CVE-2011-4963
UnknownEPSS 5.96%
Last modified
CVE-2011-4963 is a vulnerability of currently unknown severity. nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain "$index_allocation" sequences in a request.. EPSS estimates a 5.96% chance of exploitation in the next 30 days.
Description
nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain "$index_allocation" sequences in a request.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Nginx | >= 0.7.52, < 1.2.1 |
| F5 | Nginx | 1.3.0 |
References
- http://english.securitylab.ru/lab/PT-2012-06Mitigation, Third Party Advisory
- http://mailman.nginx.org/pipermail/nginx-announce/2012/000086.htmlMitigation, Vendor Advisory
- http://nginx.org/en/security_advisories.htmlVendor Advisory
- http://english.securitylab.ru/lab/PT-2012-06Mitigation, Third Party Advisory
- http://mailman.nginx.org/pipermail/nginx-announce/2012/000086.htmlMitigation, Vendor Advisory
- http://nginx.org/en/security_advisories.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2011-4963?
nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain "$index_allocation" sequences in a request.
How severe is CVE-2011-4963?
Severity scoring for CVE-2011-4963 is pending analysis. The EPSS model estimates a 5.96% probability of exploitation in the next 30 days.
How do I fix CVE-2011-4963?
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-2011-4963?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST