Advisory Details

December 8th, 2015

Microsoft Windows VBScript CreateObject Function Use-After-Free Information Disclosure Vulnerability

CVE ID	CVE-2015-6135
CVSS SCORE	4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Internet Explorer
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose the contents of memory on applications using the VBScript scripting language on vulnerable installations of Microsoft Windows. Microsoft Internet Explorer is an affected application. 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 implementation of the VBScript CreateObject function. By supplying specially crafted parameters, an attacker can disclose the contents of memory. An attacker can use this information in conjunction with other vulnerabilities to execute arbitrary code in 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/ms15-124.aspx
DISCLOSURE TIMELINE	2015-09-22 - Vulnerability reported to vendor 2015-12-08 - Coordinated public release of advisory
CREDIT	Simon Zuckerbraun - HP Zero Day Initiative

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