CVE-2021-33193
Request splitting via HTTP/2 method injection and mod_proxy
- State
- Published
- Severity
- Not scored
- Published
- Aug 16, 2021
- Updated
- Aug 3, 2024
- Reserved
- May 19, 2021
Description
A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
Apache HTTP ServerApache Software Foundation |
|
References
- https://portswigger.net/research/http2
- https://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patch
- [httpd-cvs] 20210916 [httpd-site] branch main updated: Revert "Add descriptions for CVE-2021-33193 CVE-2021-36160"mailing-list
- [httpd-cvs] 20210916 [httpd-site] branch main updated: Add descriptions for CVE-2021-33193 CVE-2021-36160mailing-list
- FEDORA-2021-5d2d4b6ac5vendor-advisory
- FEDORA-2021-f94985afcavendor-advisory
- 20211124 Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021vendor-advisory
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://security.netapp.com/advisory/ntap-20210917-0004/
- https://www.tenable.com/security/tns-2021-17
- https://www.oracle.com/security-alerts/cpuapr2022.html
- GLSA-202208-20vendor-advisory
- [debian-lts-announce] 20230303 [SECURITY] [DLA 3351-1] apache2 security updatemailing-list
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