CVE-2019-1137 : Vulnerability Insights and Analysis
Learn about CVE-2019-1137, a cross-site-scripting vulnerability in Microsoft Exchange Server versions 2013, 2016, and 2019. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability known as cross-site-scripting (XSS) affects Microsoft Exchange Server versions 2013, 2016, and 2019. This vulnerability, also known as the 'Microsoft Exchange Server Spoofing Vulnerability,' allows specially crafted web requests to target susceptible Exchange servers.
Understanding CVE-2019-1137
This CVE identifies a cross-site-scripting vulnerability in Microsoft Exchange Server that can lead to spoofing attacks.
What is CVE-2019-1137?
CVE-2019-1137 is a cross-site-scripting vulnerability in Microsoft Exchange Server that arises from inadequate sanitization of web requests, enabling attackers to spoof Exchange servers.
The Impact of CVE-2019-1137
The presence of this vulnerability can result in spoofing attacks on affected Microsoft Exchange Server instances, potentially leading to unauthorized access and data manipulation.
Technical Details of CVE-2019-1137
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability in Microsoft Exchange Server allows malicious actors to execute cross-site-scripting attacks by sending specially crafted web requests to vulnerable servers.
Affected Systems and Versions
- Microsoft Exchange Server 2016: Cumulative Update 12, Cumulative Update 13
- Microsoft Exchange Server 2019: Cumulative Update 1, Cumulative Update 2
- Microsoft Exchange Server 2013: Cumulative Update 23
Exploitation Mechanism
Attackers exploit this vulnerability by sending malicious web requests to unpatched Microsoft Exchange Server instances, enabling them to spoof the server and potentially compromise sensitive data.
Mitigation and Prevention
Protecting systems from CVE-2019-1137 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Microsoft for the affected Exchange Server versions.
- Monitor network traffic for any suspicious activities that could indicate exploitation attempts.
Long-Term Security Practices
- Regularly update and patch Microsoft Exchange Server to mitigate known vulnerabilities.
- Implement web application firewalls and security protocols to prevent cross-site-scripting attacks.
Patching and Updates
Regularly check for security updates and patches released by Microsoft for Exchange Server to address vulnerabilities like CVE-2019-1137.