CVE-2018-8034
HIGHCVSS 7.5/10EPSS 21.30%
Last modified
CVE-2018-8034 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. EPSS estimates a 21.30% chance of exploitation in the next 30 days.
Description
The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.9, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, and 7.0.35 to 7.0.88.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Apache | Tomcat | >= 7.0.35, <= 7.0.88 | — |
| Apache | Tomcat | >= 8.0.0, <= 8.0.52 | — |
| Apache | Tomcat | >= 8.5.0, <= 8.5.31 | — |
| Apache | Tomcat | >= 9.0.1, <= 9.0.9 | — |
| Apache | Tomcat | 8.0.0 | Rc1 |
| Apache | Tomcat | 9.0.0 | Milestone1 |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Debian | Debian Linux | 8.0 | — |
| Debian | Debian Linux | 9.0 | — |
| Oracle | Retail Order Broker | 5.1 | — |
| Oracle | Retail Order Broker | 5.2 | — |
| Oracle | Retail Order Broker | 15.0 | — |
References
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/104895Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041374Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0130Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0131Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0450Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0451Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00047.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00001.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180817-0001/Third Party Advisory
- https://usn.ubuntu.com/3723-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4281Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/104895Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041374Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:0130Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0131Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0450Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0451Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/07/msg00047.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00001.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180817-0001/Third Party Advisory
- https://usn.ubuntu.com/3723-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4281Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-8034?
The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.9, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, and 7.0.35 to 7.0.88.
How severe is CVE-2018-8034?
CVE-2018-8034 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 21.30% probability of exploitation in the next 30 days.
How do I fix CVE-2018-8034?
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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