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prionPRIOn knowledge basePRION:CVE-2021-33193
HistoryAug 16, 2021 - 8:15 a.m.

Input validation

2021-08-1608:15:00
PRIOn knowledge base
www.prio-n.com
5

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

7.5 High

AI Score

Confidence

High

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

39.9%

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

nessus 26
openvas 15
cbl_mariner 2
cve 1
redhatcve 1
veracode 1
suse 2
osv 8
hackerone 1
f5 1
photon 5
httpd 1
alpinelinux 1
ibm 5
oraclelinux 2
ubuntucve 1
debiancve 1
fedora 2
debian 1
rocky 1
redhat 4
rosalinux 2
almalinux 1
altlinux 2
kaspersky 1
ubuntu 3
slackware 1
cisco 1
freebsd 1
mageia 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
Oracle Linux 8 : httpd:2.4 (ELSA-2022-9276)
2022-04-14 00:00:00
openSUSE 15 Security Update : apache2 (openSUSE-SU-2021:1234-1)
2021-09-08 00:00:00
openvas
openvas
openSUSE: Security Advisory for apache2 (openSUSE-SU-2021:1234-1)
2021-09-08 00:00:00
openSUSE: Security Advisory for apache2 (openSUSE-SU-2021:2954-1)
2021-09-04 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:2954-1)
2021-09-05 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
cve
cve
CVE-2021-33193
2021-08-16 08:15:00
redhatcve
redhatcve
CVE-2021-33193
2021-08-12 02:03:43
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
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
httpd
httpd
Apache Httpd < 2.4.49 : Request splitting via HTTP/2 method injection and mod_proxy
2021-05-11 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
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CVE-2021-33193
2021-08-16 00:00:00
debiancve
debiancve
CVE-2021-33193
2021-08-16 08:15:00
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
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
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Advisory ROSA-SA-2023-2155
2023-04-18 12:09:43
Advisory ROSA-SA-2023-2159
2023-04-25 11:49:15
almalinux
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Moderate: httpd:2.4 security and bug fix update
2022-05-10 08:07:40
altlinux
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Security fix for the ALT Linux 9 package apache2 version 1:2.4.49-alt1
2021-09-23 00:00:00
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2021-10-04 00:00:00
kaspersky
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2021-09-16 00:00:00
ubuntu
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2021-09-27 00:00:00
Apache HTTP Server regression
2021-09-28 00:00:00
Apache HTTP Server regression
2021-09-28 00:00:00
slackware
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[slackware-security] httpd
2021-09-17 04:22:20
cisco
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Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021
2021-11-24 16:00:00
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
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

7.5 High

AI Score

Confidence

High

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

39.9%

JSON
Related for PRION:CVE-2021-33193
nessus26openvas15cbl_mariner2cve1redhatcve1veracode1suse2osv8hackerone1f51photon5httpd1alpinelinux1ibm5oraclelinux2ubuntucve1debiancve1fedora2debian1rocky1redhat4rosalinux2almalinux1altlinux2kaspersky1ubuntu3slackware1cisco1freebsd1mageia1amazon2gentoo1oracle2