{"id":396,"date":"2013-09-10T13:38:13","date_gmt":"2013-09-10T05:38:13","guid":{"rendered":"http:\/\/www.shuran.cn\/?p=396"},"modified":"2013-09-10T13:38:13","modified_gmt":"2013-09-10T05:38:13","slug":"php%e5%b8%b8%e8%a7%81%e6%bc%8f%e6%b4%9e%e5%8f%8a%e4%bf%ae%e5%a4%8d%e6%96%b9%e6%b3%95%ef%bc%88%e5%ad%a6%e4%b9%a0%ef%bc%8c%e7%a7%af%e7%b4%af%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.shuran.cn\/?p=396","title":{"rendered":"PHP\u5e38\u89c1\u6f0f\u6d1e\u53ca\u4fee\u590d\u65b9\u6cd5\uff08\u5b66\u4e60\uff0c\u79ef\u7d2f\uff09"},"content":{"rendered":"

\u539f\u6587\uff1ahttp:\/\/www.2cto.com\/Article\/201308\/237598.html<\/p>\n

\u611f\u8c22\u4f5c\u8005\uff01<\/p>\n

 <\/p>\n

\u201c\u5b89\u5168\u662f\u4e00\u4e2a\u6574\u4f53\uff0c\u4fdd\u8bc1\u5b89\u5168\u4e0d\u5728\u4e8e\u5f3a\u5927\u7684\u5730\u65b9\u6709\u591a\u5f3a\u5927 \u800c\u5728\u4e8e\u771f\u6b63\u8584\u5f31\u7684\u5730\u65b9\u5728\u54ea\u91cc\u201d--\u5251\u5fc3<\/p>\n

\u4ece\u5f88\u591a\u7684\u6e17\u900f\u5927\u578b\u4f01\u4e1a\u5185\u7f51\u7684\u6848\u4f8b\u6765\u770b\uff0c\u5165\u4fb5\u8005\u5927\u591a\u6570\u662f\u4eceWeb\u4e0a\u627e\u5230\u6f0f\u6d1e\uff0c\u4ece\u800c\u5229\u7528\u6f0f\u6d1e\u8fdb\u4e00\u6b65\u8fdb\u884c\u63d0\u6743\uff0c\u6e17\u900f\u5165\u4fb5\u3002<\/p>\n

\u7f51\u6613\u67d0\u7cfb\u7edf\u672a\u6388\u6743\u8bbf\u95ee\u53ef\u5bfc\u81f4\u5185\u7f51\u88ab\u6e17\u900f\uff1ahttp:\/\/www.2cto.com\/Article\/201208\/151524.html<\/p>\n

\u7f51\u6613\u67d0\u7cfb\u7edf\u672a\u6388\u6743\u8bbf\u95ee\u7eed\u2014\u5185\u7f51\u6e17\u900f\uff1ahttp:\/\/www.2cto.com\/Article\/201208\/151741.html<\/p>\n

 <\/p>\n

\u811a\u672c\u5b89\u5168\u5c31\u50cf\u4f60\u5bb6\u7684\u9632\u76d7\u95e8\uff0c\u4f60\u5bb6\u95e8\u90fd\u6ca1\u5173\uff0c\u4f60\u5bb6\u80fd\u5b89\u5168\u5417\uff1f<\/p>\n

\u4e4c\u4e91\u4e0a\u6700\u5e38\u89c1\u7684\u811a\u672c\u6f0f\u6d1e\u83ab\u8fc7\u4e8eSQL\u6ce8\u5165\u548cXSS\u3002<\/p>\n

\u811a\u672c\u5b89\u5168\u7684\u672c\u8d28\u5c31\u662f\u811a\u672c\u63a5\u53d7\u4e86\u4e0d\u5b89\u5168\u7684\u53d8\u91cf\u8f93\u5165\uff0c\u53c8\u6ca1\u5f97\u5230\u6709\u6548\u7684\u8fc7\u6ee4\uff0c\u6700\u540e\u8fdb\u5165\u4e00\u4e9b\u5bf9\u654f\u611f\u7684\u51fd\u6570\u5c31\u4f1a\u5bf9\u5b89\u5168\u9020\u6210\u5a01\u80c1\u3002<\/p>\n

\u6bd4\u5982\u51fa\u73b0\u5728mysql_query()\u51fd\u6570\u53ef\u80fd\u5c31\u4f1a\u9020\u6210SQL\u6ce8\u5165\u6f0f\u6d1e\uff0c\u51fa\u73b0\u5728eval()\u4ee5\u53capreg_replace()\u4e2d\u53ef\u80fd\u5bfc\u81f4\u4ee3\u7801\u7684\u6267\u884c\u3002<\/p>\n

\u8fd9\u91cc\u6211\u7528DVWA\u6f14\u793aSQL,XSS ,\u4efb\u610f\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u7684\u539f\u7406<\/p>\n

\u7136\u540e\u7528\u5404\u79cd\u4fee\u590d\u65b9\u6cd5\u8fdb\u884c\u4fee\u590d\uff0c\u9644\u5e26\u8bb2\u89e3\u4e00\u4e9b\u4fee\u590d\u65b9\u6cd5\u7684\u5f0a\u7aef\u3002<\/p>\n

DVWA\u4e0b\u8f7d\u5730\u5740: https:\/\/github.com\/RandomStorm\/DVWA\/archive\/v1.0.8.zip<\/p>\n

DVWA sql\u8c03\u7528\u7684\u6587\u4ef6\/vulnerabilities\/sqli\/\u76ee\u5f55\u4e0b\uff0c\u5206\u4e3alow,medium,high\u4e09\u4e2a\u7b49\u7ea7<\/p>\n

SQL\u6ce8\u5165\u539f\u7406<\/h3>\n
\n
<\/div>\n<\/div>\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
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3<\/div>\n
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5<\/div>\n
6<\/div>\n
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9<\/div>\n
10<\/div>\n<\/td>\n
\n
\n
\/\/Low.php<\/code><\/div>\n
\u00a0<\/code><\/div>\n
if<\/code>(isset(<\/code>$_GET<\/code>[<\/code>'Submit'<\/code>])){<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ Retrieve data<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$id<\/code> = <\/code>$_GET<\/code>[<\/code>'id'<\/code>];<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$getid<\/code> = <\/code>\"SELECT first_name, last_name FROM users WHERE user_id = '$id'\"<\/code>;<\/code>\/\/\u8fd9\u91cc$id\u53d8\u91cf\u6ca1\u6709\u7ecf\u8fc7\u4efb\u4f55\u7684\u8fc7\u6ee4\uff0c\u76f4\u63a5\u4f20\u5165\u4e86sql\u8bed\u53e5\uff0c\u9020\u6210\u5b57\u7b26\u578b\u6ce8\u5165<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$result<\/code> = mysql_query(<\/code>$getid<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> );<\/code>\/\/\u6267\u884cSQL<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u539fSQL\u4e2d<\/p>\n

SELECT first_name, last_name FROM users WHERE user_id = '$id'\r\n<\/code><\/pre>\n
\u4e2d\u7684$id\u53ef\u88ab\u7528\u6237\u63a7\u5236\uff0c\u5f53\u9ed1\u5ba2<\/a>\u628a$id\u53d8\u6210<\/p>\n
' union select user,password from users#\r\n<\/code><\/pre>\n
\u90a3\u4e48\u8fd9\u6761\u8bed\u53e5\u5c31\u4f1a\u53d8\u6210<\/p>\n
SELECT first_name, last_name FROM users WHERE user_id = '' union select user,password from users#\r\n<\/code><\/pre>\n
\u8fd9\u6837\u5bfc\u81f4\u4e86\u6570\u636e\u5e93\u4e2d\u5176\u4ed6\u6570\u636e\u88ab\u9ed1\u5ba2\u67e5\u8be2\u3002 \ufffc<\/p>\n
\"enter<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
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\n
\n
\/\/medium.php\u4e2d<\/code><\/div>\n
if<\/code> (isset(<\/code>$_GET<\/code>[<\/code>'Submit'<\/code>])) {<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ Retrieve data<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$id<\/code> = <\/code>$_GET<\/code>[<\/code>'id'<\/code>];<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$id<\/code> = mysql_real_escape_string(<\/code>$id<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$getid<\/code> = <\/code>\"SELECT first_name, last_name FROM users WHERE user_id = $id\"<\/code>;<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$result<\/code> = mysql_query(<\/code>$getid<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> ); <\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$num<\/code> = mysql_numrows(<\/code>$result<\/code>);<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
 <\/p>\n<\/div>\n<\/div>\n
\u867d\u7136$id\u7ecf\u8fc7\u4e86mysql_real_escape_string\u8f6c\u4e49\u4e86\u2019\uff0c\u53ef\u662f\u56e0\u4e3a\u540e\u9762\u7684SQL\u8bed\u53e5$id\u6ca1\u6709\u5355\u5f15\u53f7\u4fdd\u62a4\uff0c\u4f1a\u88ab\u7cfb\u7edf\u8ba4\u4e3a\u662f\u6570\u503c\u578b\uff0c\u5bfc\u81f4\u6570\u503c\u578b\u6ce8\u5165<\/p>\n
\u6784\u9020SQL\u6ce8\u5165\u8bed\u53e5<\/p>\n
1 union select user,password from users\r\n<\/code><\/pre>\n
SQL\u8bed\u53e5\u5c31\u53d8\u6210\u4e86<\/p>\n
SELECT first_name, last_name FROM users WHERE user_id = 1 union select user,password from users \ufffc\r\n<\/code><\/pre>\n
\"enter<\/p>\n
SQL\u6ce8\u5165\u4fee\u8865\u65b9\u6cd5<\/h3>\n
\u5b57\u7b26\u578b\u6ce8\u5165\u6f0f\u6d1e<\/a>\u4fee\u8865\u65b9\u6cd5\uff1a<\/p>\n
PHP5.3\u4e4b\u524d\u7248\u672c\u5728php.ini\u4e2d\u8bbe\u7f6e<\/p>\n
magic_quotes_gpc=On; \r\n<\/code><\/pre>\n
magic_quotes_quotes_gpc\u4f1a\u5bf9\u4f20\u5165\u7684$_POST,$_GET,$_SERVER\u91cc\u7684 \u2018,\u201d,\\\u8fdb\u884c\u8f6c\u4e49\u3002<\/p>\n
\u4f46\u662fPHP5.4\u4e4b\u540e\uff0cmagic_quotes_quotes_gpc\u5c31\u88ab\u5e9f\u9664\u4e86\u3002<\/p>\n
\u8fd8\u8981\u4f7f\u7528mysql_real_escape_string()\u6216addslashes()\u5bf9\u4f20\u5165\u53c2\u6570\u8fdb\u884c\u8fc7\u6ee4\uff0c\u6216\u8005\u4f7f\u7528str_replace()\u5bf9\u4e00\u4e9b\u5173\u952e\u8bcd\u8fdb\u884c\u66ff\u6362\u3002<\/p>\n
\u4f8b\uff1a<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
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7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n<\/td>\n
\n
\n
if<\/code>(isset(<\/code>$_GET<\/code>[<\/code>'Submit'<\/code>])){<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\/\/ Retrieve data<\/code><\/div>\n
\u00a0<\/code><\/div>\n
$id<\/code> = <\/code>addslashes<\/code>(<\/code>$_GET<\/code>[<\/code>'id'<\/code>]);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
$getid<\/code> = <\/code>\"SELECT first_name, last_name FROM users WHERE user_id = '$id'\"<\/code>; <\/code><\/div>\n
$result<\/code> = mysql_query(<\/code>$getid<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> ); <\/code><\/div>\n
\u00a0<\/code><\/div>\n
$num<\/code> = mysql_numrows(<\/code>$result<\/code>);<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
 <\/p>\n<\/div>\n<\/div>\n
\u4fee\u8865\u540e\u8fdb\u884cSQL\u6ce8\u5165<\/h3>\n
\"enter<\/p>\n
\u4f46\u662faddslashes()\u548cmysql_real_escape_string()\u5728\u6570\u636e\u5e93\u5b57\u7b26\u96c6\u8bbe\u4e3aGBK\u65f6\u662f\u53ef\u80fd\u88ab\u7ed5\u8fc7\u7684\u3002<\/p>\n
PHP\u5b57\u7b26\u7f16\u7801\u7ed5\u8fc7\u6f0f\u6d1e\u53c2\u8003\u6587\u00a0http:\/\/www.2cto.com\/Article\/201012\/79778.html<\/p>\n
\u5982\u679c\u6570\u636e\u5e93\u5b57\u7b26\u96c6\u662fGBK\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u628a<\/p>\n
$mysqli->query('SET NAMES gbk'); \r\n<\/code><\/pre>\n
\u4fee\u6539\u4e3a\uff1a<\/p>\n
$mysqli->set_charset('gbk');\r\n<\/code><\/pre>\n
\u6570\u503c\u578b\u6ce8\u5165\uff1a<\/p>\n
\u6570\u503c\u578b\u6ce8\u5165\u6bd4\u8f83\u597d\u4fee\u8865\uff0c\u53ea\u9700\u8981\u5224\u65ad\u4f20\u5165\u7684\u53d8\u91cf\u662f\u5426\u4e3a\u6570\u503c\u578b\u5c31\u53ef\u4ee5\u4e86(\u6216\u8005\u5f3a\u884c\u6539\u6210\u5b57\u7b26\u578b)<\/p>\n
\u4f8b\uff1a<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n<\/td>\n
\n
\n
$id<\/code> = <\/code>$_GET<\/code>[<\/code>'id'<\/code>];<\/code><\/div>\n
$id<\/code> = <\/code>intval<\/code> (<\/code>$id<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
$getid<\/code> = <\/code>\"SELECT first_name, last_name FROM users WHERE user_id = $id\"<\/code>;<\/code><\/div>\n
\u00a0<\/code><\/div>\n
$result<\/code> = mysql_query(<\/code>$getid<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> ); <\/code><\/div>\n
\u00a0<\/code><\/div>\n
$num<\/code> = mysql_numrows(<\/code>$result<\/code>);<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
 <\/p>\n<\/div>\n<\/div>\n
\u4fee\u8865\u540e\u6548\u679c<\/p>\n
\"enter<\/p>\n
XSS\u6f0f\u6d1e\u539f\u7406<\/h3>\n
\u9ed1\u5ba2\u5f80Web\u9875\u9762\u91cc\u63d2\u5165\u6076\u610fhtml\u4ee3\u7801\uff0c\u5f53\u7528\u6237\u6d4f\u89c8\u8be5\u9875\u4e4b\u65f6\uff0c\u5d4c\u5165\u5176\u4e2dWeb\u91cc\u9762\u7684html\u4ee3\u7801\u4f1a\u88ab\u6267\u884c\uff0c\u4ece\u800c\u8fbe\u5230\u9ed1\u5ba2\u7684\u7279\u6b8a\u76ee\u7684\uff0c\u6bd4\u5982\u7a83\u53d6\u7528\u6237cookies.\u6216\u8005\u8fdb\u884c\u5176\u4ed6\u64cd\u4f5c\u3002 \u5728<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
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19<\/div>\n<\/td>\n
\n
\n
\/\/low.php<\/code><\/div>\n
<?php<\/code><\/div>\n
if<\/code>(isset(<\/code>$_POST<\/code>[<\/code>'btnSign'<\/code>]))<\/code><\/div>\n
{<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = trim(<\/code>$_POST<\/code>[<\/code>'mtxMessage'<\/code>]);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code>\u00a0\u00a0\u00a0 = trim(<\/code>$_POST<\/code>[<\/code>'txtName'<\/code>]);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>\/\/ Sanitize message input<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = <\/code>stripslashes<\/code>(<\/code>$message<\/code>);<\/code>\/\/stripslashes() \u51fd\u6570\u5220\u9664\u7531 addslashes() \u51fd\u6570\u6dfb\u52a0\u7684\u53cd\u659c\u6760\u3002<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = mysql_real_escape_string(<\/code>$message<\/code>);<\/code>\/\/mysql_real_escape_string() \u51fd\u6570\u8f6c\u4e49 SQL \u8bed\u53e5\u4e2d\u4f7f\u7528\u7684\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u3002<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>\/\/ Sanitize name input<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code> = mysql_real_escape_string(<\/code>$name<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$query<\/code> = <\/code>\"INSERT INTO guestbook (comment,name) VALUES ('$message','$name');\"<\/code>;<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$result<\/code> = mysql_query(<\/code>$query<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> ); } <\/code><\/div>\n
?><\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
 <\/p>\n<\/div>\n<\/div>\n
\u4ece\u4e0a\u9762\u7a0b\u5e8f\u53ef\u4ee5\u770b\u51fa\uff0c$message,$name\u4e24\u4e2a\u53d8\u91cf\u4ece$_POST\u4f20\u5165,\u53ea\u662f\u7ecf\u8fc7\u4e00\u4e9b\u7279\u6b8a\u5b57\u7b26\u7684\u8f6c\u6362\u3002\u5e76\u6ca1\u6709\u5bf9\u5c16\u62ec\u53f7\u8fdb\u884c\u8f6c\u4e49,\u6240\u4ee5\u8fd8\u662f\u9020\u6210\u4e86XSS\u7684\u4ea7\u751f\u3002<\/p>\n
\u76f4\u63a5\u63d2\u5165XSS\u8bed\u53e5<\/p>\n
<script>alert(1)<script>\r\n<\/code><\/pre>\n
\u5c31\u6267\u884c\u4e86<\/p>\n
\u800cmedium.php\u4e2d\uff0c\u867d\u7136\u5bf9$message\u8fdb\u884c\u4e86\u5c16\u62ec\u53f7\u8f6c\u4e49\uff0c\u800c\u4e14\u5bf9<script><\/code>\u8fdb\u884c\u4e86\u66ff\u6362\uff0c\u4f46\u662f$name\u6ca1\u6709\u8fdb\u884c\u8f6c\u4e49\uff0c\u800c\u4e14\u8de8\u7ad9\u811a\u672c\u53ef\u4ee5\u7528\u591a\u79cd\u6807\u7b7e\uff0c\u5982<img \/><\/code>,\u7b49\u2026\u3002Name\u7684<input \/><\/code>\u9650\u5236\u4e86maxlength=\u201810\u2019\u7684\u957f\u5ea6\uff0c\u4f46\u662f\u6211\u4eec\u7684\u9632\u5fa1\u5bf9\u8c61\u662f\u7cbe\u901a\u6280\u672f\u7684\u9ed1\u5ba2\u3002\u8fd9\u79cdhtml\u4e0b\u7684\u957f\u5ea6\u9650\u5236\u662f\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u6d4f\u89c8\u5668<\/a>\u4fee\u6539..\u7136\u540e\u901a\u8fc7\u5927\u5c0f\u5199\u6210\u529f\u7ed5\u8fc7str_replace()\uff0c\u63d2\u5165XSS.<\/p>\n
 <\/p>\n
<SCript>alert(1)<\/SCript>\r\n<\/code><\/pre>\n
\ufffc<\/p>\n
\"enter<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
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24<\/div>\n<\/td>\n
\n
\n
<?php<\/code><\/div>\n
\u00a0<\/code><\/div>\n
if<\/code>(isset(<\/code>$_POST<\/code>[<\/code>'btnSign'<\/code>]))<\/code><\/div>\n
{<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = trim(<\/code>$_POST<\/code>[<\/code>'mtxMessage'<\/code>]);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code>\u00a0\u00a0\u00a0 = trim(<\/code>$_POST<\/code>[<\/code>'txtName'<\/code>]);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>\/\/ Sanitize message input<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = trim(<\/code>strip_tags<\/code>(<\/code>addslashes<\/code>(<\/code>$message<\/code>)));<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = mysql_real_escape_string(<\/code>$message<\/code>);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = htmlspecialchars(<\/code>$message<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>\/\/ Sanitize name input<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code> = <\/code>str_replace<\/code>(<\/code>'<script>'<\/code>, <\/code>''<\/code>, <\/code>$name<\/code>);\u00a0 <\/code>\/\/\u4e00\u4e2a\u5927\u5c0f\u5199\u5c31\u53ef\u4ee5\u7ed5\u8fc7\uff0c\u6216\u8005<img \/> <\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code> = mysql_real_escape_string(<\/code>$name<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$query<\/code> = <\/code>\"INSERT INTO guestbook (comment,name) VALUES ('$message','$name');\"<\/code>;<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$result<\/code> = mysql_query(<\/code>$query<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> );<\/code><\/div>\n
\u00a0<\/code><\/div>\n
}<\/code><\/div>\n
\u00a0<\/code><\/div>\n
?><\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
 <\/p>\n<\/div>\n<\/div>\n
XSS\u6f0f\u6d1e\u4fee\u8865\u65b9\u6cd5<\/h3>\n
\u4f7f\u7528htmlspecialchars()\u5728\u8f93\u51fa\u65f6\u5bf9\u8f93\u51fa\u5185\u5bb9\u5c31\u884c\u8f6c\u4e49\u3002<\/p>\n
\u778c\u7761\u9f99\u8bf4\uff1a\u5728\u8f93\u51fa\u65f6\u8fdb\u884c\u8f6c\u4e49\u6bd4\u8f93\u5165\u65f6\u8fdb\u884c\u8f6c\u4e49\u6548\u679c\u66f4\u597d\uff0c\u56e0\u4e3a\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u5728\u5165\u5e93\u65f6\u662f\u5b8c\u6574\u7684\u2026.\u4e0d\u7136\u4e22\u5931\u6570\u636e\u3002<\/p>\n
\u4f8b\uff1a<\/p>\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
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21<\/div>\n
22<\/div>\n
23<\/div>\n
24<\/div>\n
25<\/div>\n<\/td>\n
\n
\n
<?php<\/code><\/div>\n
\u00a0<\/code><\/div>\n
if<\/code>(isset(<\/code>$_POST<\/code>[<\/code>'btnSign'<\/code>]))<\/code><\/div>\n
{<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = trim(<\/code>$_POST<\/code>[<\/code>'mtxMessage'<\/code>]);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code>\u00a0\u00a0\u00a0 = trim(<\/code>$_POST<\/code>[<\/code>'txtName'<\/code>]);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>\/\/ Sanitize message input<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = <\/code>stripslashes<\/code>(<\/code>$message<\/code>);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = mysql_real_escape_string(<\/code>$message<\/code>);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$message<\/code> = htmlspecialchars(<\/code>$message<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>\/\/ Sanitize name input<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code> = <\/code>stripslashes<\/code>(<\/code>$name<\/code>);<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code> = mysql_real_escape_string(<\/code>$name<\/code>); <\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$name<\/code> = htmlspecialchars(<\/code>$name<\/code>);<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$query<\/code> = <\/code>\"INSERT INTO guestbook (comment,name) VALUES ('$message','$name');\"<\/code>; <\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>$result<\/code> = mysql_query(<\/code>$query<\/code>) <\/code>or<\/code> die<\/code>(<\/code>'<pre>'<\/code> . mysql_error() . <\/code>'<\/pre>'<\/code> );<\/code><\/div>\n
\u00a0<\/code><\/div>\n
}<\/code><\/div>\n
\u00a0<\/code><\/div>\n
?><\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
\n
<\/div>\n<\/div>\n
\u4fee\u8865\u540e\u6548\u679c\uff0c\u53ef\u4ee5\u770b\u5230\u5c16\u62ec\u53f7\u5df2\u7ecf\u88ab\u8f6c\u4e49\u4e86\uff0chtml\u4ee3\u7801\u5df2\u7ecf\u4e0d\u6267\u884c<\/p>\n
\"enter<\/p>\n
\u4efb\u610f\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u539f\u7406<\/h3>\n
\u4efb\u610f\u547d\u4ee4\u6267\u884c\u53ef\u8c13\u662fweb\u91cc\u6700\u9ad8\u5371\u7684\u6f0f\u6d1e\u4e86\uff0c\u6709\u53ef\u80fd\u53ef\u4ee5\u76f4\u63a5\u5199\u4e0bshell\u6216\u8005\u76f4\u63a5\u6dfb\u52a0\u7528\u6237\u3002<\/p>\n
\u4efb\u610f\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u7684\u4ea7\u751f\u5927\u591a\u662f\u56e0\u4e3a\u53d8\u91cf\u53ef\u4ee5\u88ab\u7528\u6237\u8f93\u5165\u63a7\u5236\uff0c\u800c\u6ca1\u6709\u7ecf\u8fc7\u4efb\u4f55\u7684\u5224\u65ad\u548c\u8fc7\u6ee4\u5904\u7406\u5c31\u8fdb\u5165\u4e86\u9ad8\u5371\u7684\u51fd\u6570\u3002<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n
11<\/div>\n
12<\/div>\n
13<\/div>\n
14<\/div>\n
15<\/div>\n
16<\/div>\n
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18<\/div>\n
19<\/div>\n
20<\/div>\n
21<\/div>\n
22<\/div>\n
23<\/div>\n<\/td>\n
\n
\n
<?php<\/code><\/div>\n
\u00a0<\/code><\/div>\n
if<\/code>( isset( <\/code>$_POST<\/code>[ <\/code>'submit'<\/code> ] ) ) {<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>$target<\/code> = <\/code>$_REQUEST<\/code>[ <\/code>'ip'<\/code> ];<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>\/\/ Determine OS and execute the ping command.<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>if<\/code> (<\/code>stristr<\/code>(php_uname(<\/code>'s'<\/code>), <\/code>'Windows NT'<\/code>)) { <\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>$cmd<\/code> = shell_exec( <\/code>'ping\u00a0 '<\/code> . <\/code>$target<\/code> );<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>$html<\/code> .= <\/code>'<pre>'<\/code>.<\/code>$cmd<\/code>.<\/code>'<\/pre>'<\/code>;<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>} <\/code>else<\/code> { <\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>$cmd<\/code> = shell_exec( <\/code>'ping\u00a0 -c 3 '<\/code> . <\/code>$target<\/code> ); <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>$html<\/code> .= '<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0<\/code><pre><\/code>'.$cmd.'<\/code><\/pre>';<\/code><\/div>\n
\u00a0<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0<\/code>}<\/code><\/div>\n
\u00a0<\/code><\/div>\n
}<\/code><\/div>\n
?><\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
 <\/p>\n<\/div>\n<\/div>\n
\u7531\u4e8e$target\u6ca1\u6709\u7ecf\u8fc7\u5904\u7406\u5c31\u8fdb\u5165shell_exec\u51fd\u6570\uff0c\u5bfc\u81f4\u9ed1\u5ba2\u53ef\u4ee5\u6784\u9020\u7279\u6b8a\u7684\u53d8\u91cf\u6267\u884c\u6279\u5904\u7406\u547d\u4ee4\u3002<\/p>\n
\u6211\u8f93\u5165\u53ef 0 | dir<\/p>\n
\u90a3\u4e48\u6267\u884c\u7684\u547d\u4ee4\u7684\u547d\u4ee4\u5c31\u662f ping -c 0 | dir<\/p>\n
\"enter<\/p>\n
\u5047\u5982\u9ed1\u5ba2\u5728\u5229\u7528\u65f6\u8f93\u5165\u7684\u662f<\/p>\n
0|net user hacker\/add\r\n<\/code><\/pre>\n
\u90a3\u4e48\u9020\u6210\u7684\u540e\u679c\u5c06\u4e0d\u582a\u8bbe\u60f3<\/p>\n
\u4ee5\u4e0b\u662f\u53ef\u80fd\u4f1a\u9020\u6210\u4efb\u610f\u547d\u4ee4\u6267\u884c\u7684\u51fd\u6570<\/p>\n
system|passthru|exec|popen|proc_open|move_uploaded_file|eval|copy|shell_exec|assert\r\n<\/code><\/pre>\n
\u4efb\u610f\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u4fee\u8865\u529e\u6cd5<\/h3>\n
\u5728\u5199\u7a0b\u5e8f\u65f6\u5c3d\u91cf\u5730\u4f7f\u53d8\u91cf\u4e0d\u80fd\u88ab\u7528\u6237\u6240\u63a7\u5236\uff01\u4e14\u6ce8\u610f\u53d8\u91cf\u521d\u59cb\u5316\u7684\u95ee\u9898\u3002<\/p>\n
\u4f7f\u7528str_replace\u5bf9\u201c%\u201d\uff0c\u201d|\u201d,\u201c>\u201d\u8fdb\u884c\u66ff\u6362<\/p>\n
\u8fdb\u5165\u51fd\u6570\u524d\u5224\u65ad\u53d8\u91cf\u662f\u5426\u5408\u6cd5\u3002<\/p>\n
\u66b4\u529b\u7834\u89e3<\/a>\u6f0f\u6d1e<\/h3>\n
\u8fd9\u4e2a\u662f\u6f0f\u6d1e\uff1f\u7b97\u662f\u5427\u2026<\/p>\n
\u796d\u4e0a\u795e\u5668Burp Suite\uff0cBurp suite\u8fd0\u884c\u540e\uff0cBurp suite,Proxy \u5f00\u8d77\u9ed8\u8ba4\u76848080 \u7aef\u53e3\u4f5c\u4e3a\u672c\u5730\u4ee3\u7406\u63a5\u53e3\u3002<\/p>\n
\u4f7f\u7528Burp suite\u901a\u8fc7\u7f6e\u4e00\u4e2aweb \u6d4f\u89c8\u5668\u4f7f\u7528\u5176\u4ee3\u7406\u670d\u52a1\u5668\uff0c\u89c1\u4e0b\u56fe \ufffc\u00a0\"enter<\/p>\n
\u7136\u540e\u6253\u5f00\u4f60\u8981\u66b4\u529b\u7834\u89e3\u7684\u540e\u53f0\uff0c\u968f\u4fbf\u8f93\u5165\u4e00\u4e2a\u8d26\u53f7\u5bc6\u7801\u2026\u628a\u6293\u5230\u7684\u5305send to intruder \ufffc \ufffc\"enter<\/p>\n
\"enter<\/p>\n
\"enter<\/p>\n
Start attack~~~<\/p>\n
\u7136\u540e\u5c31\u5bf9\u9762\u8fd4\u56de\u5305\u7684\u5927\u5c0f\uff0c\u77e5\u9053\u5bc6\u7801<\/p>\n
\"enter<\/p>\n
\u66b4\u529b\u7834\u89e3\u6f0f\u6d1e\u4fee\u8865\u65b9\u6cd5<\/h3>\n
\u52a0\u4e2agoogle\u9a8c\u8bc1\u7801\uff0c\u4fdd\u8bc1\u6ca1\u6709\u7a0b\u5e8f\u80fd\u8bc6\u522b\u51fa\u6765\u2026<\/p>\n
\u6587\u4ef6\u5305\u542b\u6f0f\u6d1e<\/h3>\n
\u6587\u4ef6\u5305\u542b\u6f0f\u6d1e\u5206\u4e3a\u4e24\u79cd\uff0c\u4e00\u79cd\u662f\u8fdc\u7a0b\u5305\u542b\uff0c\u4e00\u79cd\u662f\u672c\u5730\u5305\u542b\u3002<\/p>\n
\u670d\u52a1\u5668\u901a\u8fc7php\u7684\u7279\u6027\uff08\u51fd\u6570\uff09\u53bb\u5305\u542b\u4efb\u610f\u6587\u4ef6\u65f6\uff0c\u7531\u4e8e\u8981\u5305\u542b\u7684\u8fd9\u4e2a\u6587\u4ef6\u6765\u6e90\u8fc7\u6ee4\u4e0d\u4e25\uff0c\u4ece\u800c\u53ef\u53bb\u8c03\u7528\u5e76\u6267\u884c\u4e00\u4e2a\u6587(\u6728)\u4ef6(\u9a6c)\uff0c\u800c\u6211\u4eec\u53ef\u4ee5\u6784\u9020\u8fd9\u4e2a\u6587(\u6728)\u4ef6(\u9a6c)\u6765\u8fbe\u5230\u90aa\u6076\u7684\u76ee\u7684\u3002<\/p>\n
\u6d89\u53ca\u5230\u7684\u5371\u9669\u51fd\u6570\uff0cinclude(),require()\u548cinclude_once(),require_once()<\/p>\n
\u73b0\u5728\u8fdc\u7a0b\u5305\u542b\u7684\u6f0f\u6d1e\u5df2\u7ecf\u4e0d\u591a\u4e86\uff0c\u4f46\u662f\u8fdc\u7a0b\u5305\u542b\u7684\u5371\u5bb3\u662f\u6700\u5927\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u547d\u4ee4\u6267\u884c\u3002<\/p>\n
\u800c\u672c\u5730\u5305\u542b\uff0c\u6709\u65f6\u914d\u5408\u4e00\u4e0b\u89e3\u6790\u6f0f\u6d1e\u5f80\u5f80\u53ef\u4ee5getshell.<\/p>\n
\u4f8b\uff1a<\/p>\n
\n
\n
\n
\n
?<\/a><\/div>\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/td>\n
\n
\n
<?php <\/code><\/div>\n
\u00a0<\/code><\/div>\n
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\u539f\u6587\uff1ahttp:\/\/www.2cto.com\/Article\/201308\/237598.html \u611f\u8c22\u4f5c\u8005\uff01\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-396","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts\/396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=396"}],"version-history":[{"count":2,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts\/396\/revisions"}],"predecessor-version":[{"id":398,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=\/wp\/v2\/posts\/396\/revisions\/398"}],"wp:attachment":[{"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shuran.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}