Samba up to 4.3.2 input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Samba up to 4.3.2 and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation results in input validation. This vulnerability is known as CVE-2015-5296. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Samba up to 4.3.2 (File Transfer Software). Affected is an unknown code. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 12/18/2015 by Stefan Metzmacher with The Samba Team as CVE-2015-5296.html as confirmed advisory (Website). The advisory is shared for download at samba.org. This vulnerability is traded as CVE-2015-5296 since 07/01/2015. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 87779 (CentOS 7 : samba (CESA-2016:0006)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168811 (OpenSuSE Security Update for samba (openSUSE-SU-2016:1064-1)).

Upgrading to version 4.1.22, 4.2.7 or 4.3.3 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87779), SecurityFocus (BID 79732†), SecurityTracker (ID 1034493†) and Vulnerability Center (SBV-55439†). Similar entries are available at VDB-68821, VDB-69204, VDB-79858 and VDB-79859. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87779
Nessus Name: CentOS 7 : samba (CESA-2016:0006)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-634
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 4.1.22/4.2.7/4.3.3
Patch: 1ba49b8f389eda3414b14410c7fbcb4041ca06b1

Timelineinfo

07/01/2015 🔍
12/18/2015 +170 days 🔍
12/18/2015 +0 days 🔍
12/18/2015 +0 days 🔍
12/23/2015 +5 days 🔍
12/29/2015 +6 days 🔍
12/29/2015 +0 days 🔍
12/30/2015 +1 days 🔍
01/07/2016 +8 days 🔍
01/08/2016 +1 days 🔍
07/01/2022 +2366 days 🔍

Sourcesinfo

Product: samba.org

Advisory: CVE-2015-5296.html
Researcher: Stefan Metzmacher
Organization: The Samba Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5296 (🔍)
GCVE (CVE): GCVE-0-2015-5296
GCVE (VulDB): GCVE-100-79860

OVAL: 🔍

SecurityFocus: 79732 - Samba CVE-2015-5296 Man in the Middle Multiple Security Bypass Vulnerabilities
SecurityTracker: 1034493
Vulnerability Center: 55439 - Samba Remote Man-in-the-Middle due to Support for Unsigned Connections, Medium

See also: 🔍

Entryinfo

Created: 12/18/2015 15:14
Updated: 07/01/2022 12:29
Changes: 12/18/2015 15:14 (66), 06/20/2018 08:27 (27), 07/01/2022 12:29 (6)
Complete: 🔍
Cache ID: 216:D39:103

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