Security Updates for Microsoft SharePoint Server and Microsoft Project Server (February 2018)
Medium Nessus Plugin ID 106806
SynopsisThe Microsoft SharePoint Server or Microsoft Project Server installation on the remote host is affected by multiple vulnerabilities.
DescriptionThe Microsoft SharePoint Server or Microsoft Project Server installation on the remote host is missing security updates.
It is, therefore, affected by multiple vulnerabilities :
- An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user. The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests. (CVE-2018-0864, CVE-2018-0869)
SolutionMicrosoft has released the following security updates to address this issue: