Vulnerability in Apache Http_server
CVE-2018-11763
In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A poss…
EPSS: 0.510 (98.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apache Http_server
- Apache Software Foundation Http Server — versions 2.4.17 to 2.4.34
- Netapp Storage_automation_store
- Oracle Enterprise_manager_ops_center — versions 12.3.3
- Oracle Hospitality_guest_access — versions 4.2.0, 4.2.1
- Oracle Instantis_enterprisetrack — versions 17.1, 17.2, 17.3
- Oracle Retail_xstore_point_of_service — versions 7.0, 7.1
- Oracle Secure_global_desktop — versions 5.4
- Canonical Ubuntu_linux — versions 18.04
- Redhat Enterprise_linux — versions 6.0, 7.0, 7.4
Public proof-of-concept exploits
- NeoOniX/5ATTACK
- PawanKumarPandit/Shodan-nrich
- RoseSecurity-Research/Red-Teaming-TTPs
- RoseSecurity/Red-Teaming-TTPs
- Xorlent/Red-Teaming-TTPs
- austin-lai/External-Penetration-Testing-Holo-Corporate-Network-TryHackMe-Holo-Network
- bartholomex-x/nrich
- bioly230/THM_
- retr0-13/nrich
- vshaliii/Basic-Pentesting-2-Vulnhub-Walkthrough
References
- security@apache.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Vendor Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-11763?
- CVE-2018-11763 is a medium-severity vulnerability in Apache Http_server. CVSS score: 5.9/10. Published 2018-09-25.
- How severe is CVE-2018-11763?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2018-11763 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.