High Threat Security Alert (A19-04-02): Multiple Vulnerabilities in Microsoft Products (April 2019)

Description:

Microsoft has released security updates addressing multiple vulnerabilities and which affect several Microsoft products or components. The list of security updates can be found at:

https://support.microsoft.com/en-us/help/20190409/security-update-deployment-information-april-9-2019

Reports indicate active exploitation against the vulnerabilities in Microsoft Windows (CVE-2019-0803 and CVE-2019-0859) have been observed. Users are advised to take immediate action to patch your affected systems to mitigate the elevated risk of cyber attacks.

Affected Systems:

• Microsoft Internet Explorer 9, 10, 11
• Microsoft Edge
• Microsoft Windows 7, 8.1, RT 8.1, 10
• Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019
• Microsoft Windows Server, version 1709, version 1803
• Microsoft Office 2010, 2013, 2013 RT, 2016, 2016 for Mac, 2019, 2019 for Mac
• Microsoft Excel 2010, 2013, 2013 RT, 2016
• Office 365 ProPlus
• Microsoft SharePoint Enterprise Server 2013, 2016
• Microsoft SharePoint Foundation 2010, 2013
• Microsoft SharePoint Server 2010, 2019
• Microsoft Exchange Server 2010, 2013, 2016, 2019
• ASP.NET Core 2.2
• Azure DevOps Server 2019
• ChakraCore
• Open Enclave SDK
• Team Foundation Server 2015, 2017, 2018
• Windows Admin Center

A complete list of the affected products can be found at:
- https://portal.msrc.microsoft.com/en-us/security-guidance

Impact:

Depending on the vulnerability exploited, a successful attack could lead to remote code execution, information disclosure, security feature bypass, elevation of privilege, spoofing, tampering and denial of service.

Recommendation:

Patches for affected products are available from the Windows Update / Microsoft Update Catalog. Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.

More Information:

https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/18306ed5-1019-e911-a98b-000d3a33a34d
https://support.microsoft.com/en-us/help/20190409/security-update-deployment-information-april-9-2019
https://www.hkcert.org/my_url/en/alert/19041001
https://www.us-cert.gov/ncas/current-activity/2019/04/09/Microsoft-Releases-April-2019-Security-Updates
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV190011
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0685
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0688
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0730 (to CVE-2019-0732)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0735
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0739
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0752
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0753
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0764
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0786
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0790 (to CVE-2019-0796)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0801 (to CVE-2019-0803)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0805
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0806
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0810
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0812 (to CVE-2019-0815)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0817
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0822 (to CVE-2019-0831)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0833
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0835 (to CVE-2019-0842)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0844 (to CVE-2019-0849)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0851
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0853
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0856 (to CVE-2019-0862)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0866 (to CVE-2019-0871)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0874 (to CVE-2019-0877)
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0879