CVE-2018-1034 : Exploit Details and Defense Strategies

Microsoft SharePoint Server is affected by an elevation of privilege vulnerability, known as CVE-2018-1034, which allows specially crafted web requests to bypass proper sanitization. This vulnerability impacts Microsoft SharePoint Enterprise Server 2016.

Understanding CVE-2018-1034

This CVE identifies an elevation of privilege vulnerability in Microsoft SharePoint Server.

What is CVE-2018-1034?

The vulnerability arises from the failure of the affected SharePoint server to adequately sanitize specific web requests, enabling unauthorized elevation of privileges.

The Impact of CVE-2018-1034

Attackers can exploit this vulnerability to gain elevated privileges within the SharePoint environment, potentially leading to unauthorized access and control over sensitive data.

Technical Details of CVE-2018-1034

Microsoft SharePoint Server's elevation of privilege vulnerability is detailed below.

Vulnerability Description

An elevation of privilege flaw in Microsoft SharePoint Server allows specially crafted web requests to manipulate the server's sanitization process, leading to unauthorized privilege escalation.

Affected Systems and Versions

Product: Microsoft SharePoint
Vendor: Microsoft
Affected Version: Enterprise Server 2016

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious web requests that are not properly sanitized by the SharePoint server, enabling them to elevate their privileges within the system.

Mitigation and Prevention

Protect your systems from CVE-2018-1034 with the following measures.

Immediate Steps to Take

Apply security patches provided by Microsoft promptly.
Monitor and restrict network traffic to SharePoint servers.
Implement the principle of least privilege to limit user access.

Long-Term Security Practices

Regularly update and patch SharePoint servers to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses.

Patching and Updates

Stay informed about security advisories and updates from Microsoft to ensure timely patching of vulnerabilities.