JVN#76662040: Clipboard contents alteration vulnerability in Grani

Overview

Grani contains a vulnerability in which the contents of the clipboard may be altered.

Products Affected

Grani 4.5 and earlier

According to the developer, users who are using the version 4.5 that was released prior to November 25, 2010 at 3pm (Japan Time) with the default settings are affected by this vulnerability.

Description

Grani, a web browser provided by Fenrir, contains a vulnerability in which the contents of the clipboard may be altered. As a result, when Grani is being used under certain settings, the contents of the clipboard may be read or written from a website.

Impact

Contents contained in the clipboard may be leaked or altered.

Solution

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

Change the settings
For users who are already using version 4.5, change the settings according to the information provided by the developer.

Vendor Status

Vendor	Status	Last Update	Vendor Notes
Fenrir Inc.	vulnerable	2010/12/01

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2010.12.01

Measures	Conditions	Severity
Access Required	can be attacked over the Internet using packets	High
Authentication	anonymous or no authentication (IP addresses do not count)	High
User Interaction Required	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	Mid
Exploit Complexity	some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)	Mid-High

Description of each analysis measures

Credit

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2010-3919
JVN iPedia	JVNDB-2010-000058

JVN#76662040 Clipboard contents alteration vulnerability in Grani