Microsoft Excel Multiple Code Execution Vulnerabilities

Secunia ID	SA28506
CVE-ID	CVE-2008-0081, CVE-2008-0111, CVE-2008-0112, CVE-2008-0114, CVE-2008-0115, CVE-2008-0116, CVE-2008-0117
Release Date	16 Jan 2008
Last Change	14 Mar 2008
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
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	Multiple vulnerabilities have been reported in Microsoft Excel, which can be exploited by malicious people to compromise a user's system. 1) An error in the handling of macros can be exploited via a specially crafted Excel file to execute arbitrary code. NOTE: According to Microsoft, this vulnerability is currently being actively exploited. 2) An error when processing data validation (DVAL) records can be exploited to corrupt memory via a specially crafted Excel file. 3) An error when importing files into Excel can be exploited via a specially crafted .slk file. 4) An error in the handling of style records can be exploited to corrupt memory via a specially crafted Excel file. 5) An error in the parsing of formulas can be exploited to corrupt memory via a specially crafted Excel file. 6) An error in the handling of rich text values can be exploited via a specially crafted Excel file. 7) An error in the handling of conditional formatting values can be exploited via a specially crafted Excel file. Successful exploitation of the vulnerabilities may allow execution of arbitrary code.
Solution	Apply patches. Excel 2000 SP3: http://www.microsoft.com/downloads/details.aspx?FamilyId=f7f90c30-1bfd-406b-a77f-612443e30185 Excel 2002 SP3: http://www.microsoft.com/downloads/details.aspx?FamilyId=907f96d5-d1e9-4471-b41c-3ac811e63038 Excel 2003 SP2: http://www.microsoft.com/downloads/details.aspx?FamilyId=296e5f2c-f594-41c8-a20a-3e4c40ae3948 Excel 2007: http://www.microsoft.com/downloads/details.aspx?FamilyId=e7634cb5-9531-4284-9554-4168fc488e0c Microsoft Office Excel Viewer 2003: http://www.microsoft.com/downloads/details.aspx?FamilyId=280bb2ac-b21a-46b5-8751-5a50fbebf107 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats: http://www.microsoft.com/downloads/details.aspx?FamilyId=e9251d71-9098-4125-ae91-7d4c83ea58ad Microsoft Office 2004 for Mac: http://www.microsoft.com/downloads/details.aspx?FamilyId=95DCEB37-B35F-46DB-B280-DB0F3B298AA9 Microsoft Office 2008 for Mac: http://www.microsoft.com/downloads/details.aspx?FamilyId=8FE8C32A-6D7A-482B-97C6-42562F089EE4
Reported by	1) Discovered as a 0-day. The vendor also credits Matt Richard, VeriSign. 2) Greg MacManus, iDefense Labs. 3) The vendor credits Yoshiya Sasaki, JFE Systems. 4) The vendor credits Bing Liu, Fortinet. 5) Reported by an anonymous person via iDefense Labs. 6) Cody Pierce, TippingPoint DVLabs. 7) The vendor credits Moti Joseph and Dan Hubbard, Websense Security Labs.
Original Advisory	MS08-014 (KB949029): http://www.microsoft.com/technet/security/Bulletin/MS08-014.mspx Microsoft (KB947563): http://www.microsoft.com/technet/security/advisory/947563.mspx iDefense Labs: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=671 http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=672 TippingPoint DVLabs: http://dvlabs.tippingpoint.com/advisory/TPTI-08-03