/index.php\/2024\/06\/30\/stdin%e5%ad%a6%e4%b9%a0\/#stdout%E4%BB%BB%E6%84%8F%E5%86%99%E6%80%BB%E7%BB%93\" title=\"stdout\u4efb\u610f\u5199\u603b\u7ed3\">stdout\u4efb\u610f\u5199\u603b\u7ed3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"http:\/\/39.104.51.85\/index.php\/2024\/06\/30\/stdin%e5%ad%a6%e4%b9%a0\/#%E9%99%84%E8%B5%A0%E5%A5%BD%E7%94%A8payload\" title=\"\u9644\u8d60\u597d\u7528payload\">\u9644\u8d60\u597d\u7528payload<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"stdin%E4%BB%BB%E6%84%8F%E5%86%99%E6%80%BB%E7%BB%93\"><\/span>stdin\u4efb\u610f\u5199\u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8bbe\u7f6e<code>_IO_read_end<\/code>\u7b49\u4e8e<code>_IO_read_ptr<\/code>\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_flag<\/code>=0xfbad208b\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_fileno<\/code>\u4e3a0\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_IO_buf_base<\/code>\u4e3a<code>write_start<\/code>\uff0c<code>_IO_buf_end<\/code>\u4e3a<code>write_end<\/code>\uff1b\u4e14\u4f7f\u5f97<code>_IO_buf_end-_IO_buf_base<\/code>\u5927\u4e8efread\u8981\u8bfb\u7684\u6570\u636e\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"stdout%E4%BB%BB%E6%84%8F%E8%AF%BB%E6%80%BB%E7%BB%93\"><\/span>stdout\u4efb\u610f\u8bfb\u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u8bbe\u7f6e<code>_flag<\/code>=0xfbad9800<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_fileno<\/code>\u4e3a1\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_IO_write_base<\/code>\u6307\u5411\u60f3\u8981\u6cc4\u9732\u7684\u5730\u65b9\uff1b<code>_IO_write_ptr<\/code>\u6307\u5411\u6cc4\u9732\u7ed3\u675f\u7684\u5730\u5740\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_IO_read_end<\/code>\u7b49\u4e8e<code>_IO_write_base<\/code>\u6216\u8bbe\u7f6e<code>_flag &amp; _IO_IS_APPENDING<\/code>\u5373<code>_flag | 0x1000<\/code>\u3002<\/p>\n\n\n\n<p>\u8bbe\u7f6e<code>_IO_write_end<\/code>\u7b49\u4e8e<code>_IO_write_ptr<\/code>\uff08\u975e\u5fc5\u987b\uff09\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"stdout%E4%BB%BB%E6%84%8F%E5%86%99%E6%80%BB%E7%BB%93\"><\/span>stdout\u4efb\u610f\u5199\u603b\u7ed3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p><code>_IO_write_ptr<\/code>\u6307\u5411<code>write_start<\/code>\uff0c<code>_IO_write_end<\/code>\u6307\u5411<code>write_end<\/code>\u5373\u53ef\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%99%84%E8%B5%A0%E5%A5%BD%E7%94%A8payload\"><\/span>\u9644\u8d60\u597d\u7528payload<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>def struct_io_file(flags=0,read_ptr=0,read_end=0,read_base=0,\n                    write_base=0,write_ptr=0,write_end=0,\n                    buf_base=0,buf_end=0,\n                    save_base=0,backup_base=0,save_end=0,\n                    markers=0,chain=0,fileno=0,flag2=0,lock=0):\n    f = p64(flags) + p64(read_ptr) + \\\n        p64(read_end) + p64(read_base) + \\\n        p64(write_base) + p64(write_ptr) + \\\n        p64(write_end) + p64(buf_base) + \\\n        p64(buf_end) + p64(save_base) + \\\n        p64(backup_base) + p64(save_end) + \\\n        p64(markers) + p64(chain) + \\\n        p64(fileno) + p64(flag2) + \\\n        p64(0) + p64(lock)\n    f = f.ljust(0xd0,b'\\x00')\n    return f<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u53c2\u8003\u81ea[\u539f\u521b]IO-FILE\u4e2d\u7684stdin\u4ecb\u7ecd-Pwn-\u770b\u96ea-\u5b89\u5168\u793e\u533a|\u5b89\u5168\u62db\u8058|kanxue.com IO  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[20,21],"class_list":["post-146","post","type-post","status-publish","format-standard","hentry","category-pwn","tag-stdin","tag-stdout"],"_links":{"self":[{"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/posts\/146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/comments?post=146"}],"version-history":[{"count":8,"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/posts\/146\/revisions"}],"predecessor-version":[{"id":176,"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/posts\/146\/revisions\/176"}],"wp:attachment":[{"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/media?parent=146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/categories?post=146"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/39.104.51.85\/index.php\/wp-json\/wp\/v2\/tags?post=146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}