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Secunia Research: MailEnable IMAP Service Two Vulnerabilities

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                     Secunia Research 30/11/2006

           - MailEnable IMAP Service Two Vulnerabilities -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

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1) Affected Software 

MailEnable Professional Edition Version 2.32.

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Moderately Critical
Impact: System Access
        Denial of Service
Where:  From Remote

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3) Vendor's Description of Software

"MailEnable's mail server software provides a powerful, scalable
hosted messaging platform for Microsoft Windows. MailEnable? offers
stability, unsurpassed flexibility and an extensive feature set which
allows you to provide cost-effective mail services."

Product Link:
http://www.mailenable.com/default.asp

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4) Description of Vulnerability

Secunia Research has discovered two vulnerabilities in MailEnable,
which can be exploited by malicious users to cause a DoS (Denial of
service) or compromise a vulnerable system.

1) A boundary error in the handling of arguments passed to the EXAMINE
and SELECT commands within the IMAP service (MEIMAPS.EXE) can be
exploited to cause a stack-based buffer overflow via an overly long
argument.

Successful exploitation allows execution of arbitrary code.

2) An input validation error in the handling of arguments passed to
the DELETE command within the IMAP service (MEIMAPS.EXE) can be
exploited to cause a stack overflow and crash the service by sending
an overly long argument consisting of "*" or "?" characters.

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5) Solution 

Apply hotfix ME-10020:
http://www.mailenable.com/hotfix/ME-10020.ZIP

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6) Time Table 

27/11/2006 - Vendor notified.
30/11/2006 - Vendor response with hotfix information.
30/11/2006 - Public disclosure.

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7) Credits 

Discovered by JJ Reyes, Secunia Research.

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8) References

N/A

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below to
see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/ 

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-71/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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