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CVE-2021-33026 Detail

Disputed     

Current 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. 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


View Analysis Description

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/pallets-eco/flask-caching/pull/209#issuecomment-1136397937 Issue Tracking  Patch  Third Party Advisory 
https://github.com/sh4nks/flask-caching/pull/209 Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-502 Deserialization of Untrusted Data cwe source acceptance level NIST   CISA-ADP  

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-33026
NVD Published Date:
05/13/2021
NVD Last Modified:
08/03/2024
Source:
MITRE