CVE-2021-22969

MEDIUM

5.3

Descricao

Concrete CMS (formerly concrete5) versions below 8.5.7 has a SSRF mitigation bypass using DNS Rebind attack giving an attacker the ability to fetch cloud IAAS (ex AWS) IAM keys.To fix this Concrete CMS no longer allows downloads from the local network and specifies the validated IP when downloading rather than relying on DNS.Discoverer: Adrian Tiron from FORTBRIDGE ( https://www.fortbridge.co.uk/ )The Concrete CMS team gave this a CVSS 3.1 score of 3.5 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N . Please note that Cloud IAAS provider mis-configurations are not Concrete CMS vulnerabilities. A mitigation for this vulnerability is to make sure that the IMDS configurations are according to a cloud provider's best practices.This fix is also in Concrete version 9.0.0

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado11/19/2021

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

concretecms:concrete_cms

Fraquezas (CWE)

CWE-918CWE-918

Referencias

https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes(support@hackerone.com)

https://hackerone.com/reports/1369312(support@hackerone.com)

https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes(af854a3a-2127-422b-91ae-364da2661108)

https://hackerone.com/reports/1369312(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

Sem correlacoes registradas

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