Access Restriction Bypass Affecting samba package, versions <2:4.3.3+dfsg-1ubuntu1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.86% (83rd percentile)

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  • Snyk IDSNYK-UBUNTU1604-SAMBA-357456
  • published29 Dec 2015
  • disclosed29 Dec 2015

Introduced: 29 Dec 2015

CVE-2015-8467  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 samba to version 2:4.3.3+dfsg-1ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

The samldb_check_user_account_control_acl function in dsdb/samdb/ldb_modules/samldb.c in Samba 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 does not properly check for administrative privileges during creation of machine accounts, which allows remote authenticated users to bypass intended access restrictions by leveraging the existence of a domain with both a Samba DC and a Windows DC, a similar issue to CVE-2015-2535.

CVSS Scores

version 3.1