CVE-2021-22926
First published: Thu Aug 05 2021(Updated: )
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.
Credit: support@hackerone.com support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Haxx Curl | >=7.33.0<7.78.0 | |
| Netapp Active Iq Unified Manager Vmware Vsphere | ||
| Netapp Active Iq Unified Manager Windows | ||
| NetApp Clustered Data ONTAP | ||
| Netapp Hci Management Node | ||
| NetApp OnCommand Insight | ||
| NetApp OnCommand Workflow Automation | ||
| Netapp Snapcenter | ||
| Netapp Solidfire | ||
| Oracle Mysql Server | >=5.7.0<=5.7.35 | |
| Oracle Mysql Server | >=8.0.0<=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 | <1.0.1.1 | |
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| Netapp H300e Firmware | ||
| Netapp H300e | ||
| Netapp H500e Firmware | ||
| Netapp H500e | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| Netapp H700e Firmware | ||
| Netapp H700e | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| All of | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| All of | ||
| Netapp H300e Firmware | ||
| Netapp H300e | ||
| All of | ||
| Netapp H500e Firmware | ||
| Netapp H500e | ||
| All of | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| All of | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| All of | ||
| Netapp H700e Firmware | ||
| Netapp H700e | ||
| All of | ||
| Netapp H410s Firmware | ||
| Netapp H410s | ||
| Splunk Universal Forwarder | >=8.2.0<8.2.12 | |
| Splunk Universal Forwarder | >=9.0.0<9.0.6 | |
| Splunk Universal Forwarder | =9.1.0 |
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Reference Links
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://hackerone.com/reports/1234760
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cusers.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cusers.kafka.apache.org%3E
- https://security.gentoo.org/glsa/202212-01
- https://security.netapp.com/advisory/ntap-20210902-0003/
- https://security.netapp.com/advisory/ntap-20211022-0003/
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- 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%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E
Frequently Asked Questions
What is CVE-2021-22926?
CVE-2021-22926 is a vulnerability that affects libcurl-using applications and allows an application to ask for a specific client certificate to be used in a transfer.
How does CVE-2021-22926 impact macOS native TLS library Secure Transport?
If libcurl is built to use the macOS native TLS library Secure Transport, an application can ask for the client certificate, which can lead to potential security issues.
Which software is affected by CVE-2021-22926?
Haxx Curl, Apple iPadOS, Apple watchOS, NetApp Clustered Data ONTAP, Netapp Hci Management Node, NetApp OnCommand Insight, NetApp OnCommand Workflow Automation, Netapp Snapcenter, Netapp Solidfire, Oracle Mysql Server, Oracle PeopleSoft Enterprise PeopleTools, Siemens Sinec Infrastructure Network Services, Apple macOS Ventura, Netapp H300e Firmware, Netapp H500e Firmware, Apple macOS Big Sur, Netapp H700s Firmware, Netapp H410s Firmware, and Apple macOS Monterey are affected by this vulnerability.
How severe is CVE-2021-22926?
CVE-2021-22926 has a severity rating of 7.5, which is considered high.
Where can I find more information about CVE-2021-22926?
You can find more information about CVE-2021-22926 in the references provided: [Reference 1](https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf), [Reference 2](https://hackerone.com/reports/1234760), [Reference 3](https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cdev.kafka.apache.org%3E).
- agent/type
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/author
- agent/remedy
- agent/references
- agent/softwarecombine
- agent/description
- agent/event
- agent/first-publish-date
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/haxx
- canonical/haxx curl
- version/haxx curl/7.33.0
- vendor/netapp
- canonical/netapp active iq unified manager vmware vsphere
- canonical/netapp active iq unified manager windows
- canonical/netapp clustered data ontap
- canonical/netapp hci management node
- canonical/netapp oncommand insight
- canonical/netapp oncommand workflow automation
- canonical/netapp snapcenter
- canonical/netapp solidfire
- vendor/oracle
- canonical/oracle mysql server
- version/oracle mysql server/5.7.0
- version/oracle mysql server/5.7.35
- version/oracle mysql server/8.0.0
- version/oracle mysql server/8.0.26
- canonical/oracle peoplesoft enterprise peopletools
- version/oracle peoplesoft enterprise peopletools/8.57
- version/oracle peoplesoft enterprise peopletools/8.58
- version/oracle peoplesoft enterprise peopletools/8.59
- vendor/siemens
- canonical/siemens sinec infrastructure network services
- canonical/netapp h300s firmware
- canonical/netapp h300s
- canonical/netapp h300e firmware
- canonical/netapp h300e
- canonical/netapp h500e firmware
- canonical/netapp h500e
- canonical/netapp h500s firmware
- canonical/netapp h500s
- canonical/netapp h700s firmware
- canonical/netapp h700s
- canonical/netapp h700e firmware
- canonical/netapp h700e
- canonical/netapp h410s firmware
- canonical/netapp h410s
- vendor/splunk
- canonical/splunk universal forwarder
- version/splunk universal forwarder/8.2.0
- version/splunk universal forwarder/9.0.0
- version/splunk universal forwarder/9.1.0