Samba up to 4.4.15/4.5.12/4.6.7 Signing 7pk security

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CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability classified as critical was found in Samba up to 4.4.15/4.5.12/4.6.7 (File Transfer Software). This vulnerability affects some unknown functionality of the component Signing Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 09/21/2017. The weakness was shared 09/21/2017 by Stefan Metzmacher as confirmed advisory (Website). The advisory is available at samba.org. This vulnerability was named CVE-2017-12150 since 08/01/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1211 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 103408 (RHEL 6 : samba4 (RHSA-2017:2791)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157562 (Oracle Enterprise Linux Security Update for samba (ELSA-2017-2789)).

Upgrading to version 4.4.16, 4.5.14 or 4.6.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 100918), SecurityTracker (ID 1039401) and Tenable (103408). The entries 107075 and 107076 are related to this item.

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-254
ATT&CK: T1211

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103408
Nessus Name: RHEL 6 : samba4 (RHSA-2017:2791)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53754
OpenVAS Name: Debian Security Advisory DSA 3983-1 (samba - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Samba 4.4.16/4.5.14/4.6.8

Timelineinfoedit

08/01/2017 🔍
09/20/2017 +50 days 🔍
09/21/2017 +1 days 🔍
09/21/2017 +0 days 🔍
09/21/2017 +0 days 🔍
09/21/2017 +0 days 🔍
09/22/2017 +1 days 🔍
09/25/2017 +3 days 🔍
07/26/2018 +303 days 🔍
01/14/2021 +903 days 🔍

Sourcesinfoedit

Product: https://www.samba.org/

Advisory: samba.org
Researcher: Stefan Metzmacher
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12150 (🔍)
OVAL: 🔍

SecurityFocus: 100918 - Samba CVE-2017-12150 Man in the Middle Security Bypass Vulnerability
SecurityTracker: 1039401

See also: 🔍

Entryinfoedit

Created: 09/25/2017 11:06 AM
Updated: 01/14/2021 11:19 AM
Changes: (1) source_cve_cna
Complete: 🔍

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