CVE Catalog

CVE-2021-47755

High
Published: Translated: NVD NIST

Summary

Oliver Library Server v5 contains a file download vulnerability that allows unauthenticated attackers to access arbitrary system files through unsanitized input in the FileServlet endpoint. Attackers can exploit the vulnerability by manipulating the 'fileName' parameter to download sensitive files from the server's filesystem.

Risk Assessment

An attacker can access sensitive files such as configurations, user data, or keys, potentially leading to data breaches and further attacks on the infrastructure.

Recommendation

It is recommended to immediately update Oliver Library Server to the latest patched version. Additionally, restrict access to the FileServlet endpoint and implement input validation for parameters.

Related vulnerabilities

Original NVD description (English source)

Oliver Library Server v5 contains a file download vulnerability that allows unauthenticated attackers to access arbitrary system files through unsanitized input in the FileServlet endpoint. Attackers can exploit the vulnerability by manipulating the 'fileName' parameter to download sensitive files from the server's filesystem.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS