CVE-2020-16978 : Security Advisory and Response
Learn about CVE-2020-16978, a cross-site scripting vulnerability in Microsoft Dynamics 365 (on-premises) allowing attackers to execute scripts in the security context of authenticated users. Find mitigation steps and preventive measures here.
Microsoft Dynamics 365 (on-premises) is affected by a cross-site scripting vulnerability that could allow an authenticated attacker to execute malicious scripts on the system. This CVE was published on October 16, 2020, with a CVSS base score of 5.4.
Understanding CVE-2020-16978
A detailed overview of the cross-site scripting vulnerability in Microsoft Dynamics 365 (on-premises).
What is CVE-2020-16978?
A cross-site scripting vulnerability in Microsoft Dynamics 365 (on-premises) allows attackers to execute scripts in the security context of authenticated users, potentially leading to unauthorized actions and data access.
The Impact of CVE-2020-16978
Exploiting this vulnerability could enable attackers to perform various malicious activities, including reading unauthorized content, impersonating users, modifying permissions, and injecting harmful content into users' browsers.
Technical Details of CVE-2020-16978
Insight into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability arises from inadequate sanitization of web requests to affected Dynamics servers, enabling attackers to send crafted requests and execute scripts.
Affected Systems and Versions
- Vendor: Microsoft
- Product: Microsoft Dynamics 365 (on-premises) version 9.0
- Platforms: Unknown
- Versions Affected: 9.0.0
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted requests to affected Dynamics servers, allowing them to execute scripts in the context of authenticated users.
Mitigation and Prevention
Guidelines to mitigate the risks associated with CVE-2020-16978.
Immediate Steps to Take
- Apply the security update provided by Microsoft to ensure proper sanitization of web requests.
- Monitor and restrict access to affected Dynamics servers to prevent unauthorized activities.
Long-Term Security Practices
- Regularly update and patch Microsoft Dynamics 365 to address security vulnerabilities promptly.
- Educate users on safe browsing practices and the risks associated with cross-site scripting attacks.
Patching and Updates
Ensure timely installation of security patches and updates from Microsoft to protect against known vulnerabilities.