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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-8467 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4.9 |
|---|---|
| Base Metrics | AV:A/AC:M/Au:S/C:P/I:P/A:P |
| Access Vector | Adjacent Network |
| Access Complexity | Medium |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Gluster Storage 3.1 | samba | Not affected |
| Red Hat Enterprise Linux 7 | samba | Not affected |
| Red Hat Enterprise Linux 6 | samba | Not affected |
| Red Hat Enterprise Linux 6 | samba4 | Not affected |
| Red Hat Enterprise Linux 5 | samba | Not affected |
| Red Hat Enterprise Linux 5 | samba3x | Not affected |
Vulmon