JVN#05123538 CGI RESCUE WebFORM vulnerable to cross-site scripting

Overview

WebFORM, released from CGI RESCUE, is a CGI script written in perl that allows a user to send email messages via a HTML form. WebFORM contains a cross-site scripting vulnerability.

Products Affected

WebFORM 4.3 and earlier

According to the vendor's website, another product Web Mailer also contains a similar vulnerability.
We have confirmed that the fixed version of the Web Mailer is also released from the vendor's website.

Description

Impact

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

Solution

Vendor Status

Vendor	Link
CGI RESCUE	http://www.rescue.ne.jp/
	http://www.rescue.ne.jp/cgi/webform/
	http://www.rescue.ne.jp/cgi/mailer/

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.01.25

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	Complex - the user must be convinced to take a difficult or suspicious action. If the honest user must have elevated privileges, they are likely to be more suspicious	Low
Exploit Complexity	Low - little to no expertise and/or luck required to exploit (cross-site scripting)	High

Description of each analysis measures

Credit

Tomoki Sanaki of International Network Security, Inc. 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
JVN iPedia	JVNDB-2007-000086