【PHP代码审计实例教程】SQL注入-4.全局防护Bypass之二次注入

if (!empty($_GET)){$_GET  = addslashes_deep($_GET);}if (!empty($_POST)){$_POST = addslashes_deep($_POST);}$_COOKIE   = addslashes_deep($_COOKIE);$_REQUEST  = addslashes_deep($_REQUEST);

elseif ($act=='make4_save'){$resume_education=get_resume_education($_SESSION['uid'],$_REQUEST['pid']);if (count($resume_education)>=6) showmsg('教育经历不能超过6条！',1,$link);$setsqlarr['uid']=intval($_SESSION['uid']);$setsqlarr['pid']=intval($_REQUEST['pid']);if ($setsqlarr['uid']==0 || $setsqlarr['pid']==0 ) showmsg('参数错误！',1);$setsqlarr['start']=trim($_POST['start'])?$_POST['start']:showmsg('请填写开始时间！',1,$link);$setsqlarr['endtime']=trim($_POST['endtime'])?$_POST['endtime']:showmsg('请填写结束时间！',1,$link);$setsqlarr['school']=trim($_POST['school'])?$_POST['school']:showmsg('请填写学校名称！',1,$link);$setsqlarr['speciality']=trim($_POST['speciality'])?$_POST['speciality']:showmsg('请填写专业名称！',1,$link);$setsqlarr['education']=trim($_POST['education'])?$_POST['education']:showmsg('请选择获得学历！',1,$link);$setsqlarr['education_cn']=trim($_POST['education_cn'])?$_POST['education_cn']:showmsg('请选择获得学历！',1,$link);    //看到这里有个插入表“qs_resume_education”的操作，将教育背景相关的字段入库    if (inserttable(table('resume_education'),$setsqlarr))    {        check_resume($_SESSION['uid'],intval($_REQUEST['pid']));

//检查简历的完成程度function check_resume($uid,$pid){global $db,$timestamp,$_CFG;$uid=intval($uid);$pid=intval($pid);$percent=0;$resume_basic=get_resume_basic($uid,$pid);$resume_intention=$resume_basic['intention_jobs'];$resume_specialty=$resume_basic['specialty'];//获取教育经历，出数据库了$resume_education=get_resume_education($uid,$pid);if (!empty($resume_basic))$percent=$percent+15;if (!empty($resume_intention))$percent=$percent+15;if (!empty($resume_specialty))$percent=$percent+15;if (!empty($resume_education))$percent=$percent+15;if ($resume_basic['photo_img'] && $resume_basic['photo_audit']=="1"  && $resume_basic['photo_display']=="1"){$setsqlarr['photo']=1;}else{$setsqlarr['photo']=0;}if ($percent<60){    $setsqlarr['complete_percent']=$percent;    $setsqlarr['complete']=2;}else{    $resume_work=get_resume_work($uid,$pid);    $resume_training=get_resume_training($uid,$pid);    $resume_photo=$resume_basic['photo_img'];    if (!empty($resume_work))$percent=$percent+13;    if (!empty($resume_training))$percent=$percent+13;    if (!empty($resume_photo))$percent=$percent+14;    $setsqlarr['complete']=1;    $setsqlarr['complete_percent']=$percent;    require_once(QISHI_ROOT_PATH.'include/splitword.class.php');    $sp = new SPWord();    $setsqlarr['key']=$resume_basic['intention_jobs'].$resume_basic['recentjobs'].$resume_basic['specialty'];            $setsqlarr['key']="{$resume_basic['fullname']} ".$sp->extracttag($setsqlarr['key']);    $setsqlarr['key']=str_replace(","," ",$resume_basic['intention_jobs'])." {$setsqlarr['key']} {$resume_basic['education_cn']}";    $setsqlarr['key']=$sp->pad($setsqlarr['key']);        if (!empty($resume_education))    {        //遍历教育经历所有字段，加入到数组里        foreach($resume_education as $li)        {        $setsqlarr['key']="{$li['school']} {$setsqlarr['key']} {$li['speciality']}";        }    }    $setsqlarr['refreshtime']=$timestamp;}//这里对教育经历做了次更新操作，二次注入由此产生！updatetable(table('resume'),$setsqlarr,"uid='{$uid}' AND id='{$pid}'");updatetable(table('resume_tmp'),$setsqlarr,"uid='{$uid}' AND id='{$pid}'");