Microsoft Office Excel Multiple Vulnerabilities

Secunia ID	SA31454
CVE-ID	CVE-2008-3003, CVE-2008-3004, CVE-2008-3005, CVE-2008-3006
Release Date	12 Aug 2008
Last Change	13 Aug 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 Excel 2000 Microsoft Excel 2002 Microsoft Excel 2003 Microsoft Excel Viewer 2003 Microsoft Office 2000 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 2004 for Mac Microsoft Office 2007 Microsoft Office 2008 for Mac Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Microsoft Office Excel 2007 Microsoft Office Excel Viewer 2007 Microsoft Office XP
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. Exposure of sensitive information Vulnerabilities where documents or credentials are leaked or can be revealed either locally or from remote.
Description	Multiple vulnerabilities have been reported in Microsoft Excel, which can be exploited by malicious people to gain knowledge of sensitive information or compromise a user's system. 1) Index values in "AxesSet" records are not properly validated when loading Excel files into memory. This can be exploited to corrupt memory via a specially crafted Excel file. Successful exploitation of the vulnerability may allow execution of arbitrary code. 2) An error during processing of "FORMAT" records when loading Excel files into memory can be exploited to corrupt memory via a specially crafted Excel file containing an out-of-bounds array index. Successful exploitation of the vulnerability may allow execution of arbitrary code. 3) An error during parsing of Country (0x8c) record values when loading Excel files into memory can be exploited to corrupt memory via a specially crafted Excel file. Successful exploitation of the vulnerability may allow execution of arbitrary code. 4) Passwords strings to remote data sources are not being properly deleted even when configured to not store credentials. This can be exploited to access secured remote data sources by opening an ".xlsx" file.
Solution	Apply patches. Excel 2000 SP3: http://www.microsoft.com/downloads/details.aspx?FamilyId=4bf8688e-e5b9-4e53-a1a1-8cf1acfdb80b Excel 2002 SP3: http://www.microsoft.com/downloads/details.aspx?FamilyId=9BBF7550-F5C4-4B9B-BD86-1E7BE6C42EB5 Excel 2003 SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=fc612e9a-bdf3-4952-8ada-0de5a50973f0 Excel 2003 SP3: http://www.microsoft.com/downloads/details.aspx?FamilyId=fc612e9a-bdf3-4952-8ada-0de5a50973f0 Excel 2007: http://www.microsoft.com/downloads/details.aspx?FamilyId=2753e8d6-e156-49ef-af2d-4c521c808ffd Excel 2007 SP1: http://www.microsoft.com/downloads/details.aspx?FamilyId=2753e8d6-e156-49ef-af2d-4c521c808ffd Microsoft Office Excel Viewer 2003: http://www.microsoft.com/downloads/details.aspx?FamilyId=d7ed9e75-15f2-4950-98b3-93023ba0f4c1 Microsoft Office Excel Viewer 2003 SP3: http://www.microsoft.com/downloads/details.aspx?FamilyId=d7ed9e75-15f2-4950-98b3-93023ba0f4c1 Microsoft Office Excel Viewer: http://www.microsoft.com/downloads/details.aspx?FamilyId=b574d906-7f09-49b0-80bf-e84dee8c4583 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats: http://www.microsoft.com/downloads/details.aspx?FamilyId=7afdae9b-9c74-4af7-9844-0e54221ea3b9 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1: http://www.microsoft.com/downloads/details.aspx?FamilyId=7afdae9b-9c74-4af7-9844-0e54221ea3b9 Microsoft Office 2004 for Mac: http://www.microsoft.com/downloads/details.aspx?FamilyId=EBD3AF0C-3F62-4D18-BF45-881655683BD5 Microsoft Office 2008 for Mac: http://www.microsoft.com/downloads/details.aspx?FamilyId=9515C70D-BE80-4ADE-856A-EA542F7D84E1
Reported by	1) An anonymous person, reported via VeriSign iDefense VCP. 2) An anonymous person, reported via VeriSign iDefense VCP. 3) An anonymous person, reported via TippingPoint and the Zero Day Initiative. 4) The vendor credits Jeremy Funk.
Original Advisory	MS08-043 (KB954066): http://www.microsoft.com/technet/security/Bulletin/MS08-043.mspx iDefense Labs: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=740 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=741 ZDI: http://www.zerodayinitiative.com/advisories/ZDI-08-048/