CVE-2020-1482 : Vulnerability Insights and Analysis
Learn about CVE-2020-1482, a cross-site scripting vulnerability in Microsoft SharePoint Server, allowing unauthorized access and actions. Find mitigation steps and preventive measures here.
On September 8, 2020, Microsoft disclosed a cross-site scripting (XSS) vulnerability affecting various versions of Microsoft SharePoint.
Understanding CVE-2020-1482
This CVE identifies a security flaw that could allow an authenticated attacker to execute XSS attacks on affected SharePoint servers.
What is CVE-2020-1482?
A cross-site-scripting (XSS) vulnerability in Microsoft SharePoint Server could enable an attacker to execute script in the context of the current user, potentially leading to unauthorized actions and data access.
The Impact of CVE-2020-1482
The exploitation of this vulnerability could result in various malicious activities, including unauthorized data access, identity misuse, and injection of harmful content into user browsers.
Technical Details of CVE-2020-1482
This section delves into the specific technical aspects of the vulnerability.
Vulnerability Description
The XSS vulnerability in Microsoft SharePoint Server occurs due to inadequate sanitization of web requests, allowing attackers to exploit the flaw and launch XSS attacks.
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016 (Version: 16.0.0)
- Microsoft SharePoint Server 2019 (Version: 16.0.0)
- Microsoft SharePoint Foundation 2010 Service Pack 2 (Version: 13.0.0)
- Microsoft SharePoint Foundation 2013 Service Pack 1 (Version: 15.0.0)
Exploitation Mechanism
- Attacker sends a specifically crafted web request to the vulnerable SharePoint server
- Successful exploitation leads to cross-site scripting attacks and script execution in the user's security context
Mitigation and Prevention
Actions to mitigate the risks associated with CVE-2020-1482.
Immediate Steps to Take
- Apply the security update provided by Microsoft to address the vulnerability
- Monitor SharePoint servers for any unauthorized activities or attempts
Long-Term Security Practices
- Regularly update and patch Microsoft SharePoint to prevent potential vulnerabilities
- Educate users on identifying and avoiding suspicious web requests
Patching and Updates
Ensure timely application of security patches and updates to safeguard SharePoint environments.