CVE-2024-2466

Public Exploit
TLS certificate check bypass with mbedTLS

Description

libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.15%
Vendor Advisory curl.se Vendor Advisory curl.se Vendor Advisory apple.com Vendor Advisory apple.com Vendor Advisory apple.com
Affected: curl curl
Published at:
Updated at:

References

Link Tags
https://curl.se/docs/CVE-2024-2466.json vendor advisory
https://curl.se/docs/CVE-2024-2466.html vendor advisory
https://hackerone.com/reports/2416725 third party advisory issue tracking exploit
http://www.openwall.com/lists/oss-security/2024/03/27/4 third party advisory mailing list
https://security.netapp.com/advisory/ntap-20240503-0010/ third party advisory
https://support.apple.com/kb/HT214119 release notes vendor advisory
https://support.apple.com/kb/HT214118 release notes vendor advisory
https://support.apple.com/kb/HT214120 release notes vendor advisory
http://seclists.org/fulldisclosure/2024/Jul/20 third party advisory mailing list
http://seclists.org/fulldisclosure/2024/Jul/18 third party advisory mailing list
http://seclists.org/fulldisclosure/2024/Jul/19 third party advisory mailing list
https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468 exploit mitigation third party advisory

Frequently Asked Questions

What is the severity of CVE-2024-2466?
CVE-2024-2466 has been scored as a medium severity vulnerability.
How to fix CVE-2024-2466?
To fix CVE-2024-2466, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-2466 being actively exploited in the wild?
It is possible that CVE-2024-2466 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-2466?
CVE-2024-2466 affects curl curl.
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