CVE-2015-2091
UnknownEPSS 3.25%
Last modified
CVE-2015-2091 is a vulnerability of currently unknown severity. The authentication hook (mgs_hook_authz) in mod-gnutls 0.5.10 and earlier does not validate client certificates when "GnuTLSClientVerify require" is set, which allows remote attackers to spoof clients via a crafted certificate.. EPSS estimates a 3.25% chance of exploitation in the next 30 days.
Description
The authentication hook (mgs_hook_authz) in mod-gnutls 0.5.10 and earlier does not validate client certificates when "GnuTLSClientVerify require" is set, which allows remote attackers to spoof clients via a crafted certificate.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Mod-Gnutls | <= 0.5.1 |
References
- http://issues.outoforder.cc/view.php?id=93Vendor Advisory
- http://issues.outoforder.cc/view.php?id=93Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-2091?
The authentication hook (mgs_hook_authz) in mod-gnutls 0.5.10 and earlier does not validate client certificates when "GnuTLSClientVerify require" is set, which allows remote attackers to spoof clients via a crafted certificate.
How severe is CVE-2015-2091?
Severity scoring for CVE-2015-2091 is pending analysis. The EPSS model estimates a 3.25% probability of exploitation in the next 30 days.
How do I fix CVE-2015-2091?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2015-2091?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST