CVE-2019-0778 : Security Advisory and Response
Learn about CVE-2019-0778, a cross-site scripting vulnerability in Microsoft SharePoint Server, allowing attackers to execute malicious scripts. Find mitigation steps and preventive measures here.
A vulnerability known as cross-site scripting (XSS) has been identified in Microsoft SharePoint Server, potentially exposing affected systems to security risks.
Understanding CVE-2019-0778
This CVE involves a cross-site scripting vulnerability in Microsoft SharePoint Server, which could allow attackers to execute malicious scripts on the affected server.
What is CVE-2019-0778?
The vulnerability arises from inadequate sanitization of specially crafted web requests to a SharePoint server, leading to potential XSS attacks.
The Impact of CVE-2019-0778
The presence of this vulnerability could enable attackers to inject malicious scripts into web pages viewed by users, potentially compromising sensitive data and executing unauthorized actions.
Technical Details of CVE-2019-0778
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability in Microsoft SharePoint Server allows for the execution of XSS attacks by failing to properly sanitize specific web requests targeted at affected servers.
Affected Systems and Versions
- Microsoft SharePoint Foundation 2013 Service Pack 1
- Microsoft SharePoint Enterprise Server 2016
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted web requests to vulnerable SharePoint servers, injecting malicious scripts to execute unauthorized actions.
Mitigation and Prevention
Protecting systems from CVE-2019-0778 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly to address the vulnerability.
- Implement web application firewalls to filter and block malicious web requests.
Long-Term Security Practices
- Regularly update and patch Microsoft SharePoint servers to mitigate known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential security weaknesses.
Patching and Updates
Regularly check for security updates and patches released by Microsoft for SharePoint servers to ensure protection against known vulnerabilities.