__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN InterActual Player SyscheckObject ActiveX Vulnerability [US-CERT Vulnerability Note VU#922969] March 22, 2007 20:00 GMT Number R-188 ______________________________________________________________________________ PROBLEM: A vulnerability exists in the IASystemInfo.dll library used by InterActual Player. PLATFORM: InterActual SyscheckObject ActiveX DAMAGE: Attacker may be able to execute arbitrary code. SOLUTION: We are currently unaware of a practical solution to this problem. Please disable the InterActual SyscheckObject ActiveX control in Internet Explorer. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. By convincing a user to view a specially ASSESSMENT: crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker may be able to execute arbitrary code with the privileges of the user. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-188.shtml ORIGINAL BULLETIN: http://www.kb.cert.org/vuls/id/922969 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-0348 ______________________________________________________________________________ [***** Start US-CERT Vulnerability Note VU#922969 *****] Vulnerability Note VU#922969 InterActual Player SyscheckObject ActiveX controls contain stack buffer overflows Overview InterActual Player provides multiple ActiveX controls that are vulnerable to buffer overflows. This can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system. I. Description InterActual Player is a video DVD playing application for Windows systems. InterActual Player was formerly known as InterActual PCFriendly. The InterActual Player software provides several ActiveX controls. ActiveX controls provided by IASystemInfo.dll are vulnerable to stack buffer overflows in the ApplicationType property. Note that some versions of InterActual WinDVD provide the vulnerable ActiveX controls. II. Impact By convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker may be able to execute arbitrary code with the privileges of the user. The attacker could also cause the web browser to crash. III. Solution We are currently unaware of a practical solution to this problem. Disable the InterActual SyscheckObject ActiveX control in Internet Explorer The vulnerable ActiveX controls can be disabled in Internet Explorer by setting the kill bit for the following CLSIDs: {B727C210-2022-11D4-B2C6-0050DA1BD906} {B727C212-2022-11D4-B2C6-0050DA1BD906} {B727C217-2022-11D4-B2C6-0050DA1BD906} {B727C219-2022-11D4-B2C6-0050DA1BD906} {B727C21B-2022-11D4-B2C6-0050DA1BD906} {B727C21D-2022-11D4-B2C6-0050DA1BD906} {B727C220-2022-11D4-B2C6-0050DA1BD906} {B727C222-2022-11D4-B2C6-0050DA1BD906} More information about how to set the kill bit is available in Microsoft Support Document 240797. Alternatively, the following text can be saved as a .REG file and imported to set the kill bit for this control: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C210-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C212-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C217-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C219-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C21B-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C21D-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C220-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\ {B727C222-2022-11D4-B2C6-0050DA1BD906}] "Compatibility Flags"=dword:00000400 Disable ActiveX Disabling ActiveX controls in the Internet Zone (or any zone used by an attacker) appears to prevent exploitation of this and other ActiveX vulnerabilities. Instructions for disabling ActiveX in the Internet Zone can be found in the "Securing Your Web Browser" document. Systems Affected Vendor Status Date Updated InterActual Technologies, Inc. Vulnerable 21-Mar-2007 InterVideo Vulnerable 21-Mar-2007 References http://www.cert.org/tech_tips/securing_browser/#Internet_Explorer http://secunia.com/advisories/23032/ Credit This vulnerability was reported by Will Dormann of CERT/CC. This vulnerability was also independently discovered and publicly disclosed by Carsten Eiram of Secunia Research before a coordinated release date could be reached. This document was written by Will Dormann. Other Information Date Public 03/21/2007 Date First Published 03/21/2007 03:09:55 PM Date Last Updated 03/21/2007 CERT Advisory CVE Name CVE-2007-0348 Metric 23.90 Document Revision 12 [***** End US-CERT Vulnerability Note VU#922969 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of US-CERT for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. 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A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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