Files uploaded by anonymous users into a private file system can be accessed by other anonymous users
CVE-2017-6922

6.5MEDIUM

Key Information:

Vendor

Drupal
Status
Drupal Core
Vendor
CVE Published:
22 January 2019

What is CVE-2017-6922?

In Drupal core 8.x prior to 8.3.4 and Drupal core 7.x prior to 7.56; Private files that have been uploaded by an anonymous user but not permanently attached to content on the site should only be visible to the anonymous user that uploaded them, rather than all anonymous users. Drupal core did not previously provide this protection, allowing an access bypass vulnerability to occur. This issue is mitigated by the fact that in order to be affected, the site must allow anonymous users to upload files into a private file system.

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Affected Version(s)

Drupal Core Drupal 8 < 8.3.3

Drupal Core Drupal 7 < 7.55

References

https://www.debian.org/security/2017/dsa-3897
vendor-advisoryx_refsource_DEBIAN
http://www.securityfocus.com/bid/99219
vdb-entryx_refsource_BID
https://www.drupal.org/forum/newsletters/security-advisor...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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