CVE-2024-0853: OCSP verification bypass with TLS session reuse
First published: Wed Jan 31 2024(Updated: )
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.
Credit: 2499f714-1537-4658-8207-48ae4bb9eae9
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Curl | =8.5.0 |
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Reference Links
- https://exchange.xforce.ibmcloud.com/vulnerabilities/281082
- https://exchange.xforce.ibmcloud.com/vulnerabilities/255804
- https://exchange.xforce.ibmcloud.com/vulnerabilities/217968
- https://www.ibm.com/support/pages/node/7144861 (Advisory)
- https://curl.se/docs/CVE-2024-0853.json
- https://curl.se/docs/CVE-2024-0853.html
- https://hackerone.com/reports/2298922
- 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 the severity of CVE-2024-0853?
CVE-2024-0853 has been classified with moderate severity due to potential risks in SSL session ID caching.
How do I fix CVE-2024-0853?
To fix CVE-2024-0853, update your curl to version 8.5.1 or later where the caching issue has been resolved.
What systems are affected by CVE-2024-0853?
CVE-2024-0853 affects curl version 8.5.0 that can lead to bypassing SSL verification.
Is CVE-2024-0853 a remote code execution vulnerability?
No, CVE-2024-0853 does not present a remote code execution vulnerability but poses a risk of SSL verification bypass.
What can happen if CVE-2024-0853 is exploited?
If exploited, CVE-2024-0853 may allow a successful connection to a potentially compromised server without proper SSL verification.
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