Session fixation vulnerability in Cybozu Garoon 2.0.0 through 2.1.3 allows remote attackers to hijack web sessions via the session ID in the login page.
https://exchange.xforce.ibmcloud.com/vulnerabilities/43427
http://www.securityfocus.com/bid/29981
http://www.lac.co.jp/info/advisory/98.html
http://secunia.com/advisories/30871
http://jvndb.jvn.jp/ja/contents/2008/JVNDB-2008-000034.html