[SECURITY-L] [Security-news] Examples for Developers - Critical - Remote Code Execution - SA-CONTRIB-2020-035

[CSIRT Unicamp]

View online: https://www.drupal.org/sa-contrib-2020-035

Project: Examples for Developers [1]
Date: 2020-November-18
Security risk: *Critical* 17∕25
AC:Basic/A:User/CI:All/II:All/E:Theoretical/TD:Default [2]
Vulnerability: Remote Code Execution

Description:
The File Example submodule within the Examples project does not properly
sanitize certain filenames as described in SA-CORE-2020-012 [3], along with
other related vulnerabilities.

Therefore, File Example so is being removed from Examples until a version
demonstrating file security best practices can added back in the future.

Solution:
Any sites that have File Example submodule installed should uninstall it
immediately

Then, install the latest version of Examples:

   * If you use Examples 3 (Drupal 9-compatible), upgrade to Examples 3.0.2
[4]
   * If you use the Examples module's 8.x-1.x branch, upgrade to Examples
     8.x-1.1 [5]

Reported By:
   * Alex Pott [6] of the Drupal Security Team

Fixed By:
   * Valery Lourie [7]
   * Samuel Mortenson [8] of the Drupal Security Team
   * Jess (xjm) [9] of the Drupal Security Team
   * Alex Pott [10] of the Drupal Security Team

Coordinated By:
   * Michael Hess [11] of the Drupal Security Team
   * Jess (xjm) [12] of the Drupal Security Team
   * Drew Webber [13] of the Drupal Security Team
   * Alex Pott [14] of the Drupal Security Team


[1] https://www.drupal.org/project/examples
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/sa-core-2020-012
[4] https://www.drupal.org/project/examples/releases/3.0.2
[5] https://www.drupal.org/project/examples/releases/8.x-1.1
[6] https://www.drupal.org/user/157725
[7] https://www.drupal.org/user/239562
[8] https://www.drupal.org/user/2582268
[9] https://www.drupal.org/user/65776
[10] https://www.drupal.org/user/157725
[11] https://www.drupal.org/user/102818
[12] https://www.drupal.org/user/xjm
[13] https://www.drupal.org/user/255969
[14] https://www.drupal.org/user/157725

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===
Computer Security Incident Response Team - CSIRT
Universidade Estadual de Campinas - Unicamp
Centro de Computacao - CCUEC
GnuPG Public Key: http://www.security.unicamp.br/security.asc [^]
Contato: +55 19 3521-2289 ou INOC-DBA: 1251*830
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