Advisory Details

October 13th, 2015

Microsoft Internet Explorer EditWith Sandbox Escape Vulnerability

ZDI-15-522
ZDI-CAN-3042

CVE ID CVE-2015-6047
CVSS SCORE 6.9, (AV:L/AC:M/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
VULNERABILITY DETAILS


This vulnerability allows remote attackers to escape the Application Container and execute code in the context of the logged-in user 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 EditWith functionality of the broker process for Internet Explorer. Code that is running in the AppContainer can use the DelegateExecute functionality of shell execution to execute arbitrary applications in the context of the user, not just applications that are in the Internet Explorer allowed list.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/en-us/library/security/MS15-106
DISCLOSURE TIMELINE
  • 2015-07-07 - Vulnerability reported to vendor
  • 2015-10-13 - Coordinated public release of advisory
CREDIT Ashutosh Mehra (https://twitter.com/ashutoshmehra)
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