An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection.
References
Link | Resource |
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https://hackerone.com/reports/1898475 | Exploit Third Party Advisory |
https://hackerone.com/reports/1898475 | Exploit Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html | Mailing List |
https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html | Mailing List |
https://security.gentoo.org/glsa/202310-12 | Third Party Advisory |
https://security.gentoo.org/glsa/202310-12 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20230420-0010/ | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20230420-0010/ | Third Party Advisory |
Configurations
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History
09 Jun 2025, 15:15
Type | Values Removed | Values Added |
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References | () https://hackerone.com/reports/1898475 - Exploit, Third Party Advisory | |
References | () https://security.gentoo.org/glsa/202310-12 - Third Party Advisory | |
References | () https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html - Mailing List | |
References | () https://security.netapp.com/advisory/ntap-20230420-0010/ - Third Party Advisory |
27 Mar 2024, 14:46
Type | Values Removed | Values Added |
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First Time |
Splunk
Splunk universal Forwarder |
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CPE | cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
20 Oct 2023, 18:43
Type | Values Removed | Values Added |
---|---|---|
CPE | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:a:netapp:clustered_data_ontap:9.0:-:*:*:*:*:*:* cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* |
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First Time |
Broadcom
Netapp active Iq Unified Manager Netapp clustered Data Ontap Netapp h500s Debian Netapp h700s Firmware Netapp h410s Firmware Netapp h300s Debian debian Linux Netapp h410s Broadcom brocade Fabric Operating System Firmware Netapp h700s Netapp Netapp h300s Firmware Netapp h500s Firmware |
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References | (CONFIRM) https://security.netapp.com/advisory/ntap-20230420-0010/ - Third Party Advisory | |
References | (GENTOO) https://security.gentoo.org/glsa/202310-12 - Third Party Advisory | |
References | (MLIST) https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html - Mailing List |
11 Oct 2023, 11:15
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References |
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21 Apr 2023, 23:15
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References |
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20 Apr 2023, 09:15
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References |
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19 Apr 2023, 20:15
Type | Values Removed | Values Added |
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References |
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Summary | An authentication bypass vulnerability exists in libcurl prior to v8.0.0 where it reuses a previously established SSH connection despite the fact that an SSH option was modified, which should have prevented reuse. libcurl maintains a pool of previously used connections to reuse them for subsequent transfers if the configurations match. However, two SSH settings were omitted from the configuration check, allowing them to match easily, potentially leading to the reuse of an inappropriate connection. |
14 Apr 2023, 00:15
Type | Values Removed | Values Added |
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References |
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10 Apr 2023, 16:36
Type | Values Removed | Values Added |
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CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
CWE | CWE-287 | |
References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/ - Mailing List, Third Party Advisory | |
References | (MISC) https://hackerone.com/reports/1898475 - Exploit, Third Party Advisory | |
CPE | cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
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First Time |
Haxx
Fedoraproject fedora Haxx libcurl Fedoraproject |
09 Apr 2023, 04:16
Type | Values Removed | Values Added |
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References |
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Information
Published : 2023-03-30 20:15
Updated : 2025-06-09 15:15
NVD link : CVE-2023-27538
Mitre link : CVE-2023-27538
JSON object : View
Products Affected
debian
- debian_linux
netapp
- h500s
- h410s
- clustered_data_ontap
- h300s
- h700s_firmware
- h500s_firmware
- h410s_firmware
- h700s
- active_iq_unified_manager
- h300s_firmware
fedoraproject
- fedora
haxx
- libcurl
splunk
- universal_forwarder
broadcom
- brocade_fabric_operating_system_firmware
CWE
CWE-287
Improper Authentication