Headline
CVE-2011-1961: Windows URL Protocol Handler may insecurely load executable files
The telnet URI handler in Microsoft Internet Explorer 6 through 9 does not properly launch the handler application, which allows remote attackers to execute arbitrary programs via a crafted web site, aka “Telnet Handler Remote Code Execution Vulnerability.”
Published:2011/08/10 Last Updated:2011/08/10
Overview
Windows URL Protocol Handler may use unsafe methods for determining how to load executable (.exe) files.
Products Affected
Products that use the Windows URL Protocol Handler may be affected.
For more information, refer to the developer’s website.
Description
Windows URL Protocol Handler loads a specified executable for each protocol. Windows URL Protocol Handler contains an issue with the file search path, which may insecurely load executable files.
Impact
An attacker may execute arbitrary code with the privilege of the running application.
Solution
Update the Software
Apply the MS11-057 according to the information provided by Microsoft.
Vendor Status
References
- IPA
Security Alert for Windows Vulnerability
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2011.08.10
Credit
Makoto Shiotsuki of Security Professionals Network Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
Update History
2011/08/10
Information under the sections “References” were modified.