Microsoft XML Core Services "substringData()" Integer Overflow

Secunia ID	SA26447
CVE-ID	CVE-2007-2223
Release Date	14 Aug 2007
Last Change	10 Jan 2008
Criticality	Highly Critical Typically used for remotely exploitable vulnerabilities that can lead to system compromise. Successful exploitation does not normally require any interaction but there are no known exploits available at the time of disclosure. Such vulnerabilities can exist in services like FTP, HTTP, and SMTP or in client systems like email programs or browsers.
Solution Status	Vendor Patch
Software	Microsoft Expression Web 1.x Microsoft Office 2003 Professional Edition Microsoft Office 2003 Small Business Edition Microsoft Office 2003 Standard Edition Microsoft Office 2003 Student and Teacher Edition Microsoft Office 2007 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Microsoft Office Groove Server 2007 Microsoft Office SharePoint Server 2007 Microsoft Office Word Viewer 2003 Microsoft XML Core Services (MSXML) 3.x Microsoft XML Core Services (MSXML) 4.x Microsoft XML Core Services (MSXML) 6.x
Where	From remote "From remote" describes other vulnerabilities where the attack vector doesn't require access to the system or a local network. This category covers services that are acceptable to expose to the Internet (e.g. HTTP, HTTPS, SMTP). It also covers client applications used on the Internet and certain vulnerabilities where it is reasonable to assume that a security conscious user can be tricked into performing certain actions.
Impact	System access This covers vulnerabilities where malicious people are able to gain system access and execute arbitrary code with the privileges of a local user.
Description	A vulnerability has been reported in Microsoft XML Core Services, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an integer overflow error in the "substringData()" method of an XMLDOM/TextNode JavaScript object. This can be exploited to cause a heap-based buffer overflow via specially-crafted arguments passed to the affected method. Successful exploitation may allow execution of arbitrary code when a user e.g. visits a malicious website.
Solution	Apply patches. Microsoft XML Core Services 3.0 for Windows 2000 SP4: http://www.microsoft.com/downloads/details.aspx?FamilyId=245214ea-76f9-4755-8a14-a74232e20c1c Microsoft XML Core Services 4.0 for Windows 2000 SP4: http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 6.0 for Windows 2000 SP4: http://www.microsoft.com/downloads/details.aspx?FamilyId=70C92E77-9E5A-41B1-A9D2-64443913C976 Microsoft XML Core Services 3.0 for Windows XP SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=dea6a48f-fb00-43f3-a374-3220f9759c2d Microsoft XML Core Services 3.0 for Windows XP Professional x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=b8862ca9-1203-4056-a257-29271838ac0d Microsoft XML Core Services 4.0 for Windows XP SP2 http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 4.0 for Windows XP Professional x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 6.0 for Windows XP SP2 http://www.microsoft.com/downloads/details.aspx?FamilyId=70C92E77-9E5A-41B1-A9D2-64443913C976 Microsoft XML Core Services 6.0 for Windows XP Professional x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=70C92E77-9E5A-41B1-A9D2-64443913C976 Microsoft XML Core Services 3.0 for Windows Server 2003 SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=12618ad0-aefd-4c9a-a769-4b14a7603d6e Microsoft XML Core Services 3.0 for Windows Server 2003 x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=61bf00a9-aeea-431a-86d3-526a4a373bb7 Microsoft XML Core Services 3.0 for Windows Server 2003 for Itanium-based systems SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=b0285dd7-bf66-4226-9948-26e8aae99046 Microsoft XML Core Services 4.0 for Windows Server 2003 SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 4.0 for Windows Server 2003 x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 4.0 for Windows Server 2003 for Itanium-based systems SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 6.0 for Windows Server 2003 SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=70C92E77-9E5A-41B1-A9D2-64443913C976 Microsoft XML Core Services 6.0 for Windows Server 2003 x64 Edition (optionally with SP2): http://www.microsoft.com/downloads/details.aspx?FamilyId=70C92E77-9E5A-41B1-A9D2-64443913C976 Microsoft XML Core Services 6.0 for Windows Server 2003 for Itanium-based systems SP1/SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=70C92E77-9E5A-41B1-A9D2-64443913C976 Microsoft XML Core Services 3.0 for Windows Vista: http://www.microsoft.com/downloads/details.aspx?FamilyId=c734d7de-5d87-4904-81c3-714db2cb8b0d Microsoft XML Core Services 3.0 for Windows Vista x64 Edition: http://www.microsoft.com/downloads/details.aspx?FamilyId=0a465d77-a737-4d26-82a1-570f9c788a8a Microsoft XML Core Services 4.0 for Windows Vista: http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 4.0 for Windows Vista x64 Edition: http://www.microsoft.com/downloads/details.aspx?FamilyId=021E12F5-CB46-43DF-A2B8-185639BA2807 Microsoft XML Core Services 6.0 for Windows Vista: http://www.microsoft.com/downloads/details.aspx?FamilyId=14270529-3ae5-43bf-a471-722ab010d81e Microsoft XML Core Services 6.0 for Windows Vista x64 Edition: http://www.microsoft.com/downloads/details.aspx?FamilyId=928da3d2-b0b9-447a-b37a-4350497fe563 Microsoft XML Core Services 5.0 in Microsoft Office 2003 Service Pack 2: http://www.microsoft.com/downloads/details.aspx?FamilyId=A339CB7B-E08A-47F8-AC0B-DF449191424A Microsoft XML Core Services 5.0 in 2007 Microsoft Office System: http://www.microsoft.com/downloads/details.aspx?FamilyId=7A97478A-832C-4A6B-B074-0E18B1E4ED33 Microsoft XML Core Services 5.0 in Microsoft Office SharePoint Server: http://www.microsoft.com/downloads/details.aspx?FamilyId=E875613B-2F32-4F28-A635-664A25C95C18 Microsoft XML Core Services 5.0 in Microsoft Office Groove Server 2007: http://www.microsoft.com/downloads/details.aspx?FamilyId=E875613B-2F32-4F28-A635-664A25C95C18 Microsoft XML Core Services 5.0 in Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats: http://www.microsoft.com/downloads/details.aspx?FamilyId=7A97478A-832C-4A6B-B074-0E18B1E4ED33 Microsoft XML Core Services 5.0 in Microsoft Expression Web: http://www.microsoft.com/downloads/details.aspx?FamilyId=7A97478A-832C-4A6B-B074-0E18B1E4ED33 Microsoft XML Core Services 5.0 in Microsoft Word Viewer 2003: http://www.microsoft.com/downloads/details.aspx?FamilyId=A339CB7B-E08A-47F8-AC0B-DF449191424A
Reported by	Independently discovered by: * An anonymous researcher, reported via iDefense Labs * An anonymous researcher, reported via ZDI
Original Advisory	MS07-042 (KB936227): http://www.microsoft.com/technet/security/Bulletin/MS07-042.mspx ZDI: http://www.zerodayinitiative.com/advisories/ZDI-07-048.html iDefense Labs: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=576