CVE-2019-19616 Explained : Impact and Mitigation
Learn about CVE-2019-19616, an IDOR vulnerability in Xtivia Web Time and Expense interface used in Microsoft Dynamics NAV. Find out the impact, affected systems, and mitigation steps.
A security flaw known as Insecure Direct Object Reference (IDOR) has been discovered in the Xtivia Web Time and Expense (WebTE) interface, which is used in Microsoft Dynamics NAV versions prior to 2017. This vulnerability enables an unauthorized user to download files of their choice by manipulating the recId and filename parameters within the /Home/GetAttachment function.
Understanding CVE-2019-19616
This CVE involves an Insecure Direct Object Reference vulnerability in the Xtivia Web Time and Expense (WebTE) interface used in Microsoft Dynamics NAV before 2017.
What is CVE-2019-19616?
CVE-2019-19616 is an IDOR vulnerability that allows attackers to download arbitrary files by manipulating specific parameters in the WebTE interface.
The Impact of CVE-2019-19616
The vulnerability poses a medium severity risk with low confidentiality impact, no integrity impact, and low privileges required. It can be exploited remotely with low user interaction.
Technical Details of CVE-2019-19616
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability allows unauthorized users to download files by altering the recId and filename parameters in the /Home/GetAttachment function.
Affected Systems and Versions
- Microsoft Dynamics NAV versions before 2017
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Vector String: CVSS:3.0/AC:L/AV:N/A:N/C:L/I:N/PR:L/S:U/UI:N
Mitigation and Prevention
Protecting systems from CVE-2019-19616 is crucial to maintaining security.
Immediate Steps to Take
- Implement access controls to restrict unauthorized file downloads.
- Monitor and log access to sensitive files.
Long-Term Security Practices
- Regularly update Microsoft Dynamics NAV to the latest version.
- Conduct security assessments to identify and address vulnerabilities.
Patching and Updates
- Apply patches provided by Microsoft for the affected versions.