CVE-2024-8096: curl Cert Validation Flaw

Description

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-295 CWE-295

Affected Products

Vendor	Product	Versions
haxx	curl	7.41.0 — 8.10.0
debian	debian_linux	All
netapp	active_iq_unified_manager	All
netapp	ontap_select_deploy_administration_utility	All
netapp	ontap_tools	All
netapp	bootstrap_os	All
netapp	hci_compute_node	All
netapp	h300s_firmware	All
netapp	h300s	All
netapp	h410s_firmware	All
netapp	h410s	All
netapp	h500s_firmware	All
netapp	h500s	All
netapp	h700s_firmware	All
netapp	h700s	All

References

Advisories & Patches

https://curl.se/docs/CVE-2024-8096.html https://curl.se/docs/CVE-2024-8096.json

Exploits

https://hackerone.com/reports/2669852

Other References

http://www.openwall.com/lists/oss-security/2024/09/11/1 https://lists.debian.org/debian-lts-announce/2024/11/msg00008.html https://security.netapp.com/advisory/ntap-20241011-0005/

Frequently Asked Questions

What is CVE-2024-8096? +

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-8096? +

CVE-2024-8096 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-8096? +

CVE-2024-8096 affects products from debian, haxx, netapp, specifically: active_iq_unified_manager, bootstrap_os, curl, debian_linux, h300s, h300s_firmware, h410s, h410s_firmware, h500s, h500s_firmware, h700s, h700s_firmware, hci_compute_node, ontap_select_deploy_administration_utility, ontap_tools. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8096? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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