KLA11172
Multiple vulnerabilities in Microsoft Development Tools

Multiple serious vulnerabilities have been found in Microsoft .NET Core, ASP.NET Core, Microsoft Excel and Microsoft Office Compatibility Pack. Malicious users can exploit these vulnerabilities to spoof user interface, obtain sensitive information, bypass security restrictions and gain privileges.

1. A remote code execution vulnerability can be exploited remotely via specially crafted file to execute arbitrary code;
2. An elevation of privilege vulnerability can be exploited remotely via specially crafted email with malicious link to gain privileges;
3. A Cross Site Request Forgery vulnerability can be exploited remotely via changing of recovery code for victim’s account to spoof user interface;
4. A security feature bypass vulnerability can be exploited remotely via using specially marked certificate to bypass security restrictions;

Technical details

Vulnerability (1) is related to Microsoft Excel and Microsoft Office Compatibility Pack.

Vulnerabilities (2) and (3) are related to ASP.NET Core.

Vulnerability (4) is related to .NET Core and Microsoft .NET Framework.

Microsoft Excel 2016 Click-to-Run (C2R) for 32-bit editions
Microsoft Excel 2016 Click-to-Run (C2R) for 64-bit editions
Microsoft Excel 2007 Service Pack 3
Microsoft Excel 2010 Service Pack 2 (32-bit editions)
Microsoft Excel 2010 Service Pack 2 (64-bit editions)
Microsoft Excel 2013 RT Service Pack 1
Microsoft Excel 2013 Service Pack 1 (32-bit editions)
Microsoft Excel 2013 Service Pack 1 (64-bit editions)
Microsoft Excel 2016 (32-bit edition)
Microsoft Excel 2016 (64-bit edition)
Microsoft Excel Viewer 2007 Service Pack 3
Microsoft Office Compatibility Pack Service Pack 3
ASP.NET Core 2.0
.NET Core 1.0
.NET Core 2.0
Microsoft .NET Framework 2.0 Service Pack 2
Microsoft .NET Framework 3.0 Service Pack 2
Microsoft .NET Framework 3.5
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 4.6.1
Microsoft .NET Framework 4.6.2
Microsoft .NET Framework 4.7
Microsoft .NET Framework 4.7.1

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

CVE-2018-0784
CVE-2018-0785
CVE-2018-0786
CVE-2018-0764

4056888
4056890
4056893
4056891
4056892
4054176
4054177
4054174
4054175
4054172
4054995
4054170
4054171
4054998
4054999
4054181
4054997
4054996
4054993
4055001
4055000
4055002
4054994
4054182
4054183
4074880