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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Debian / debian_linux10.0 – 10.0
- fedoraproject / fedora36 – 36
- haxx / libcurl7.13.0 – 7.88.1
- NetApp / active_iq_unified_manager
- NetApp / h300s_firmware
- NetApp / h410s_firmware
- NetApp / h500s_firmware
- NetApp / h700s_firmware
- NetApp / ONTAP 9
- Splunk / Universal Forwarder8.2.0 – 8.2.12
- Splunk / Universal Forwarder9.1.0 – 9.1.0
References
- MISChttps://hackerone.com/reports/1892780
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/
- MISChttps://security.netapp.com/advisory/ntap-20230420-0010/
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2023/04/msg00025.html
- MISChttps://security.gentoo.org/glsa/202310-12
Updated 16m ago · 8 sources