Advisory: Critical Cisco Jabber Bug Allows Authenticated, Remote Attacker Hack Systems

Advisory: Critical Cisco Jabber Bug Allows Authenticated, Remote Attacker Hack Systems Connect with us at www.Cornerstone.IT/contact for the latest updates. Keeshia Leopoldo, InfoSec Team Lead, Cornerstone.IT Who is affected? Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile Ask us how we can help secure your environment with the top 10-12 security enhancements every firm should have.  #ITCornerView Issue/Vulnerability Critical Cisco Jabber Bug Allows Authenticated, Remote Attacker Hack Systems Scope Cisco [...]

Advisory: Critical Cisco Jabber Bug Allows Authenticated, Remote Attacker Hack Systems2021-03-29T15:39:19-04:00

[Update] On-Premises Microsoft Exchange Server Zero-Day Vulnerability

Microsoft has released a patch to mitigate to this vulnerability, we can’t deny the fact that this security flaw has already been exploited by numerous criminal organization – developing into a new ransomware attack and other potential malicious activities. Check this post for options & solutions.

[Update] On-Premises Microsoft Exchange Server Zero-Day Vulnerability2021-03-16T13:33:35-04:00

Advisory: IE/Microsoft Edge (Legacy) Memory Corruption Vulnerability

Advisory: IE/Microsoft Edge (Legacy) Memory Corruption Vulnerability by Keeshia Leopoldo, InfoSec Team Lead Connect with us at www.Cornerstone.IT/contact for the latest updates. Ask us how we can help secure your environment with the top 10-12 security enhancements every firm should have.  #ITCornerView Issue/Vulnerability Internet Explorer/Microsoft Edge (Legacy) Memory Corruption Vulnerability [CVE-2021-26411, CVE-2021-27085] Scope In February, South Korean cybersecurity firm Enki disclosed that threat actors used an Internet Explorer zero-day vulnerability in attacks to install custom [...]

Advisory: IE/Microsoft Edge (Legacy) Memory Corruption Vulnerability2021-03-16T11:14:54-04:00

What to know about HAFNIUM Targeting Exchange Servers with 0-day exploits

On March 2, 2021, Microsoft released patches for multiple different on-premises Microsoft Exchange Server zero-day vulnerabilities. Read more.

What to know about HAFNIUM Targeting Exchange Servers with 0-day exploits2021-03-11T14:27:17-05:00

Advisory: HAFNIUM targeting Exchange Servers with 0-day Exploits

Hafnium operators deploy web shells on compromised server, creating software backdoors that allow attackers to steal data and perform additional malicious actions that lead to further compromise.

Advisory: HAFNIUM targeting Exchange Servers with 0-day Exploits2021-03-15T22:51:43-04:00

Microsoft Netlogon Vulnerability as of February 9, 2021

As of February 9, 2021, any Microsoft customer that has a supported version of Windows Server that is used as a Domain Controller in their environment will no longer allow legacy, unsupported Windows systems to talk to the supported Windows Server Domain Controller unless specific action takes place.

Microsoft Netlogon Vulnerability as of February 9, 20212021-02-03T13:39:48-05:00

Cornerstone.IT Enhances Its Managed Services with Netsurion Platinum Partnership

New York, NY, October 13, 2020 – Cornerstone Information Technologies, LLC (DBA Cornerstone.IT) has partnered with cybersecurity firm Netsurion to boost Cornerstone’s Managed Services with Netsurion’s Managed Threat Protection Platform, EventTracker, which includes Security Information and Event Management (SIEM). This platinum partnership—the highest level of collaboration with Netsurion—will add to Cornerstone’s already robust managed services.

Cornerstone.IT Enhances Its Managed Services with Netsurion Platinum Partnership2020-10-14T11:28:19-04:00

Windows 10 Versions 1803 & 1809 Enterprise & Education Editions Going End of Service

Microsoft Announcement: Windows 10 Versions 1803 & 1809 Enterprise & Education Editions Going End of Service Connect with us at www.Cornerstone.IT/contact for the latest updates. Include Windows 10 upgrade in your 2021 budget planning Ask us how we can help secure your environment with the top 10-12 security enhancements every firm should have.  #ITCornerView End-of-Service Announcement On May 11, 2021, Windows 10 versions 1803 and 1809 for Enterprise and Education editions will be going end [...]

Windows 10 Versions 1803 & 1809 Enterprise & Education Editions Going End of Service2021-02-03T09:41:38-05:00

Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance Security Update

Citrix ADVISORY: Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance Security Update Connect with us at www.Cornerstone.IT/contact for the latest updates. Citrix has announced multiple vulnerabilities have been discovered in Citrix ADC (formerly known as NetScaler ADC), Citrix Gateway (formerly known as NetScaler Gateway) and Citrix SD-WAN WANOP appliance models 4000-WO, 4100-WO, 5000-WO, and 5100-WO. Please install updates to remediate. Ask us how we can help secure your environment with the top 10-12 [...]

Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance Security Update2020-09-21T15:27:01-04:00