Advisory Details

December 8th, 2015

Microsoft Edge CAttrArray Out-Of-Bounds Read Remote Code Execution Vulnerability

ZDI-15-583
ZDI-CAN-3281

CVE ID CVE-2015-6168
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Edge
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 21930. 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 Edge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The vulnerability relates to how Microsoft Edge deletes elements from attribute arrays (as implemented by CAttrArray). By manipulating a document's elements an attacker can cause Edge to read memory outside the bounds of the array. An attacker can leverage this vulnerability to execute code under the context of the current process.

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/ms15-125.aspx
DISCLOSURE TIMELINE
  • 2015-09-03 - Vulnerability reported to vendor
  • 2015-12-08 - Coordinated public release of advisory
CREDIT SkyLined
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