CVE-2021-229267.5HighCWE-840

CVE-2021-22926: Haxx https://github.com/curl/curl vulnerability

Haxx · https://github.com/curl/curl

Vendor fix available · Affected: Haxx https://github.com/curl/curl · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

15.1%probability of exploitation in the next 30 days

96th percentile

050100

Higher than 96% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

https://github.com/curl/curlcurll 7.33.0 to and include 7.77.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Business Logic Errors · Input Validation and Logic
Vendor: Haxx
Published: August 2021
Band: Likely to be exploited (10% or more), August 2021
Bounty reports: 1 disclosed on HackerOne

Disclosed bug bounty reports about CVE-2021-22926

The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.

CVE-2021-22926: CURLOPT_SSLCERT mixup with Secure Transportcurl · 2021 · medium severityValid

CoverageNo articles yet

No CyberSIXT article names CVE-2021-22926 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

1 more reference is in the CVE record.