JVN#09872874 Movable Type access restriction bypass vulnerability

Overview

Movable Type contains an access restriction bypass vulnerability.

Products Affected

Movable Type 4.261 (Open Source) and earlier
Movable Type 4.261 (includes Professional and Community Packs) and earlier
Movable Type Commercial 4.261 (includes Professional Pack) and earlier
Movable Type Enterprise 4.261 and earlier
Movable Type 5.0 (Open Source)
Movable Type 5.0 (includes Professional and Community Packs)

Description

Movable Type, a web log system from Six Apart KK, contains a vulnerability that allows a remote attacker to bypass access restrictions.

This vulnerability is different from JVN#08369659.

Impact

A remote attacker may view or modify information stored by Movable Type.

Solution

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

Vendor Status

Vendor	Status	Last Update	Vendor Notes
Six Apart KK	Vulnerable	2010/01/06

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2010.01.06

Measures	Conditions	Severity
Access Required	Routed - can be attacked over the Internet using packets	High
Authentication	Limited - self-registration, perhaps valid e-mail	Medium-High
User Interaction Required	None - the vulnerability can be exploited without an honest user taking any action	High
Exploit Complexity	Low - little to no expertise and/or luck required to exploit (cross-site scripting)	High

Description of each analysis measures

Credit

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE
JVN iPedia	JVNDB-2010-000001