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.
2023-03-30T20:15:07.483
2025-06-09T15:15:28.903
Modified
CVSSv3.1: 5.9 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | haxx | libcurl | ≤ 7.88.1 | Yes |
| Operating System | fedoraproject | fedora | 36 | Yes |
| Operating System | debian | debian_linux | 10.0 | Yes |
| Application | netapp | active_iq_unified_manager | - | Yes |
| Application | netapp | ontap_9 | - | Yes |
| Operating System | netapp | h300s_firmware | - | Yes |
| Hardware | netapp | h300s | - | No |
| Operating System | netapp | h500s_firmware | - | Yes |
| Hardware | netapp | h500s | - | No |
| Operating System | netapp | h700s_firmware | - | Yes |
| Hardware | netapp | h700s | - | No |
| Operating System | netapp | h410s_firmware | - | Yes |
| Hardware | netapp | h410s | - | No |
| Application | splunk | universal_forwarder | < 8.2.12 | Yes |
| Application | splunk | universal_forwarder | < 9.0.6 | Yes |
| Application | splunk | universal_forwarder | 9.1.0 | Yes |