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Vulnerability Change Records for CVE-2021-33026

Change History

CVE Modified by MITRE 9/16/2022 7:15:10 PM

Action Type Old Value New Value
Changed Description
The Flask-Caching extension through 1.10.1 for Flask relies on Pickle for serialization, which may lead to remote code execution or local privilege escalation. If an attacker gains access to cache storage (e.g., filesystem, Memcached, Redis, etc.), they can construct a crafted payload, poison the cache, and execute Python code.
** DISPUTED ** The Flask-Caching extension through 1.10.1 for Flask relies on Pickle for serialization, which may lead to remote code execution or local privilege escalation. If an attacker gains access to cache storage (e.g., filesystem, Memcached, Redis, etc.), they can construct a crafted payload, poison the cache, and execute Python code. NOTE: a third party indicates that exploitation is extremely unlikely unless the machine is already compromised; in other cases, the attacker would be unable to write their payload to the cache and generate the required collision.
Added Reference

								
							
							
						
https://github.com/pallets-eco/flask-caching/pull/209#issuecomment-1136397937 [No Types Assigned]