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.

Project Subscriptions

Vendors Products
Active Iq Unified Manager Subscribe
Clustered Data Ontap Subscribe
H300e Firmware Subscribe
H300s Firmware Subscribe
H410s Firmware Subscribe
H500e Firmware Subscribe
H500s Firmware Subscribe
H700e Firmware Subscribe
H700s Firmware Subscribe
Hci Management Node Subscribe
Oncommand Insight Subscribe
Oncommand Workflow Automation Subscribe
Snapcenter Subscribe
Solidfire Subscribe
Mysql Server Subscribe
Peoplesoft Enterprise Peopletools Subscribe
Siemens Subscribe
Sinec Infrastructure Network Services Subscribe
Universal Forwarder Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2024-08-03T18:58:25.857Z

Reserved: 2021-01-06T00:00:00

Link: CVE-2021-22926

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-08-05T21:15:11.553

Modified: 2024-11-21T05:50:56.047

Link: CVE-2021-22926

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-07-21T00:00:00Z

Links: CVE-2021-22926 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses