CVE-2019-0562 : Vulnerability Insights and Analysis
Learn about CVE-2019-0562, an elevation of privilege vulnerability in Microsoft SharePoint Server and Microsoft SharePoint, allowing attackers to gain elevated privileges. Find mitigation steps and prevention measures here.
A vulnerability known as elevation of privilege has been identified in Microsoft SharePoint Server and Microsoft SharePoint, potentially allowing attackers to gain elevated privileges on affected servers.
Understanding CVE-2019-0562
This CVE involves an elevation of privilege vulnerability in Microsoft SharePoint Server due to improper sanitization of web requests, impacting both Microsoft SharePoint Server 2019 and Microsoft SharePoint Enterprise Server 2013 Service Pack 1 and 2016.
What is CVE-2019-0562?
- The vulnerability arises from the failure to properly sanitize a web request targeting an affected SharePoint server.
- Referred to as the "Microsoft SharePoint Elevation of Privilege Vulnerability."
The Impact of CVE-2019-0562
- Attackers could exploit this vulnerability to elevate their privileges on the affected SharePoint servers.
Technical Details of CVE-2019-0562
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
- An elevation of privilege vulnerability exists in Microsoft SharePoint Server due to inadequate sanitization of specially crafted web requests.
Affected Systems and Versions
- Microsoft SharePoint Server 2019
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1
- Microsoft SharePoint Enterprise Server 2016
Exploitation Mechanism
- Attackers can exploit this vulnerability by sending a specially crafted web request to the targeted SharePoint server.
Mitigation and Prevention
Protecting systems from CVE-2019-0562 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly.
- Monitor network traffic for any suspicious activity.
- Implement the principle of least privilege to restrict user access.
Long-Term Security Practices
- Regularly update and patch SharePoint servers to address security vulnerabilities.
- Conduct security training for employees to enhance awareness of potential threats.
Patching and Updates
- Stay informed about security updates released by Microsoft for SharePoint products.
- Regularly check for and apply patches to ensure system security.