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httpdApache Team FoundationHTTPD:F6C47B71D440F1A5B8EC9883D1516A33
HistoryMay 11, 2021 - 12:00 a.m.

Apache Httpd < 2.4.49 : Request splitting via HTTP/2 method injection and mod_proxy

2021-05-1100:00:00
Apache Team Foundation
httpd.apache.org
28

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

44.8%

JSON

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.

Related

nessus 26
cbl_mariner 2
veracode 1
suse 2
osv 8
prion 1
cve 1
redhatcve 1
hackerone 1
f5 1
photon 5
alpinelinux 1
ibm 5
oraclelinux 2
ubuntucve 1
debiancve 1
fedora 2
rocky 1
debian 1
redhat 4
rosalinux 2
almalinux 1
altlinux 2
freebsd 1
mageia 1
ubuntu 3
cisco 1
slackware 1
kaspersky 1
amazon 2
gentoo 1
oracle 2
nessus
nessus
Photon OS 3.0: Httpd PHSA-2021-3.0-0305
2021-10-07 00:00:00
Apache >= 2.4.17 < 2.4.49 mod_http2
2021-09-23 00:00:00
SUSE SLED12 / SLES12 Security Update : apache2 (SUSE-SU-2021:2918-1)
2021-09-04 00:00:00
cbl_mariner
cbl_mariner
CVE-2021-33193 affecting package httpd 2.4.46-10
2022-04-09 06:51:57
CVE-2021-33193 affecting package httpd 2.4.46-6
2021-09-09 15:02:57
veracode
veracode
Privilege Escalation
2021-08-13 01:56:49
suse
suse
Security update for apache2 (important)
2021-09-07 00:00:00
Security update for apache2 (important)
2021-09-03 00:00:00
osv
osv
CVE-2021-33193
2021-08-16 08:15:11
BIT-apache-2021-33193
2024-03-06 10:55:40
Moderate: httpd:2.4 security and bug fix update
2022-05-10 08:07:40
prion
prion
Input validation
2021-08-16 08:15:00
cve
cve
CVE-2021-33193
2021-08-16 08:15:00
redhatcve
redhatcve
CVE-2021-33193
2021-08-12 02:03:43
hackerone
hackerone
Internet Bug Bounty: Request line injection via HTTP/2 in Apache mod_proxy
2021-11-04 13:39:46
f5
f5
K94828628 : Apache mod_proxy HTTP/2 vulnerability CVE-2021-33193
2021-09-13 00:00:00
photon
photon
Important Photon OS Security Update - PHSA-2021-0305
2021-09-24 00:00:00
Important Photon OS Security Update - PHSA-2021-3.0-0305
2021-09-24 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0435
2021-09-21 00:00:00
alpinelinux
alpinelinux
CVE-2021-33193
2021-08-16 08:15:00
ibm
ibm
Security Bulletin: IBM Rational Build Forge 8.0.x is affected by Apache HTTP Server version used in it. (CVE-2021-33193)
2022-01-17 18:26:42
Security Bulletin: IBM Aspera Orchestrator affected by HTTP request splitting attack due to Apache HTTP Server vulnerability (CVE-2021-33193)
2023-02-02 20:39:06
Security Bulletin: Vulnerabilities in Apache HTTP (CVE-2021-33193 and CVE-2021-44224) affects Power HMC
2022-12-04 00:13:21
oraclelinux
oraclelinux
httpd:2.4 security update
2022-04-13 00:00:00
httpd:2.4 security and bug fix update
2022-05-17 00:00:00
ubuntucve
ubuntucve
CVE-2021-33193
2021-08-16 00:00:00
debiancve
debiancve
CVE-2021-33193
2021-08-16 08:15:00
fedora
fedora
[SECURITY] Fedora 34 Update: httpd-2.4.50-1.fc34
2021-10-07 17:19:23
[SECURITY] Fedora 35 Update: httpd-2.4.50-1.fc35
2021-10-29 23:19:42
rocky
rocky
httpd:2.4 security and bug fix update
2022-05-10 08:07:40
debian
debian
[SECURITY] [DLA 3351-1] apache2 security update
2023-03-03 16:35:17
redhat
redhat
(RHSA-2022:1915) Moderate: httpd:2.4 security and bug fix update
2022-05-10 08:07:40
(RHSA-2022:7143) Moderate: Red Hat JBoss Core Services Apache HTTP Server 2.4.51 security update
2022-10-26 20:05:14
(RHSA-2022:6753) Moderate: httpd24-httpd security and bug fix update
2022-09-29 13:20:41
rosalinux
rosalinux
Advisory ROSA-SA-2023-2155
2023-04-18 12:09:43
Advisory ROSA-SA-2023-2159
2023-04-25 11:49:15
almalinux
almalinux
Moderate: httpd:2.4 security and bug fix update
2022-05-10 08:07:40
altlinux
altlinux
Security fix for the ALT Linux 9 package apache2 version 1:2.4.49-alt1
2021-09-23 00:00:00
Security fix for the ALT Linux 10 package apache2 version 1:2.4.49-alt1
2021-10-04 00:00:00
freebsd
freebsd
Apache httpd -- multiple vulnerabilities
2021-09-16 00:00:00
mageia
mageia
Updated apache packages fix security vulnerability
2021-09-23 07:49:29
ubuntu
ubuntu
Apache HTTP Server regression
2021-09-28 00:00:00
Apache HTTP Server regression
2021-09-28 00:00:00
Apache HTTP Server vulnerabilities
2021-09-27 00:00:00
cisco
cisco
Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021
2021-11-24 16:00:00
slackware
slackware
[slackware-security] httpd
2021-09-17 04:22:20
kaspersky
kaspersky
KLA12370 Multiple vulnerabilities in Apache HTTP Server
2021-09-16 00:00:00
amazon
amazon
Important: httpd24
2021-10-15 07:52:00
Important: httpd
2021-10-15 07:57:00
gentoo
gentoo
Apache HTTPD: Multiple Vulnerabilities
2022-08-14 00:00:00
oracle
oracle
Oracle Critical Patch Update Advisory - January 2022
2022-01-18 00:00:00
Oracle Critical Patch Update Advisory - April 2022
2022-04-19 00:00:00

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

44.8%

JSON
Related for HTTPD:F6C47B71D440F1A5B8EC9883D1516A33
nessus26cbl_mariner2veracode1suse2osv8prion1cve1redhatcve1hackerone1f51photon5alpinelinux1ibm5oraclelinux2ubuntucve1debiancve1fedora2rocky1debian1redhat4rosalinux2almalinux1altlinux2freebsd1mageia1ubuntu3cisco1slackware1kaspersky1amazon2gentoo1oracle2