Executive Summary

Informations
Name CVE-2021-23336 First vendor Publication 2021-02-15
Vendor Cve Last vendor Modification 2021-07-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
Overall CVSS Score 5.9
Base Score 5.9 Environmental Score 5.9
impact SubScore 4.2 Temporal Score 5.9
Exploitabality Sub Score 1.6
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact None
Integrity Impact Low Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:N/C:N/I:P/A:P)
Cvss Base Score 4 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity High
Cvss Expoit Score 4.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23336

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 177
Application 1
Application 1
Application 1
Application 308
Os 1
Os 3
Os 1

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210326-0004/
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202104-04
MISC https://github.com/python/cpython/pull/24297
https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/
https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933
https://www.oracle.com/security-alerts/cpuApr2021.html
MLIST http://www.openwall.com/lists/oss-security/2021/02/19/4
http://www.openwall.com/lists/oss-security/2021/05/01/2
https://lists.apache.org/thread.html/ra8ce70088ba291f358e077cafdb14d174b7a1ce...
https://lists.apache.org/thread.html/rc005f4de9d9b0ba943ceb8ff5a21a5c6ff8a9df...
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0...
https://lists.debian.org/debian-lts-announce/2021/02/msg00030.html
https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html
https://lists.debian.org/debian-lts-announce/2021/04/msg00015.html

Alert History

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Date Informations
2021-07-21 05:23:01
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2021-06-17 21:23:32
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2021-06-15 00:23:04
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2021-05-29 09:22:57
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2021-05-04 14:09:18
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2021-05-04 13:27:23
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2021-05-04 09:22:49
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2021-05-02 09:22:51
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2021-05-02 05:22:50
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2021-05-01 09:22:54
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2021-04-29 21:23:12
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2021-04-23 21:23:07
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2021-04-22 00:23:35
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2021-04-18 05:22:53
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2021-04-06 00:22:57
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2021-03-30 17:23:02
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2021-03-26 17:22:54
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2021-03-26 12:38:10
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2021-02-20 09:22:58
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2021-02-20 00:23:01
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2021-02-19 17:22:57
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2021-02-16 17:22:56
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2021-02-15 17:22:56
  • First insertion