CVE-2019-19118

Summary

Django 2.1 before 2.1.15 and 2.2 before 2.2.8 allows unintended model editing. A Django model admin displaying inline related models, where the user has view-only permissions to a parent model but edit permissions to the inline model, would be presented with an editing UI, allowing POST requests, for updating the inline model. Directly editing the view-only parent model was not possible, but the parent model's save() method was called, triggering potential side effects, and causing pre and post-save signal handlers to be invoked. (To resolve this, the Django admin is adjusted to require edit permissions on the parent model in order for inline models to be editable.)

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: http://www.openwall.com/lists/oss-security/2019/12/02/1 ↗

Additional information

• NVD record
• http://www.openwall.com/lists/oss-security/2019/12/02/1Patch
• https://docs.djangoproject.com/en/dev/releases/security/Patch
• https://www.djangoproject.com/weblog/2019/dec/02/security-releases/Patch
• https://groups.google.com/forum/#%21topic/django-announce/GjGqDvtNmWQ
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6R4HD22PVEVQ45H2JA2NXH443AYJOPL5/
• https://security.gentoo.org/glsa/202004-17
• https://security.netapp.com/advisory/ntap-20191217-0003/Advisory