CVE-2016-2114
samba: Samba based active directory domain controller does not enforce smb signing
Severity Score
5.9
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.
La implementación del protocolo SMB1 en Samba 4.x en versiones anteriores a 4.2.11, 4.3.x en versiones anteriores a 4.3.8 y 4.4.x en versiones anteriores a 4.4.2 no reconoce el ajuste "server signing = mandatory", lo que permite a atacantes man-in-the-middle suplantar servidores SMB modificando el flujo de datos cliente-servidor.
It was discovered that Samba did not enforce Server Message Block (SMB) signing for clients using the SMB1 protocol. A man-in-the-middle attacker could use this flaw to modify traffic between a client and a server.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2016-01-29 CVE Reserved
- 2016-04-12 CVE Published
- 2023-06-17 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-254: 7PK - Security Features
- CWE-300: Channel Accessible by Non-Endpoint
CAPEC
References (28)
| URL | Tag | Source |
|---|---|---|
| http://badlock.org | X_refsource_misc | |
| http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html | X_refsource_confirm |
|
| http://www.securityfocus.com/bid/86011 | Vdb Entry | |
| http://www.securitytracker.com/id/1035533 | Vdb Entry | |
| https://bto.bluecoat.com/security-advisory/sa122 | X_refsource_confirm | |
| https://www.samba.org/samba/history/samba-4.2.10.html | X_refsource_confirm | |
| https://www.samba.org/samba/latest_news.html#4.4.2 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.samba.org/samba/security/CVE-2016-2114.html | 2016-12-31 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.0 Search vendor "Samba" for product "Samba" and version "4.0.0" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.1 Search vendor "Samba" for product "Samba" and version "4.0.1" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.2 Search vendor "Samba" for product "Samba" and version "4.0.2" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.3 Search vendor "Samba" for product "Samba" and version "4.0.3" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.4 Search vendor "Samba" for product "Samba" and version "4.0.4" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.5 Search vendor "Samba" for product "Samba" and version "4.0.5" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.6 Search vendor "Samba" for product "Samba" and version "4.0.6" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.7 Search vendor "Samba" for product "Samba" and version "4.0.7" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.8 Search vendor "Samba" for product "Samba" and version "4.0.8" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.9 Search vendor "Samba" for product "Samba" and version "4.0.9" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.10 Search vendor "Samba" for product "Samba" and version "4.0.10" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.11 Search vendor "Samba" for product "Samba" and version "4.0.11" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.12 Search vendor "Samba" for product "Samba" and version "4.0.12" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.13 Search vendor "Samba" for product "Samba" and version "4.0.13" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.14 Search vendor "Samba" for product "Samba" and version "4.0.14" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.15 Search vendor "Samba" for product "Samba" and version "4.0.15" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.16 Search vendor "Samba" for product "Samba" and version "4.0.16" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.17 Search vendor "Samba" for product "Samba" and version "4.0.17" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.18 Search vendor "Samba" for product "Samba" and version "4.0.18" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.19 Search vendor "Samba" for product "Samba" and version "4.0.19" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.20 Search vendor "Samba" for product "Samba" and version "4.0.20" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.21 Search vendor "Samba" for product "Samba" and version "4.0.21" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.22 Search vendor "Samba" for product "Samba" and version "4.0.22" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.23 Search vendor "Samba" for product "Samba" and version "4.0.23" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.24 Search vendor "Samba" for product "Samba" and version "4.0.24" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.25 Search vendor "Samba" for product "Samba" and version "4.0.25" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.0.26 Search vendor "Samba" for product "Samba" and version "4.0.26" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.0 Search vendor "Samba" for product "Samba" and version "4.1.0" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.1 Search vendor "Samba" for product "Samba" and version "4.1.1" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.2 Search vendor "Samba" for product "Samba" and version "4.1.2" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.3 Search vendor "Samba" for product "Samba" and version "4.1.3" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.4 Search vendor "Samba" for product "Samba" and version "4.1.4" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.5 Search vendor "Samba" for product "Samba" and version "4.1.5" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.6 Search vendor "Samba" for product "Samba" and version "4.1.6" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.7 Search vendor "Samba" for product "Samba" and version "4.1.7" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.8 Search vendor "Samba" for product "Samba" and version "4.1.8" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.9 Search vendor "Samba" for product "Samba" and version "4.1.9" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.10 Search vendor "Samba" for product "Samba" and version "4.1.10" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.11 Search vendor "Samba" for product "Samba" and version "4.1.11" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.12 Search vendor "Samba" for product "Samba" and version "4.1.12" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.13 Search vendor "Samba" for product "Samba" and version "4.1.13" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.14 Search vendor "Samba" for product "Samba" and version "4.1.14" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.15 Search vendor "Samba" for product "Samba" and version "4.1.15" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.16 Search vendor "Samba" for product "Samba" and version "4.1.16" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.17 Search vendor "Samba" for product "Samba" and version "4.1.17" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.18 Search vendor "Samba" for product "Samba" and version "4.1.18" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.19 Search vendor "Samba" for product "Samba" and version "4.1.19" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.20 Search vendor "Samba" for product "Samba" and version "4.1.20" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.21 Search vendor "Samba" for product "Samba" and version "4.1.21" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.22 Search vendor "Samba" for product "Samba" and version "4.1.22" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.1.23 Search vendor "Samba" for product "Samba" and version "4.1.23" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.0 Search vendor "Samba" for product "Samba" and version "4.2.0" | rc1 |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.0 Search vendor "Samba" for product "Samba" and version "4.2.0" | rc2 |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.0 Search vendor "Samba" for product "Samba" and version "4.2.0" | rc3 |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.0 Search vendor "Samba" for product "Samba" and version "4.2.0" | rc4 |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.1 Search vendor "Samba" for product "Samba" and version "4.2.1" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.2 Search vendor "Samba" for product "Samba" and version "4.2.2" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.3 Search vendor "Samba" for product "Samba" and version "4.2.3" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.4 Search vendor "Samba" for product "Samba" and version "4.2.4" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.5 Search vendor "Samba" for product "Samba" and version "4.2.5" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.6 Search vendor "Samba" for product "Samba" and version "4.2.6" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.7 Search vendor "Samba" for product "Samba" and version "4.2.7" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.8 Search vendor "Samba" for product "Samba" and version "4.2.8" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.2.9 Search vendor "Samba" for product "Samba" and version "4.2.9" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.0 Search vendor "Samba" for product "Samba" and version "4.3.0" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.1 Search vendor "Samba" for product "Samba" and version "4.3.1" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.2 Search vendor "Samba" for product "Samba" and version "4.3.2" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.3 Search vendor "Samba" for product "Samba" and version "4.3.3" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.4 Search vendor "Samba" for product "Samba" and version "4.3.4" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.5 Search vendor "Samba" for product "Samba" and version "4.3.5" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.3.6 Search vendor "Samba" for product "Samba" and version "4.3.6" | - |
Affected
| ||||||
| Samba Search vendor "Samba" | Samba Search vendor "Samba" for product "Samba" | 4.4.0 Search vendor "Samba" for product "Samba" and version "4.4.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||