CVE-2023-27535
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 subs…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Haxx | Libcurl | from 7.13.0 through 7.88.1 |
| Fedoraproject | Fedora | Version 36 |
| Debian | Debian Linux | Version 10.0 |
| Netapp | Active Iq Unified Manager | All versions |
| Netapp | Ontap 9 | All versions |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Splunk | Universal Forwarder | from 8.2.0 before 8.2.12 from 9.0.0 before 9.0.6 Version 9.1.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://hackerone.com/reports/1892780
- https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/
- https://security.gentoo.org/glsa/202310-12
- https://security.netapp.com/advisory/ntap-20230420-0010/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html
- https://cert-portal.siemens.com/productcert/html/ssa-943925.html