TmaxSoft JEUS Alternate Data Streams Vulnerability

`-----BEGIN PGP SIGNED MESSAGE-----  
Hash: SHA1  
  
Title: TmaxSoft JEUS Alternate Data Streams Vulnerability  
Author: Simon Ryeo(bar4mi (at) gmail)  
Severity: High  
Impact: Remote File Disclosure  
Vulnerable Version: < JEUS 5: Fix#26 on NTFS  
References:  
- http://www.microsoft.com/technet/security/bulletin/ms98-003.mspx  
- http://www.tmaxsoft.com  
- http://www.tmax.co.kr/tmaxsoft/index.screen  
History:  
- 10.22.2008: Initiate notify  
- 10.23.2008: The vendor responded  
- 11.21.2008: The vendor replied detail information.  
- 12.12.2008: The vendor finished the preparation for patches and  
responses.  
  
Description:  
On NTFS TmaxSoft JEUS, which is an famous web application server, contained  
a vulnerability that allows an attacker to obtain web application source  
files. This was caused by ADSs(Alternate Data Streams; ::$DATA).  
JEUS couldn't handle ::$DATA. So it treated test.jsp::$DATA as an normal  
file when it requested.  
This is similar to the past MS Widnows IIS vulnerability(Bid 0149).  
  
Exploit:  
The attacker can obtain them easily using an URL request.  
http://www.target.com/foo/bar.jsp::$DATA  
  
Solution:  
The vendor released solutions for this problem.  
Method 1) Upgrade JEUS  
- JEUS 5:  
http://technet.tmax.co.kr/kr/download/platformList.do?groupCode=WAS&product  
Code=Jeus&versionCode=5.0.0.26.P&fc=down&sc=down_product&mid=binary  
- JEUS 4:  
a. Use to change WebtoB function  
b. Upgrade JEUS to version 6 (the service for version 4 will be out of  
service after Dec 2009)  
Method 2) Use to change WebtoB fuction  
- Change the message communication method from 'URI' to 'EXT'  
(This is valid whether you use the embed WebtoB to JEUS or the single  
WebtoB)  
Method 3) Install the patch (ex. jext.jar)  
- The patch file will be valid until Jan. 2009  
(Target version: 3.3.7.15, 4.0, 4.1, 4.2 final, 5.x(each verison will be  
offered below Fix#26)  
  
Please refer to TmaxSoft Homepage for detail support palns. It will be  
valid until Mar. 2009.  
(http://www.tmaxsoft.com)  
  
-----BEGIN PGP SIGNATURE-----  
Version: 9.8.3.4028  
  
wj8DBQFJQqOXzuoR/xLtCioRAn2DAKDpN2ckXu7xt6OvYUeWHLiEoPQOmwCg6csI  
KY69SPNXHg2rHlXJanIBQDw=  
=SW3P  
-----END PGP SIGNATURE-----  
`