Improper Authentication Affecting curl package, versions *
Snyk CVSS
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Test your applications- Snyk ID SNYK-DEBIAN11-CURL-3366760
- published 21 Mar 2023
- disclosed 30 Mar 2023
Introduced: 21 Mar 2023
CVE-2023-27535 Open this link in a new tabHow to fix?
There is no fixed version for Debian:11 curl.
NVD Description
Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Debian:11.
See How to fix? for Debian:11 relevant fixed versions and status.
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.