vulnwire
5.3med

CVE-2017-6928

Drupal access bypass vulnerability

Also known as GHSA-66mv-q8r2-hj8w

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.0%
percentile 64%
Public exploits
0
none known

Drupal core 7.x versions before 7.57 when using Drupal's private file system, Drupal will check to make sure a user has access to a file before allowing the user to view or download it. This check fails under certain conditions in which one module is trying to grant access to the file and another is trying to deny it, leading to an access bypass vulnerability. This vulnerability is mitigated by the fact that it only occurs for unusual site configurations.

Exploit prediction (EPSS)

1.02% probability of exploitation in the next 30 days, higher than 64% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.3CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD2.03.5AV:N/AC:M/Au:S/C:P/I:N/A:N
GitHub3.05.3CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected packages

EcosystemPackageAffectedFixed in
packagistdrupal/core
>=7.0, <7.57
7.57
packagistdrupal/drupal
>=7.0, <7.57
7.57

Affected products

  • Drupal.org Drupal Core

Classification

Weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource

References

  • debian.org /security/2018/dsa-4123 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • lists.debian.org /debian-lts-announce/2018/02/msg00030.html · mailing-list, x_refsource_MLIST, x_transferred
  • drupal.org /sa-core-2018-001 · x_refsource_CONFIRM, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2017-6928 · advisory
  • github.com /FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6928.yaml · web
  • github.com /FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6928.yaml · web
  • github.com /drupal/core · package

Sources

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