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CVE-2015-8467

Published: 16 December 2015

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.

Notes

AuthorNote
mdeslaur
4.0.0 to 4.3.2
(related to Microsoft issue CVE-2015-2535)

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
samba
Launchpad, Ubuntu, Debian
precise Not vulnerable
(2:3.6.3-2ubuntu2.12)
trusty
Released (2:4.1.6+dfsg-1ubuntu2.14.04.11)
upstream
Released (4.3.3,4.2.7,4.1.22)
vivid
Released (2:4.1.13+dfsg-4ubuntu3.1)
wily
Released (2:4.1.17+dfsg-4ubuntu3.1)
xenial
Released (2:4.3.3+dfsg-1ubuntu1)
yakkety
Released (2:4.3.3+dfsg-1ubuntu1)
zesty
Released (2:4.3.3+dfsg-1ubuntu1)
Patches:
upstream: https://git.samba.org/?p=samba.git;a=commit;h=bf13cbd3f33c31483b172fc094b0e5946e899bc4 (4.1)
samba4
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.3.3,4.2.7,4.1.22)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H