CVE-2021-33193

HIGH7.5EPSS 0.61%

Request splitting via HTTP/2 method injection and mod_proxy

發布日:2021/8/16修改日:2025/5/20

也稱為:ALPINE-CVE-2021-33193BIT-apache-2021-33193DEBIAN-CVE-2021-33193

描述

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.

受影響套件(3)

Alpine/apache2from 0, < 2.4.49-r0
Bitnami/apache>= 2.4.17, < 2.4.49
Debian/apache2from 0, < 2.4.48-3.1+deb11u1

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	HIGH7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

參考連結(16)

ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2021-33193
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-33193
WEBhttps://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patch
WEBhttps://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d%40%3Ccvs.httpd.apache.org%3E
WEBhttps://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70%40%3Ccvs.httpd.apache.org%3E
WEBhttps://lists.debian.org/debian-lts-announce/2023/03/msg00002.html
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/
WEBhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/
WEBhttps://nvd.nist.gov/vuln/detail/CVE-2021-33193
WEBhttps://portswigger.net/research/http2
WEBhttps://security.gentoo.org/glsa/202208-20
WEBhttps://security.netapp.com/advisory/ntap-20210917-0004/
WEBhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
WEBhttps://www.oracle.com/security-alerts/cpuapr2022.html
WEBhttps://www.oracle.com/security-alerts/cpujan2022.html
WEBhttps://www.tenable.com/security/tns-2021-17