SB2020091027 - Multiple vulnerabilities in Django

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Incorrect default permissions (CVE-ID: CVE-2020-24583)

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application when "FILE_UPLOAD_DIRECTORY_PERMISSIONS" mode was not applied to intermediate-level directories created in the process of uploading files. A remote attacker can view contents of files and directories.

2) Incorrect default permissions (CVE-ID: CVE-2020-24584)

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the intermediate-level directories of the filesystem cache have the system's standard umask rather than 0o077. A remote attacker can view contents of files and directories.

Remediation

Install update from vendor's website.

References

• https://docs.djangoproject.com/en/dev/releases/security/
• https://groups.google.com/forum/#!topic/django-announce/Gdqn58RqIDM
• https://groups.google.com/forum/#!topic/django-announce/zFCMdgUnutU
• https://usn.ubuntu.com/4479-1/
• https://www.djangoproject.com/weblog/2020/sep/01/security-releases/
• https://www.openwall.com/lists/oss-security/2020/09/01/2