Published:2008/06/27  Last Updated:2008/07/07

JVN#18700809
Cybozu Garoon session fixation vulnerability

Overview

Cybozu Garoon, a groupware from Cybozu, contains a session fixation vulnerability.

Products Affected

  • Cybozu Garoon version 2.0.0 - 2.1.3

Description

Cybozu Garoon, a groupware from Cybozu, contains a session fixation vulnerability which may allow an attacker to impersonate a user when the user logs into Cybozu Garoon using a session ID provided by the attacker.

Impact

A remote attacker impersonating a logged in user may execute arbitrary code with the privilege of the user. As a result, disclosure or alteration of information may occur.

Solution

Update the Software
Apply the latest update provided by the vendor.

Vendor Status

Vendor Status Last Update Vendor Notes
Cybozu, Inc. Vulnerable 2008/06/27

References

JPCERT/CC Addendum

The vendor has published information on this problem on April 14 2008.

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.06.27

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 - little to no expertise and/or luck required to exploit (cross-site scripting)
  • High

Description of each analysis measures

Credit

Yoshihiro Ishikawa of LAC (Little eArth Corporation) reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2008-6569
JVN iPedia JVNDB-2008-000034

Update History