By Chetan Raghuprasad.
Microsoft released its monthly security update Tuesday, disclosing 55 vulnerabilities in the company’s firmware and software. One of these vulnerabilities is considered critical, 40 are listed as high severity, and the remainder is considered “moderate.”
The most serious issue is CVE-2022-30136, a remote code execution vulnerability in the Windows Network File System (NFS) service, version NFSv4.1, with a severity score of near-maximum 9.8. An attacker can exploit the vulnerability over the network by making an unauthenticated, specially crafted call to a Network File System (NFS) service to execute remote code. To mitigate this vulnerability, users are advised to disable the vulnerable version NFSV4.1 and restart the NFS server or reboot the machine.
Microsoft SharePoint server contains a remote code execution vulnerability, CVE-2022-30157, with a severity score of 8.8. To exploit this vulnerability, the attacker must be authenticated and have the correct privileges to create a page on the vulnerable SharePoint server. If a targeted victim clicks on a specific page, it could trigger code remotely on the target server. If the adversary also has access to the server with the sandboxed Code Service enabled, they could execute the code in the context of the web service account.
Two other high-severity vulnerabilities,