CVE-2024-8096: OCSP stapling bypass with GnuTLS
First published: Wed Sep 11 2024(Updated: )
cURL libcurl could allow a remote attacker to bypass security restrictions, caused by a flaw when using OCSP stapling to validate server cerficate. By sending a specially crafted request, an attacker could exploit this vulnerability to establish the connection even if the certificate is revoked.
Credit: 2499f714-1537-4658-8207-48ae4bb9eae9 2499f714-1537-4658-8207-48ae4bb9eae9
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/curl | <=7.74.0-1.3+deb11u13<=7.74.0-1.3+deb11u11<=7.88.1-10+deb12u7<=7.88.1-10+deb12u5<=8.9.1-2 | 8.10.0-2 |
| IBM QRadar WinCollect Agent | <=10.0-10.1.12 |
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Reference Links
- https://curl.se/docs/CVE-2024-8096.html
- https://curl.se/docs/CVE-2024-8096.json
- https://hackerone.com/reports/2669852
- https://github.com/curl/curl/commit/f13669a375f5bfd14797bda91642cabe076974fa
- https://github.com/curl/curl/commit/aeb1a281cab13c7ba791cb104e556b20e713941f
- https://security-tracker.debian.org/tracker/CVE-2024-8096
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-8096
- https://nvd.nist.gov/vuln/detail/CVE-2024-8096
- https://launchpad.net/bugs/cve/CVE-2024-8096
- https://ubuntu.com/security/CVE-2024-8096
- https://www.ibm.com/support/pages/node/7176043 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-8096?
CVE-2024-8096 has been assigned a critical severity rating due to its potential to allow remote attackers to bypass security restrictions.
How do I fix CVE-2024-8096?
To fix CVE-2024-8096, upgrade to the recommended version of cURL, which is 8.10.0-2 or higher.
What products are affected by CVE-2024-8096?
CVE-2024-8096 affects the cURL package on Debian and the IBM QRadar WinCollect Agent up to version 10.1.12.
Can CVE-2024-8096 be exploited remotely?
Yes, CVE-2024-8096 can be exploited by a remote attacker through specially crafted requests that manipulate OCSP stapling.
What happens if I don't address CVE-2024-8096?
If CVE-2024-8096 is not addressed, the system may be vulnerable to establishing insecure connections despite invalid server certificates.
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