JVN#01115659 REP-BBS from MT312 vulnerable to cross-site scripting

Overview

REP-BBS from MT312 contains a cross-site scripting vulnerability.

Products Affected

REP-BBS

Note that versions of REP-BBS (repbbs.lzh) that contain "model.php" and "config.php" with a timestamp prior to May 21, 2009 are vulnerable.

Description

REP-BBS from MT312, is a web log system that supports posting and viewing web logs from a mobile phone. REP-BBS contains a cross-site scripting vulnerability.

Impact

An arbitrary script may be executed on the user's web browser.

Solution

Update the software
Update the software to the latest version at MT312 (repbbs.lzh)

Vendor Status

Vendor	Link
MT312	MT312.com Web Application Factory (Japanese Only)
	REP-BBS (Japanese Only)

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2009.05.29

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

Masako Oono reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2009-1880
JVN iPedia	JVNDB-2009-000033