CVE-2024-0853: curl Cert Validation Flaw

Description

curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-295 CWE-295

Affected Products

Vendor	Product	Versions
haxx	curl	All

References

Advisories & Patches

https://curl.se/docs/CVE-2024-0853.html https://curl.se/docs/CVE-2024-0853.json https://curl.se/docs/CVE-2024-0853.html https://curl.se/docs/CVE-2024-0853.json

Exploits

https://hackerone.com/reports/2298922 https://hackerone.com/reports/2298922

Other References

https://security.netapp.com/advisory/ntap-20240307-0004/ https://security.netapp.com/advisory/ntap-20240426-0009/ https://security.netapp.com/advisory/ntap-20240503-0012/ https://security.netapp.com/advisory/ntap-20240307-0004/ https://security.netapp.com/advisory/ntap-20240426-0009/ https://security.netapp.com/advisory/ntap-20240503-0012/

Frequently Asked Questions

What is CVE-2024-0853? +

curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-0853? +

CVE-2024-0853 has a CVSS v3.1 score of 5.3 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-2024-0853? +

CVE-2024-0853 affects products from haxx, specifically: curl. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-0853? +

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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