JVN#33880169: Opera may insecurely load executable files

Overview

Opera may use unsafe methods for determining how to load executables (.exe).

Products Affected

Opera prior to 11.01

Description

Opera loads certain executables (.exe) when opening the folder where downloaded contents are stored. Opera contains an issue with the file search path, which may insecurely load executables.

Impact

An attacker may execute arbitrary code with the privilege of running the application.

Solution

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

This issue has been resolved in Opera 11.01.

Vendor Status

Vendor	Link
Opera	Advisory: The wrong executable may be used to display a downloaded file in its folder
	Opera 11.01 for Windows changelog
	OPERA DESKTOP TEAM

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2011.02.02

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	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 suspiciouse	High

Description of each analysis measures

Credit

Makoto Shiotsuki 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-2011-0450
JVN iPedia	JVNDB-2011-000010

JVN#33880169 Opera may insecurely load executable files