Published:2013/12/03  Last Updated:2013/12/03

Cybozu Garoon vulnerable to session fixation


Cybozu Garoon contains a session fixation vulnerability.

Products Affected

  • Cybozu Garoon 3.7 Service Pack 1 and earlier


Cybozu Garoon provided by Cybozu,Inc. is a groupware. Cybozu Garoon contains a session fixation vulnerability.


A remote, unauthenticated attacker may impersonate a registered user. As a result, information may be disclosed or altered.


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

Vendor Status

Vendor Status Last Update Vendor Notes
Cybozu, Inc. Vulnerable 2013/12/03 Cybozu, Inc. website


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2013.12.03

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required 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
  • Mid
Exploit Complexity some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Mid-High

Description of each analysis measures


Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2013-6004
JVN iPedia JVNDB-2013-000117