Trustwave Rapid Response: CrowdStrike Falcon Outage Update. Learn More

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SpiderLabs Blog

Microsoft Patch Tuesday, January 2018

Happy 2018 everyone! January's Patch Tuesday will ease you into the new year with just 23 CVEs patched. Historically January has always been a light patch month. The release patches one CVE each that's rated "Critical", "Moderate" and "Low". The remianing 20 CVEs are rated "Important". This release also includes "Critical" rated patches for for Adobe Flash and an unrated "Defense in Depth" update for Microsoft Office. The majority of these patches affect the Office suite including some serious remote code execution vulnerabilities. .NET is also affected by multiple vulnerabilities, so .NET admins will want to make sure they are up to date.

Of course a light January Patch Tuesday doesn't mean that systems administrators are getting off easy. Unfortunately Meltdown and Spectre will likely keep IT staff in overdrive for the foreseeable future. Microsoft released an out of band advisory covering their response to these vulnerabilities here: https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180002

If you are unsure what Meltdown and Spectre are or how they might affect you, we have also put together an overview of these vulnerabilities here: https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/overview-of-meltdown-and-spectre/

 

Critical

January 2018 Adobe Flash Security Update
ADV180001
Remote Code Execution

Microsoft Word Memory Corruption Vulnerability
CVE-2018-0797
Remote Code Execution

 

Important

.NET and .NET Core Denial Of Service Vulnerability
CVE-2018-0764
Denial of Service

.NET Security Feature Bypass Vulnerability
CVE-2018-0786
Security Feature Bypass

ASP.NET Core Elevation Of Privilege Vulnerability
CVE-2018-0784
Elevation of Privilege

Microsoft Access Tampering Vulnerability
CVE-2018-0799
Tampering

Microsoft Edge Elevation of Privilege Vulnerability
CVE-2018-0803
Security Feature Bypass

Microsoft Excel Remote Code Execution
CVE-2018-0796
Remote Code Execution

Microsoft Office Information Disclosure Vulnerability
CVE-2018-0790
Information Disclosure

Microsoft Office Remote Code Execution Vulnerability
CVE-2018-0802, CVE-2018-0795, CVE-2018-0801
Remote Code Execution

Microsoft Office Spoofing Vulnerability
CVE-2018-0789
Spoofing

Microsoft Outlook Remote Code Execution
CVE-2018-0791, CVE-2018-0793
Remote Code Execution

Microsoft Word Remote Code Execution
CVE-2018-0798, CVE-2018-0812, CVE-2018-0792, CVE-2018-0794, CVE-2018-0805, CVE-2018-0806, CVE-2018-0807
Remote Code Execution

 

Moderate

ASP.NET Core Cross Site Request Forgery Vulnerability
CVE-2018-0785
Tampering

 

Low

Microsoft Word Remote Code Execution
CVE-2018-0804
Remote Code Execution

 

No Risk Rating

Microsoft Office Defense in Depth Update
ADV170021

 

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