Unknown
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.
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CVSS V3 Severity and Metrics
General Information
Vendors
- debian,
- djangoproject,
- fedoraproject,
- netapp,
- oracle,
- python
Products
- cloud backup -,
- communications offline mediation controller 12.0.0.3.0,
- communications pricing design center 12.0.0.3.0,
- debian linux 9.0,
- django,
- enterprise manager ops center 12.4.0.0,
- fedora 32,
- fedora 33,
- fedora 34,
- inventory collect tool -,
- ontap select deploy administration utility -,
- python,
- snapcenter -,
- zfs storage appliance 8.8
References
Advisory
