Published:2009/12/08  Last Updated:2009/12/24

Active! mail 2003 cookie disclosure vulnerability


Active! mail 2003 from TransWARE Co. contains a vulnerability in which cookies may be disclosed.

Products Affected

  • Active! mail 2003 Build 2003.0139.0871 and earlier
  • Active! mail 2003 Build 2003.0139.0911 and Build 2003.0139.0938 (if the configuration file "system.cfg" has not been fixed)

  • The above products are affected by this vulnerability when used in a SSL (https) environment.


Active! mail 2003 from TransWARE Co. is a web-based email software. Active! mail 2003 contains a vulnerability in which cookies may be disclosed.


A remote attacker could impersonate a user of Active! mail 2003. As a result, the user's email could be viewed or configurations could be modified.


Update the Software
Update to the latest version according to the information provided by the vendor.

Change the Setting
For Active! mail 2003 Build 2003.0139.0911 and Build 2003.0139.0938, this vulnerability can be addressed by fixing the configuration file "system.cfg".
For more information, refer to the vendor's website.

Vendor Status

Vendor Link
TransWARE Co. AM03SA2009-001 (Japanese Only)


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2009.12.08

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication None - anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required Simple - the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Medium
Exploit Complexity Low-Medium - some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Medium-High

Description of each analysis measures


Kenichi Maehashi of CIS RAT at Hosei University reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2009-4354
JVN iPedia JVNDB-2009-000077

Update History

Information under the sections "Vendor Status" and "Other Information" were modified.