Security News
If you've ever had a need to SSH into a Windows machine, Jack Wallen shows you how to make that possible with the help of PowerShell. I'm going to walk you through the process of installing the OpenSSH Server on Windows 10, configuring it to start at boot, and then show you how to log in from a Linux machine.
Security researchers discovered that attackers are also deploying a Linux backdoor on compromised e-commerce servers after injecting a credit card skimmer into online shops' websites. "After a day and a half, the attacker found a file upload vulnerability in one of the store's plugins. S/he then uploaded a webshell and modified the server code to intercept customer data."
Security researchers discovered that attackers are also deploying a Linux backdoor on compromised e-commerce servers after injecting a credit card skimmer into online shops' websites. "After a day and a half, the attacker found a file upload vulnerability in one of the store's plugins. S/he then uploaded a webshell and modified the server code to intercept customer data."
Microsoft has released out-of-band updates to address authentication failures related to Kerberos delegation scenarios impacting Domain Controllers running supported versions of Windows Server. These issues affect systems running Windows Server 2019 and lower versions, including Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 R2 SP1, and Windows Server 2008 SP2. The emergency updates address "a known issue that might cause authentication failures related to Kerberos tickets you acquired from Service for User to Self," a Microsoft announcement explained on Sunday.
What does system hardening encompass? Let's take server hardening as an example. While the former focus on pointing out configuration drift from specific compliance frameworks, and the latter can do that as well as enforcing hardening policies/configuration changes, they don't provide a solution for the entire hardening process like their CalCom Hardening Suite does.
Hackers stayed hidden for nine months on a server holding customer information for a Queensland water supplier, illustrating the need of better cyberdefenses for critical infrastructure. SunWater is Australian government-owned water supplier responsible for operating 19 major dams, 80 pumping stations, and 1,600 miles long pipelines.
Microsoft says users might experience authentication issues on Domain Controllers running Windows Server. These authentication issues impact systems running Windows Server 2019 and lower versions with certain Kerberos delegation scenarios.
Microsoft has released security updates as part of its monthly Patch Tuesday release cycle to address 55 vulnerabilities across Windows, Azure, Visual Studio, Windows Hyper-V, and Office, including fixes for two actively exploited zero-day flaws in Excel and Exchange Server that could be abused to take control of an affected system. The most critical of the flaws are CVE-2021-42321 and CVE-2021-42292, each concerning a post-authentication remote code execution flaw in Microsoft Exchange Server and a security bypass vulnerability impacting Microsoft Excel versions 2013-2021 respectively.
Microsoft has released security updates as part of its monthly Patch Tuesday release cycle to address 55 vulnerabilities across Windows, Azure, Visual Studio, Windows Hyper-V, and Office, including fixes for two actively exploited zero-day flaws in Excel and Exchange Server that could be abused to take control of an affected system. The most critical of the flaws are CVE-2021-42321 and CVE-2021-42292, each concerning a post-authentication remote code execution flaw in Microsoft Exchange Server and a security bypass vulnerability impacting Microsoft Excel versions 2013-2021 respectively.
Poorly configured Docker servers and being actively targeted by the TeamTNT hacking group in an ongoing campaign started last month. As illustrated in an attack workflow, the attack starts with creating a container on the vulnerable host using an exposed Docker REST API. TeamTNT then uses compromised, or actor-controlled Docker Hub accounts to host malicious images and deploy them on a targeted host.