Samba 3.0/4.2.9/4.3.6/4.4.0 IPC Traffic 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Samba 3.0/4.2.9/4.3.6/4.4.0. It has been classified as critical. This affects an unknown function of the component IPC Traffic Handler. The manipulation leads to 7pk security. This vulnerability is traded as CVE-2016-2115. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Samba 3.0/4.2.9/4.3.6/4.4.0 (File Transfer Software) and classified as critical. This issue affects an unknown code block of the component IPC Traffic Handler. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is integrity. The summary by CVE is:

Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not require SMB signing within a DCERPC session over ncacn_np, which allows man-in-the-middle attackers to spoof SMB clients by modifying the client-server data stream.

The weakness was shared 04/12/2016 (Website). The advisory is shared at samba.org. The identification of this vulnerability is CVE-2016-2115 since 01/29/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 90488 (Oracle Linux 5 : samba3x (ELSA-2016-0613) (Badlock)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196447 (Ubuntu Security Notification for Samba Vulnerabilities (USN-2950-1) (BADLOCK)).

Upgrading to version 4.4.1, 4.3.7 or 4.2.10 eliminates this vulnerability. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (111942), Tenable (90488) and Vulnerability Center (SBV-58157†). The entries VDB-82210, VDB-82404, VDB-82405 and VDB-82406 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90488
Nessus Name: Oracle Linux 5 : samba3x (ELSA-2016-0613) (Badlock)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850058
OpenVAS Name: CentOS Update for openchange CESA-2016:0612 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Samba 4.4.1/4.3.7/4.2.10

Timelineinfo

01/29/2016 🔍
04/12/2016 +74 days 🔍
04/12/2016 +0 days 🔍
04/13/2016 +1 days 🔍
04/13/2016 +0 days 🔍
04/13/2016 +0 days 🔍
04/15/2016 +2 days 🔍
04/24/2016 +9 days 🔍
07/24/2022 +2282 days 🔍

Sourcesinfo

Product: samba.org

Advisory: RHSA-2016:0613
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2115 (🔍)
GCVE (CVE): GCVE-0-2016-2115
GCVE (VulDB): GCVE-100-82409

OVAL: 🔍

X-Force: 111942 - Samba IPC traffic security bypass
SecurityTracker: 1035533
Vulnerability Center: 58157 - Samba 3.0.0 - 4.2.9, 4.3.0 - 4.3.6 and 4.4.0 Remote Information Disclosure via Man-in-the-Middle Attack, Medium

See also: 🔍

Entryinfo

Created: 04/15/2016 12:00
Updated: 07/24/2022 20:02
Changes: 04/15/2016 12:00 (75), 02/04/2019 14:22 (10), 07/24/2022 19:47 (4), 07/24/2022 19:55 (1), 07/24/2022 20:02 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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