Recent Server Security Updates – New Issues Facing Linux and Windows

Issues with Linux Servers

Recently, Linux servers have faced several critical vulnerabilities across the core components of multiple distributions, including the Linux kernel and user privilege systems. A new kernel vulnerability, recently discovered, can give attackers a method of executing unauthorized code remotely which could lead to attackers compromising the entire system. The newly discovered “sudo” privilege escalation issue raises further questions about managing access levels and privileges for the administration of the system. System administrators should patch their Linux distributions as soon as possible, appropriately patching the kernel and reviewing user privileges on a regular basis. It is also advisable to keep access tightly held and use a firewall for additional protection from being exploited.

Windows Server Latest News

Windows Server environments are also seeing large pressure following the discovery of a large security flaw in the Windows Server Update Services (WSUS). Simply put, if the server has not been patched, attackers could execute malicious code on the server remotely if successful, all due to the flaw. Microsoft has issued a critical patch for the vulnerability and has urged administrators to apply it immediately. In addition to ensuring that WSUS is in compliance, administrators should ensure they do the following: close any open ports, secure Active Directory permissions and enable monitoring since administrators cannot assume they prevented secure activity on the server any other way.

Conclusion

Both Linux and Windows servers are living through increasingly sophisticated threats in an effort to exploit critical functions of the respective systems. To have a secure and reliable hosting environment today, patching, strong configuration management, and constant monitoring are essential means to utilize.