CVSS: 7.2EPSS: 1%CPEs: 1EXPL: 1CVE-2021-22968
https://notcve.org/view.php?id=CVE-2021-22968
A bypass of adding remote files in Concrete CMS (previously concrete5) File Manager leads to remote code execution in Concrete CMS (concrete5) versions 8.5.6 and below.The external file upload feature stages files in the public directory even if they have disallowed file extensions. They are stored in a directory with a random name, but it's possible to stall the uploads and brute force the directory name. You have to be an admin with the ability to upload files, but this bug gives you the ability to upload restricted file types and execute them depending on server configuration.To fix this, a check for allowed file extensions was added before downloading files to a tmp directory.Concrete CMS Security Team gave this a CVSS v3.1 score of 5.4 AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:NThis fix is also in Concrete version 9.0.0 Un bypass en la adición de archivos remotos en el Administrador de Archivos de Concrete CMS (anteriormente concrete5) conlleva a una ejecución de código remota en Concrete CMS (concrete5) versiones 8.5.6 y anteriores. La funcionalidad external file upload escenifica archivos en el directorio público incluso si presentan extensiones de archivo no permitidas. Son almacenadas en un directorio con un nombre aleatorio, pero es posible detener las subidas y forzar el nombre del directorio. • https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes https://hackerone.com/reports/1350444 • CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') CWE-330: Use of Insufficiently Random Values CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-22967
https://notcve.org/view.php?id=CVE-2021-22967
In Concrete CMS (formerly concrete 5) below 8.5.7, IDOR Allows Unauthenticated User to Access Restricted Files If Allowed to Add Message to a Conversation.To remediate this, a check was added to verify a user has permissions to view files before attaching the files to a message in "add / edit message”.Concrete CMS security team gave this a CVSS v3.1 score of 4.3 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCredit for discovery Adrian H En Concrete CMS (anteriormente Concrete 5) versiones anteriores a 8.5.7, IDOR permite a un usuario no autentificado acceder a archivos restringidos si le es permitido añadir un mensaje a una conversación. Para remediar esto, ha sido añadida una comprobación para verificar que un usuario presenta permisos para visualizar los archivos antes de adjuntar los archivos a un mensaje en "add / edit message".El equipo de seguridad de Concrete CMS dio a esto una puntuación CVSS v3.1 de 4.3 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Créditos para la detección Adrian H • https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes https://hackerone.com/reports/869612 • CWE-639: Authorization Bypass Through User-Controlled Key •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-22951
https://notcve.org/view.php?id=CVE-2021-22951
Unauthorized individuals could view password protected files using view_inline in Concrete CMS (previously concrete 5) prior to version 8.5.7. Concrete CMS now checks to see if a file has a password in view_inline and, if it does, the file is not rendered.For version 8.5.6, the following mitigations were put in place a. restricting file types for view_inline to images only b. putting a warning in the file manager to advise users.Credit for discovery: "Solar Security Research Team"Concrete CMS security team CVSS scoring is 5.3: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NThis fix is also in Concrete version 9.0.0 Unas personas no autorizadas podían visualizar los archivos protegidos por contraseña usando la función view_inline en Concrete CMS (anteriormente concrete 5) versiones anteriores a 8.5.7. Para la versión 8.5.6, han sido implementadas las siguientes medidas de mitigación a. restringir los tipos de archivo para view_inline únicamente a las imágenes b. incluir una advertencia en el administrador de archivos para avisar a usuarios: "Solar Security Research Team "La puntuación CVSS del equipo de seguridad de CMS es de 5,3: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NTEsta corrección también está en Concrete versión 9.0.0 • https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes https://hackerone.com/reports/1102014 • CWE-639: Authorization Bypass Through User-Controlled Key •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-22966
https://notcve.org/view.php?id=CVE-2021-22966
Privilege escalation from Editor to Admin using Groups in Concrete CMS versions 8.5.6 and below. If a group is granted "view" permissions on the bulkupdate page, then users in that group can escalate to being an administrator with a specially crafted curl. Fixed by adding a check for group permissions before allowing a group to be moved. Concrete CMS Security team CVSS scoring: 7.1 AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HCredit for discovery: "Adrian Tiron from FORTBRIDGE ( https://www.fortbridge.co.uk/ )"This fix is also in Concrete version 9.0.0 Una escalada de privilegios de Editor a Administrador usando Grupos en Concrete CMS versiones 8.5.6 e inferiores. Si a un grupo le es concedido permisos "view" en la página de bulkupdate, entonces usuarios de ese grupo pueden escalar a ser un administrador con un curl especialmente diseñado. • https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes https://hackerone.com/reports/1362747 • CWE-863: Incorrect Authorization •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-22970
https://notcve.org/view.php?id=CVE-2021-22970
Concrete CMS (formerly concrete5) versions 8.5.6 and below and version 9.0.0 allow local IP importing causing the system to be vulnerable toa. SSRF attacks on the private LAN servers by reading files from the local LAN. An attacker can pivot in the private LAN and exploit local network appsandb. SSRF Mitigation Bypass through DNS RebindingConcrete CMS security team gave this a CVSS score of 3.5 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NConcrete CMS is maintaining Concrete version 8.5.x until 1 May 2022 for security fixes.This CVE is shared with HackerOne Reports https://hackerone.com/reports/1364797 and https://hackerone.com/reports/1360016Reporters: Adrian Tiron from FORTBRIDGE (https://www.fortbridge.co.uk/ ) and Bipul Jaiswal Concrete CMS (antes concrete5) versiones 8.5.6 y anteriores versión 9.0.0, permiten una importación de IP locales causando que el sistema sea vulnerable a unos ataques de tipo SSRF en los servidores de la LAN privada mediante una lectura de archivos de la LAN local. Un atacante puede pivotar en la LAN privada y explotar la red local appsandb. • https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes https://documentation.concretecms.org/developers/introduction/version-history/901-release-notes https://hackerone.com/reports/1364797 • CWE-918: Server-Side Request Forgery (SSRF) •