CVE-2021-33026
En bref
- Source
- NVD
- EPSS
- EPSS 7.35 % · centile 94 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mitre
- Statut NVD
- Modified
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
Faiblesses (CWE)
- CWE-502 — Désérialisation de données non fiables
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
| CVSS 2.0 | HIGH 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-656c-6cxf-hvcv — Deserialization of Untrusted Data in Flask-Caching
Références européennes
- ENISA EUVD · EUVD-2021-0084
- GCVE · GCVE-0-2021-33026
Avis du CERT-FR
- CERTFR-2022-AVI-239 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:flask-caching_project:flask-caching:*:*:*:*:*:flask:*:*≤ 1.10.1
Produits affectés
| Produit | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |