Vulnerability · Published Jun 8, 2022 · Assigned by apache
CVE-2022-26377mod_proxy_ajp: Possible request smuggling
High 7.5
In plain English
A high-severity security flaw in Apache HTTP Server from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 21.1% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)21.1%top 2.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | httpd | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | httpd | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:9 | httpd-core | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | httpd-devel | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | httpd-devel | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | httpd-filesystem | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | httpd-filesystem | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | httpd-manual | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | httpd-manual | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | httpd-tools | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | httpd-tools | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | mod_http2 | 1.15.7-5.module_el8.6.0+2872+fe0ff7aa | ALSA-2022:7647 |
| AlmaLinux:8 | mod_http2 | 1.15.7-5.module_el8.6.0+3031+fb177b09 | ALSA-2022:7647 |
| AlmaLinux:8 | mod_ldap | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | mod_ldap | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:9 | mod_lua | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | mod_md | 1:2.0.8-8.module_el8.6.0+3031+fb177b09 | ALSA-2022:7647 |
| AlmaLinux:8 | mod_md | 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa | ALSA-2022:7647 |
| AlmaLinux:8 | mod_proxy_html | 1:2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | mod_proxy_html | 1:2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | mod_session | 2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | mod_session | 2.4.53-7.el9 | ALSA-2022:8067 |
| AlmaLinux:8 | mod_ssl | 1:2.4.37-51.module_el8.7.0+3281+01e58653 | ALSA-2022:7647 |
| AlmaLinux:9 | mod_ssl | 1:2.4.53-7.el9 | ALSA-2022:8067 |
| Alpine:v3.20 | apache2 | 2.4.54-r0 | ALPINE-CVE-2022-26377 |
| Alpine:v3.21 | apache2 | 2.4.54-r0 | ALPINE-CVE-2022-26377 |
| Alpine:v3.22 | apache2 | 2.4.54-r0 | ALPINE-CVE-2022-26377 |
| Alpine:v3.23 | apache2 | 2.4.54-r0 | ALPINE-CVE-2022-26377 |
| Alpine:v3.24 | apache2 | 2.4.54-r0 | ALPINE-CVE-2022-26377 |
| Debian:12 | apache2 | 2.4.54-1 | DEBIAN-CVE-2022-26377 |
| Debian:13 | apache2 | 2.4.54-1 | DEBIAN-CVE-2022-26377 |
| Debian:14 | apache2 | 2.4.54-1 | DEBIAN-CVE-2022-26377 |
| Rocky Linux:8 | httpd | 0:2.4.37-51.module+el8.7.0+1059+126e9251 | RLSA-2022:7647 |
| Rocky Linux:9 | httpd | 0:2.4.53-7.el9 | RLSA-2022:8067 |
| Rocky Linux:8 | mod_http2 | 0:1.15.7-5.module+el8.6.0+823+f143cee1 | RLSA-2022:7647 |
| Rocky Linux:8 | mod_md | 1:2.0.8-8.module+el8.4.0+553+7a69454b | RLSA-2022:7647 |
| Rocky Linux:8 | mod_md | 1:2.0.8-8.module+el8.5.0+695+1fa8055e | RLSA-2022:7647 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.1 | USN-5487-1 |
| Ubuntu:22.04:LTS | apache2 | 2.4.52-1ubuntu4.1 | UBUNTU-CVE-2022-26377 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache HTTP Server | Apache HTTP Server 2.4 – through 2.4.53 |
Weakness: CWE-444
References
- https://httpd.apache.org/security/vulnerabilities_24.html x_refsource_MISC
- [oss-security] 20220608 CVE-2022-26377: Apache HTTP Server: mod_proxy_ajp: Possible request smuggling mailing-list, x_refsource_MLIST
- https://security.netapp.com/advisory/ntap-20220624-0005/ x_refsource_CONFIRM
- FEDORA-2022-e620fb15d5 vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-b54a8dee29 vendor-advisory, x_refsource_FEDORA
- GLSA-202208-20 vendor-advisory, x_refsource_GENTOO