CVE-2021-41809 : Exploit Details and Defense Strategies
Learn about CVE-2021-41809, an SSRF vulnerability in M-Files Server products before 22.1.11017.1, impacting confidentiality and user interaction. Find mitigation steps and long-term security practices here.
M-Files Server products with versions before 22.1.11017.1 are affected by an SSRF vulnerability that allows requests from the server.
Understanding CVE-2021-41809
What is CVE-2021-41809?
CVE-2021-41809 is an SSRF vulnerability in M-Files Server products that enables making queries from the server with certain document types referencing external entities.
The Impact of CVE-2021-41809
This vulnerability has a low base score of 3.5 and affects confidentiality and user interaction, with low privileges required for exploitation.
Technical Details of CVE-2021-41809
Vulnerability Description
- SSRF vulnerability in M-Files Server products before version 22.1.11017.1
Affected Systems and Versions
- Product: M-Files Server
- Vendor: M-Files
- Version: Online
- Versions Affected: < 22.1.11017.1
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- User Interaction: Required
- Scope: Unchanged
Mitigation and Prevention
Immediate Steps to Take
- Update M-Files Server to version 22.1.11017.1 or later
- Monitor and restrict server requests to prevent unauthorized queries
Long-Term Security Practices
- Implement network controls to limit access to critical systems
- Educate users on recognizing and reporting suspicious activities
Patching and Updates
- Regularly apply security patches and updates for M-Files Server