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osvGoogleOSV:BIT-APACHE-2021-33193
HistoryMar 06, 2024 - 10:55 a.m.

BIT-apache-2021-33193

2024-03-0610:55:40
Google
osv.dev
46
crafted method
http/2
request splitting
cache poisoning
mod_proxy
validation bypass
apache http server
software vulnerability

CVSS2

5

Attack Vector

NETWORK

Attack 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

CVSS3

7.5

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

AI Score

6.6

Confidence

Low

EPSS

0.001

Percentile

47.3%

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.

References

Related

cbl_mariner 2
openvas 15
nessus 31
suse 2
osv 7
veracode 1
cvelist 1
redhatcve 1
prion 1
cve 1
photon 5
hackerone 1
alpinelinux 1
f5 1
nvd 1
httpd 1
debiancve 1
ibm 5
oraclelinux 2
ubuntucve 1
fedora 2
debian 1
rocky 1
rosalinux 2
redhat 4
almalinux 1
altlinux 2
slackware 1
ubuntu 3
freebsd 1
cisco 1
mageia 1
kaspersky 1
amazon 2
gentoo 1
oracle 2
cbl_mariner
cbl_mariner
CVE-2021-33193 affecting package httpd for versions less than 2.4.52-1
2022-04-09 06:51:57
CVE-2021-33193 affecting package httpd 2.4.46-6
2021-09-09 15:02:57
openvas
openvas
openSUSE: Security Advisory for apache2 (openSUSE-SU-2021:1234-1)
2021-09-08 00:00:00
Apache HTTP Server 2.4.17 < 2.4.49 'mod_proxy' HTTP/2 Request Smuggling Vulnerability - Linux
2021-08-09 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:2954-1)
2021-09-05 00:00:00
nessus
nessus
Photon OS 3.0: Httpd PHSA-2021-3.0-0305
2021-10-07 00:00:00
SUSE SLED12 / SLES12 Security Update : apache2 (SUSE-SU-2021:2918-1)
2021-09-04 00:00:00
Apache >= 2.4.17 < 2.4.49 mod_http2
2021-09-23 00:00:00
suse
suse
Security update for apache2 (important)
2021-09-03 00:00:00
Security update for apache2 (important)
2021-09-07 00:00:00
osv
osv
CVE-2021-33193
2021-08-16 08:15:11
Moderate: httpd:2.4 security and bug fix update
2022-05-10 08:07:40
Moderate: httpd:2.4 security and bug fix update
2022-05-10 08:07:40
veracode
veracode
Privilege Escalation
2021-08-13 01:56:49
cvelist
cvelist
CVE-2021-33193 Request splitting via HTTP/2 method injection and mod_proxy
2021-08-16 00:00:00
redhatcve
redhatcve
CVE-2021-33193
2021-08-12 02:03:43
prion
prion
Input validation
2021-08-16 08:15:00
cve
cve
CVE-2021-33193
2021-08-16 08:15:11
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
hackerone
hackerone
Internet Bug Bounty: Request line injection via HTTP/2 in Apache mod_proxy
2021-11-04 13:39:46
alpinelinux
alpinelinux
CVE-2021-33193
2021-08-16 08:15:11
f5
f5
K94828628 : Apache mod_proxy HTTP/2 vulnerability CVE-2021-33193
2021-09-13 00:00:00
nvd
nvd
CVE-2021-33193
2021-08-16 08:15:11
httpd
httpd
Apache Httpd < 2.4.49 : Request splitting via HTTP/2 method injection and mod_proxy
2021-05-11 00:00:00
debiancve
debiancve
CVE-2021-33193
2021-08-16 08:15:11
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
fedora
fedora
[SECURITY] Fedora 35 Update: httpd-2.4.50-1.fc35
2021-10-29 23:19:42
[SECURITY] Fedora 34 Update: httpd-2.4.50-1.fc34
2021-10-07 17:19:23
debian
debian
[SECURITY] [DLA 3351-1] apache2 security update
2023-03-03 16:35:17
rocky
rocky
httpd:2.4 security and bug fix update
2022-05-10 08:07:40
rosalinux
rosalinux
Advisory ROSA-SA-2023-2155
2023-04-18 12:09:43
Advisory ROSA-SA-2023-2159
2023-04-25 11:49:15
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
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
slackware
slackware
[slackware-security] httpd
2021-09-17 04:22:20
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
freebsd
freebsd
Apache httpd -- multiple vulnerabilities
2021-09-16 00:00:00
cisco
cisco
Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021
2021-11-24 16:00:00
mageia
mageia
Updated apache packages fix security vulnerability
2021-09-23 07:49:29
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

CVSS2

5

Attack Vector

NETWORK

Attack 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

CVSS3

7.5

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

AI Score

6.6

Confidence

Low

EPSS

0.001

Percentile

47.3%

JSON
Related for OSV:BIT-APACHE-2021-33193
cbl_mariner2openvas15nessus31suse2osv7veracode1cvelist1redhatcve1prion1cve1photon5hackerone1alpinelinux1f51nvd1httpd1debiancve1ibm5oraclelinux2ubuntucve1fedora2debian1rocky1rosalinux2redhat4almalinux1altlinux2slackware1ubuntu3freebsd1cisco1mageia1kaspersky1amazon2gentoo1oracle2