CVE-2023-27535
30.03.2023, 20:15
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.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| haxx | libcurl | 7.13.0 ≤ 𝑥 ≤ 7.88.1 |
| debian | debian_linux | 10.0 |
| netapp | active_iq_unified_manager | - |
| netapp | ontap_9 | - |
| netapp | h300s_firmware | - |
| netapp | h500s_firmware | - |
| netapp | h700s_firmware | - |
| netapp | h410s_firmware | - |
| splunk | universal_forwarder | 8.2.0 ≤ 𝑥 < 8.2.12 |
| splunk | universal_forwarder | 9.0.0 ≤ 𝑥 < 9.0.6 |
| splunk | universal_forwarder | 9.1.0 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl |
| ||||||||||||||||||||||||||||||||||
| libcurl-devel |
| ||||||||||||||||||||||||||||||||||
| libcurl4 |
| ||||||||||||||||||||||||||||||||||
| libcurl4-32bit |
|
Red Hat Enterprise Linux Releases
Red Hat Product | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl |
| ||||||||||||||||||||
| curl-minimal |
| ||||||||||||||||||||
| libcurl |
| ||||||||||||||||||||
| libcurl-devel |
| ||||||||||||||||||||
| libcurl-minimal |
|
Common Weakness Enumeration
- CWE-305 - Authentication Bypass by Primary WeaknessThe authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
- CWE-287 - Improper AuthenticationWhen an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.
References