CVE-2021-22926
Description
libcurl-using applications can ask for a specific client certificate to be used in a transfer. This is done with the `CURLOPT_SSLCERT` option (`--cert` with the command line tool).When libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificate by name or with a file name - using the same option. If the name exists as a file, it will be used instead of by name.If the appliction runs with a current working directory that is writable by other users (like `/tmp`), a malicious user can create a file name with the same name as the app wants to use by name, and thereby trick the application to use the file based cert instead of the one referred to by name making libcurl send the wrong client certificate in the TLS connection handshake.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| haxx | curl | {"startIncluding":"7.33.0","endExcluding":"7.78.0"} | 7.78.0 |
| netapp | active_iq_unified_manager | - | |
| netapp | clustered_data_ontap | - | |
| netapp | hci_management_node | - | |
| netapp | oncommand_insight | - | |
| netapp | oncommand_workflow_automation | - | |
| netapp | snapcenter | - | |
| netapp | solidfire | - | |
| oracle | mysql_server | {"startIncluding":"5.7.0","endIncluding":"5.7.35"} | |
| oracle | mysql_server | {"startIncluding":"8.0.0","endIncluding":"8.0.26"} | |
| oracle | peoplesoft_enterprise_peopletools | 8.57 | |
| oracle | peoplesoft_enterprise_peopletools | 8.58 | |
| oracle | peoplesoft_enterprise_peopletools | 8.59 | |
| siemens | sinec_infrastructure_network_services | {"endExcluding":"1.0.1.1"} | 1.0.1.1 |
| netapp | h300s | - | |
| netapp | h300e | - | |
| netapp | h500e | - | |
| netapp | h500s | - | |
| netapp | h700s | - | |
| netapp | h700e | - | |
| netapp | h410s | - | |
| splunk | universal_forwarder | {"startIncluding":"8.2.0","endExcluding":"8.2.12"} | 8.2.12 |
| splunk | universal_forwarder | {"startIncluding":"9.0.0","endExcluding":"9.0.6"} | 9.0.6 |
| splunk | universal_forwarder | 9.1.0 | |
References
- https://www.suse.com/security/cve/CVE-2021-22926.html
- https://hackerone.com/reports/1234760
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://security.netapp.com/advisory/ntap-20210902-0003/
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://security.netapp.com/advisory/ntap-20211022-0003/
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://security.gentoo.org/glsa/202212-01
CWEs
CWE-840 CWE-295
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.