JVN#84430861 Sage vulnerable to arbitrary script execution

Overview

Sage is an RSS and Atom feed reader extension for Mozilla Firefox. If a malicious script is embedded in an RSS feed, Sage does not properly handle the data, which may allow an arbitrary script to be executed on a user's web browser.

Products Affected

Sage 1.3.9 and earlier

This vulnerability affects Sage++ as well.
As of February 9, 2007, Sage++ is no longer available and is no longer being updated. It is recommended that Sage++ users use the latest version of Sage.

Description

Impact

An arbitrary script may be executed on Mozilla Firefox. For example, local files could be accessed.

Solution

Vendor Status

Vendor	Link
Sage	Sage 1.3.10 Released
	Sage: Install

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.02.09

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

Daiki Fukumori of Secure Sky Technology, 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-2007-000134