Sentinel Query: Detect ZeroLogon (CVE-2020-1472)

In August 2020 Microsoft patched the ZeroLogon vulnerability CVE-2020-1472. In summary, this vulnerability would allow an attacker with a foothold in your network to become a domain admin in a few clicks. The attacker only needs to establish a network connection towards the domain controller. At NVISO we are supporting multiple clients with our MDR […]

OpenSSH User Enumeration Vulnerability: a Close Look

Intro An OpenSSH user enumeration vulnerability (CVE-2018-15473) became public via a GitHub commit. This vulnerability does not produce a list of valid usernames, but it does allow guessing of usernames. In this blog post, we take a closer look at this vulnerability and propose mitigation and monitoring actions. Technical details This vulnerability manifests itself in […]