Microsoft SharePoint CVE-2019-1260 Remote Privilege Escalation Vulnerability

Description

Microsoft SharePoint is prone to a remote privilege-escalation vulnerability. An attacker may exploit this issue to gain elevated privileges. Successful exploits may aid in further attacks.

Technologies Affected

• Microsoft SharePoint Enterprise Server 2016
• Microsoft SharePoint Foundation 2010 SP2
• Microsoft SharePoint Foundation 2013 SP1
• Microsoft SharePoint Server 2019

Recommendations

Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Updates are available. Please see the references or vendor advisory for more information.