Home CVE Database CVE-2021-23336

CVE-2021-23336

Description

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.

Priority: MEDIUM
CVSS v3: 7.1
Publish Date: Feb 15, 2021
Related ID: --
CVSS v2: HIGH
Modified Date: Feb 20, 2021

Find out more about CVE-2021-23336 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-8272
10.17.41.24 --
Wind River Linux 8 Legacy -- -- --
Wind River Linux 9 Legacy -- -- --
Wind River Linux 7 Legacy -- -- --
Wind River Linux LTS 21 Fixed -- 10.19.45.16 --
Wind River Linux LTS 18 Fixed LIN1018-7284
10.18.44.22 --
Wind River Linux LTS 19 Fixed LIN1019-6087
10.19.45.16 --
Wind River Linux CD release Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

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