What’s Vulnerable › Vulnerabilities

CVE-2015-8467

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-12-29 · updated 2026-06-17
• Weakness: CWE-269

Description

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.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 15.04, 15.10
• Debian Linux: 7.0, 8.0
• Samba: from 4.0.0 before 4.1.22; from 4.2.0 before 4.2.7; from 4.3.0 before 4.3.3 — fixed in 4.1.22, 4.2.7, 4.3.3

How to fix

Upgrade to a fixed version: Samba 4.1.22, 4.2.7, 4.3.3. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html
• http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html
• http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
• http://www.debian.org/security/2016/dsa-3433
• http://www.securityfocus.com/bid/79735
• http://www.securitytracker.com/id/1034493
• http://www.ubuntu.com/usn/USN-2855-1
• http://www.ubuntu.com/usn/USN-2855-2
• https://bugzilla.redhat.com/show_bug.cgi?id=1290294
• https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=b000da128b5fb519d2d3f2e7fd20e4a25b7dae7d

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