In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.
Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Http_server | Apache | 2.4.35 (including) | 2.4.64 (excluding) |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-httpd-0:2.4.62-8.el8jbcs | * |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-mod_http2-0:2.0.29-5.el8jbcs | * |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-mod_jk-0:1.2.50-9.redhat_1.el8jbcs | * |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-mod_md-1:2.4.28-10.el8jbcs | * |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-mod_proxy_cluster-0:1.3.22-4.el8jbcs | * |
| JBoss Core Services for RHEL 8 | RedHat | jbcs-httpd24-mod_security-0:2.9.6-11.el8jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-httpd-0:2.4.62-8.el7jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-mod_http2-0:2.0.29-5.el7jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-mod_jk-0:1.2.50-9.redhat_1.el7jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-mod_md-1:2.4.28-10.el7jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-mod_proxy_cluster-0:1.3.22-4.el7jbcs | * |
| JBoss Core Services on RHEL 7 | RedHat | jbcs-httpd24-mod_security-0:2.9.6-11.el7jbcs | * |
| Red Hat Enterprise Linux 10 | RedHat | httpd-0:2.4.63-1.el10_0.2 | * |
| Red Hat Enterprise Linux 8 | RedHat | httpd:2.4-8100020250728150834.489197e6 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | httpd:2.4-8020020250827160659.4cda2c84 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | httpd:2.4-8040020250827161824.522a0ee4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | httpd:2.4-8040020250827161824.522a0ee4 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | httpd:2.4-8060020250827162806.ad008a3a | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | httpd:2.4-8060020250827162806.ad008a3a | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | httpd:2.4-8060020250827162806.ad008a3a | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | httpd:2.4-8080020250827163339.63b34585 | * |
| Red Hat Enterprise Linux 9 | RedHat | httpd-0:2.4.62-4.el9_6.4 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | httpd-0:2.4.51-7.el9_0.10 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | httpd-0:2.4.53-11.el9_2.13 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | httpd-0:2.4.57-11.el9_4.3 | * |
| Red Hat JBoss Core Services 2.4.62.SP1 | RedHat | httpd | * |
| Apache2 | Ubuntu | devel | * |
| Apache2 | Ubuntu | esm-infra/bionic | * |
| Apache2 | Ubuntu | esm-infra/focal | * |
| Apache2 | Ubuntu | esm-infra/xenial | * |
| Apache2 | Ubuntu | jammy | * |
| Apache2 | Ubuntu | noble | * |
| Apache2 | Ubuntu | plucky | * |
| Apache2 | Ubuntu | upstream | * |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: