CVE-2021-45027 : Vulnerability Insights and Analysis
Learn about CVE-2021-45027, an arbitrary file download vulnerability in Oliver v5 Library Server Versions < 5.00.008.053, allowing attackers to download files via FileServlet function. Find mitigation steps and prevention measures.
This CVE involves an arbitrary file download vulnerability in Oliver v5 Library Server Versions < 5.00.008.053 via the FileServlet function, allowing attackers to download files using unsanitized user input.
Understanding CVE-2021-45027
What is CVE-2021-45027?
An arbitrary file download vulnerability in Oliver v5 Library Server Versions < 5.00.008.053 allows attackers to download files by exploiting the FileServlet function.
The Impact of CVE-2021-45027
This vulnerability enables attackers to perform arbitrary file downloads through unsanitized user input, potentially exposing sensitive information.
Technical Details of CVE-2021-45027
Vulnerability Description
The vulnerability exists in Oliver v5 Library Server Versions < 5.00.008.053, allowing attackers to download files using the FileServlet function.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Versions Affected: < 5.00.008.053
Exploitation Mechanism
Attackers exploit unsanitized user input through the FileServlet function to download arbitrary files.
Mitigation and Prevention
Immediate Steps to Take
- Update Oliver v5 Library Server to version 5.00.008.053 or later.
- Implement input sanitization to prevent arbitrary file downloads.
Long-Term Security Practices
- Regularly monitor and audit file download activities.
- Educate users on safe file handling practices.
Patching and Updates
Apply security patches and updates promptly to address and mitigate the vulnerability.