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Vulnerability Details : CVE-2021-23336

The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
Publish Date : 2021-02-15 Last Update Date : 2022-03-04
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 444

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:1633: python3 security update (Moderate) oval:com.redhat.rhsa:def:20211633 unix
RHSA-2021:4151: python27:2.7 security update (Moderate) oval:com.redhat.rhsa:def:20214151 unix
RHSA-2021:4162: python38:3.8 and python38-devel:3.8 security update (Moderate) oval:com.redhat.rhsa:def:20214162 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-23336

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 Application Djangoproject Django * * * * Version Details Vulnerabilities
3 OS Fedoraproject Fedora 32 * * * Version Details Vulnerabilities
4 OS Fedoraproject Fedora 33 * * * Version Details Vulnerabilities
5 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
6 Application Netapp Cloud Backup - * * * Version Details Vulnerabilities
7 Application Netapp Inventory Collect Tool - * * * Version Details Vulnerabilities
8 Application Netapp Ontap Select Deploy Administration Utility - * * * Version Details Vulnerabilities
9 Application Netapp Snapcenter - * * * Version Details Vulnerabilities
10 Application Oracle Communications Offline Mediation Controller * * * Version Details Vulnerabilities
11 Application Oracle Communications Pricing Design Center * * * Version Details Vulnerabilities
12 Application Oracle Enterprise Manager Ops Center * * * Version Details Vulnerabilities
13 OS Oracle Zfs Storage Appliance 8.8 * * * Version Details Vulnerabilities
14 Application Python Python * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Djangoproject Django 1
Fedoraproject Fedora 3
Netapp Cloud Backup 1
Netapp Inventory Collect Tool 1
Netapp Ontap Select Deploy Administration Utility 1
Netapp Snapcenter 1
Oracle Communications Offline Mediation Controller 1
Oracle Communications Pricing Design Center 1
Oracle Enterprise Manager Ops Center 1
Oracle Zfs Storage Appliance 1
Python Python 1

- References For CVE-2021-23336[email protected]/message/NJSCSN722JO2E2AGPWD4NTGVELVRPB4R/
FEDORA FEDORA-2021-1bb399a5af[email protected]/message/MNUN5SOMFL2BBKP6ZAICIIUPQKZDMGYO/
FEDORA FEDORA-2021-7d3a9004e2[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/
FEDORA FEDORA-2021-3352c1c802[email protected]
MLIST [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar
MLIST [debian-lts-announce] 20210405 [SECURITY] [DLA 2619-1] python3.5 security update
MLIST [debian-lts-announce] 20210417 [SECURITY] [DLA 2628-1] python2.7 security update[email protected]
FEDORA FEDORA-2021-b6b6093b3a
GENTOO GLSA-202104-04[email protected]
MLIST [airflow-users] 20210501 CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL
MLIST [oss-security] 20210501 CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL[email protected]
MLIST [announce] 20210501 Apache Airflow CVE: CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL[email protected]/message/SGIY6I4YS3WOXAK4SXKIEOC2G4VZKIR7/
FEDORA FEDORA-2021-98720f3785[email protected]/message/RSLQD5CCM75IZGAMBDGUZEATYU5YSGJ7/
FEDORA FEDORA-2021-12df7f7382
N/A N/A CONFIRM[email protected]/message/W2LSKBEFI5SYEY5FM6ICZVZM5WRQUCS4/
FEDORA FEDORA-2021-5a09621ebb[email protected]/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/
FEDORA FEDORA-2021-e22bb0e548[email protected]/message/LVNH6Z24IG3E67ZCQGGJ46FZB4XFLQNZ/
FEDORA FEDORA-2021-e525e48886[email protected]/message/IHQDU7NXA7EWAE4W7VO6MURVJIULEPPR/
FEDORA FEDORA-2021-309bc2e727[email protected]/message/HZTM7KLHFCE3LWSEVO2NAFLUHMGYMCRY/
FEDORA FEDORA-2021-ef83e8525a[email protected]/message/TFTELUMWZE3KV3JB2H5EE6VFRZFRD5MV/
FEDORA FEDORA-2021-2897f5366c[email protected]/message/OAGSWNGZJ6HQ5ISA67SNMK3CJRKICET7/
FEDORA FEDORA-2021-b326fcb83f[email protected]/message/3YKKDLXL3UEZ3J426C2XTBS63AHE46SM/
FEDORA FEDORA-2021-b1843407ca
MLIST [debian-lts-announce] 20210219 [SECURITY] [DLA 2569-1] python-django security update[email protected]/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/
FEDORA FEDORA-2021-907f3bacae[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/
FEDORA FEDORA-2021-7547ad987f[email protected]/message/3EPYWWFDV22CJ5AOH5VCE72DOASZZ255/
FEDORA FEDORA-2021-b76ede8f4d[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/
FEDORA FEDORA-2021-f4fd9372c7
MLIST [oss-security] 20210219 Django security releases: CVE-2021-23336: Web cache poisoning via ``django.utils.http.limited_parse_qsl()``[email protected]/message/KJXCMHLY7H3FIYLE4OKDYUILU2CCRUCZ/
FEDORA FEDORA-2021-7c1bb32d13

- Metasploit Modules Related To CVE-2021-23336

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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