TITLE:
MailEnable Buffer Overflow and Directory Traversal Vulnerabilities

SECUNIA ADVISORY ID:
SA17633

VERIFY ADVISORY:
http://secunia.com/advisories/17633/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
MailEnable Enterprise Edition 1.x
http://secunia.com/product/4325/
MailEnable Professional 1.x
http://secunia.com/product/3474/

DESCRIPTION:
Secunia Research has discovered some vulnerabilities in Mail Enable
Professional/Enterprise, which can be exploited by malicious users to
cause a DoS (Denial of Service) and to compromise a vulnerable
system.

1) A boundary error exists in the IMAP service (MEIMAPS.EXE) when
handling an overly long mailbox name passed to "select", "create",
"delete", "rename", "subscribe", and "unsubscribe" commands. This can
be exploited by a malicious user to cause a stack-based buffer
overflow and allows arbitrary code execution.

2) Directory traversal error exists in the IMAP service (MEIMAP.EXE)
when handling specially crafted mailbox name passed to the "create"
and "rename" commands. This can be exploited by a malicious user to
create arbitrary directories on the server, or to cause a DoS by
renaming the mail directories of other users.

The vulnerabilities have been confirmed in the following versions:
* MailEnable Professional version 1.6 with Hotfix
MEIMAPS-UPD0511010000.zip applied.
* MailEnable Enterprise version 1.1 with Hotfix
MEIMAPS-UPD0511010000.zip applied.

Prior versions may also be affected.

SOLUTION:
Apply cumulative update (ME-10008):
http://www.mailenable.com/hotfix/ME-10008.EXE

The vulnerabilities have also been fixed in MailEnable Professional
Edition version 1.7.

PROVIDED AND/OR DISCOVERED BY:
Tan Chew Keong, Secunia Research.

ORIGINAL ADVISORY:
MailEnable:
http://www.mailenable.com/hotfix/

Secunia Research:
http://secunia.com/secunia_research/2005-59/advisory/

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About:
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