CVE-2021-22926CWE-295

CVE-2021-22926

High · published August 6, 2021

CVSS v3.1
7.5
EPSS
15%
Percentile
96.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.15140 · 96.7th percentile
Weakness
CWE-295 · Improper Certificate Validation
Published
2021-08-06T01:15Z
Affected products (25)
ProductVersionsFixed in
haxx/curl≥ 7.33.0, < 7.78.07.78.0
netapp/active_iq_unified_managerall versions—
netapp/active_iq_unified_managerall versions—
netapp/clustered_data_ontapall versions—
netapp/hci_management_nodeall versions—
netapp/oncommand_insightall versions—
netapp/oncommand_workflow_automationall versions—
netapp/snapcenterall versions—
netapp/solidfireall versions—
oracle/mysql_server≥ 5.7.0, ≤ 5.7.35—
oracle/mysql_server≥ 8.0.0, ≤ 8.0.26—
oracle/peoplesoft_enterprise_peopletoolsall versions—
oracle/peoplesoft_enterprise_peopletoolsall versions—
oracle/peoplesoft_enterprise_peopletoolsall versions—
siemens/sinec_infrastructure_network_services< 1.0.1.11.0.1.1
netapp/h300s_firmwareall versions—
netapp/h300e_firmwareall versions—
netapp/h500e_firmwareall versions—
netapp/h500s_firmwareall versions—
netapp/h700s_firmwareall versions—
netapp/h700e_firmwareall versions—
netapp/h410s_firmwareall versions—
splunk/universal_forwarder≥ 8.2.0, < 8.2.128.2.12
splunk/universal_forwarder≥ 9.0.0, < 9.0.69.0.6
splunk/universal_forwarderall versions—
References (24)
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf · [email protected]https://hackerone.com/reports/1234760 · [email protected]https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E · [email protected]https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E · [email protected]https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E · [email protected]https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E · [email protected]https://security.gentoo.org/glsa/202212-01 · [email protected]https://security.netapp.com/advisory/ntap-20210902-0003/ · [email protected]https://security.netapp.com/advisory/ntap-20211022-0003/ · [email protected]https://www.oracle.com/security-alerts/cpujan2022.html · [email protected]https://www.oracle.com/security-alerts/cpuoct2021.html · [email protected]https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf · af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1234760 · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E · af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202212-01 · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210902-0003/ · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211022-0003/ · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2022.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.html · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-389290.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-398330.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 05 AUG 00:00Z
    libcurl-using applications can ask for a specific client certificate to be used in a transfer
    cvelistv5