Advisory Details

August 22nd, 2012

Microsoft Internet Explorer MSADO CacheSize Remote Code Execution Vulnerability

CVE ID	CVE-2012-1891
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Internet Explorer 9
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['10761']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the MSADO component. When handling the a user specified CacheSize property the process uses this value to calculate the 'real' cache size. This value is used without proper validation. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser. This bug is a failed fix for CVE-2011-0027 / http://www.zerodayinitiative.com/advisories/ZDI-11-002/
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: http://technet.microsoft.com/en-us/security/bulletin/ms12-045
DISCLOSURE TIMELINE	2012-02-13 - Vulnerability reported to vendor 2012-08-22 - Coordinated public release of advisory
CREDIT	Anonymous

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