December Microsoft Patch Tuesday Summary

Microsoft today patched 36 different vulnerabilities (+ Flash). Luckily, none of the vulnerabilities have been exploited in the wild of have been disclosed prior to today. The list includes the malware protection engine update that was released on Friday. Probably the most interesting vulnerability is the remote code execution in Windows RRAS. (CVE-2017-11885). According to Microsoft, this vulnerability can be exploited via RPC on servers that have routing enabled. (RRAS is the Routing and Remote Access Service). I am a bit confused why Microsoft rates this one only as "important". Maybe because RRAS is not enabled by default.

CVE		Description
Disclosed	Exploited	Exploitability (old versions)	current version	Severity
CVE-2017-11885		Windows RRAS Service Remote Code Execution Vulnerability
No	No	Less Likely	Less Likely	Important
CVE-2017-11889		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11890		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11893		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11895		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11899		Microsoft Windows Security Feature Bypass Vulnerability
No	No	Less Likely	Less Likely	Important
CVE-2017-11901		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11903		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11906		Scripting Engine Information Disclosure Vulnerability
No	No	More Likely	More Likely	Important
CVE-2017-11908		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11909		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11910		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11911		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11912		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11913		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Important
CVE-2017-11914		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11918		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11927		Microsoft Windows Information Disclosure Vulnerability
No	No	Less Likely	Less Likely	Important
CVE-2017-11930		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11932		Microsoft Exchange Spoofing Vulnerability
No	No	Less Likely	Less Likely	Important
CVE-2017-11937		Microsoft Malware Protection Engine Remote Code Execution Vulnerability
No	No	Less Likely	Less Likely	Critical
ADV170021		Microsoft Office Defense in Depth Update
No	No	More Likely	More Likely	None
ADV170023		Microsoft Exchange Defense in Depth Update
No	No	-	-	None
CVE-2017-11886		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11887		Scripting Engine Information Disclosure Vulnerability
No	No	More Likely	More Likely	Important
CVE-2017-11888		Microsoft Edge Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11894		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11907		Scripting Engine Memory Corruption Vulnerability
No	No	More Likely	More Likely	Critical
CVE-2017-11905		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Critical
CVE-2017-11916		Scripting Engine Memory Corruption Vulnerability
No	No	-	-	Important
CVE-2017-11919		Scripting Engine Information Disclosure Vulnerability
No	No	More Likely	More Likely	Important
CVE-2017-11934		Microsoft PowerPoint Information Disclosure Vulnerability
No	No	Less Likely	Less Likely	Important
CVE-2017-11935		Microsoft Excel Remote Code Execution Vulnerability
No	No	-	-	Important
CVE-2017-11936		Microsoft SharePoint Elevation of Privilege Vulnerability
No	No	-	-	Important
ADV170022		December 2017 Flash Security Update
No	No	-	-	Critical
CVE-2017-11939		Microsoft Office Information Disclosure Vulnerability
No	No	-	-	Important
CVE-2017-11940		Microsoft Malware Protection Engine Remote Code Execution Vulnerability
No	No	Less Likely	Less Likely	Critical

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Johannes B. Ullrich, Ph.D. , Dean of Research, SANS Technology Institute
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Dec 12th 2017

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Dec 12th 2017
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