CVE-2021-23336Medium· 5.9▾ SunlitThe 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 usi…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 8.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
41%
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.
python < 3.6.13python >= 3.7.0, < 3.7.10python >= 3.8.0, < 3.8.8python >= 3.9.0, < 3.9.2fedora = 32fedora = 33fedora = 34debian_linux = 9.0cloud_backupinventory_collect_toolontap_select_deploy_administration_utilitysnapcenterdjango >= 2.2, < 2.2.19django >= 3.0, < 3.0.13django >= 3.1, < 3.1.7communications_offline_mediation_controller = 12.0.0.3.0communications_pricing_design_center = 12.0.0.3.0enterprise_manager_ops_center = 12.4.0.0zfs_storage_appliance = 8.8Upgrade past the affected range:
python 3.9.2django 3.1.7Connected by shared product, vendor, weakness, or advisory.
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