How severe is CVE-2023-27535?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 5.9 out of 10.

What type of vulnerability is CVE-2023-27535?

This is classified as CWE-305, which is a common weakness in software security.

CVE-2023-27535 - MEDIUM Severity | CVSS 5.9

Vulnerability Description

An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information.

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