Samba 4.0.0/4.0.1/4.0.2/4.0.3 Active Directory Domain Controller access control

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Samba 4.0.0/4.0.1/4.0.2/4.0.3. This affects an unknown function of the component Active Directory Domain Controller. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2013-1863. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Samba 4.0.0/4.0.1/4.0.2/4.0.3 (File Transfer Software). This affects some unknown processing of the component Active Directory Domain Controller. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Samba 4.x before 4.0.4, when configured as an Active Directory domain controller, uses world-writable permissions on non-default CIFS shares, which allows remote authenticated users to read, modify, create, or delete arbitrary files via standard filesystem operations.

The weakness was shared 03/19/2013 by Ricky Nance as confirmed advisory (Website). The advisory is shared at samba.org. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2013-1863 since 02/19/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. Required for exploitation is a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 65631 (Samba 4.x < 4.0.4 AD DC File Permissions), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 4.0.4 eliminates this vulnerability. The upgrade is hosted for download at ftp.samba.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.samba.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (82955), Tenable (65631), OSVDB (91503†), Secunia (SA52751†) and SecurityTracker (ID 1028312†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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: 65631
Nessus Name: Samba 4.x < 4.0.4 AD DC File Permissions
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Samba 4.0.4
Patch: ftp.samba.org

Timelineinfo

02/19/2013 🔍
03/19/2013 +28 days 🔍
03/19/2013 +0 days 🔍
03/19/2013 +0 days 🔍
03/19/2013 +0 days 🔍
03/19/2013 +0 days 🔍
03/20/2013 +1 days 🔍
03/20/2013 +0 days 🔍
03/22/2013 +2 days 🔍
03/27/2013 +5 days 🔍
05/06/2021 +2962 days 🔍

Sourcesinfo

Product: samba.org

Advisory: samba.org
Researcher: Ricky Nance
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-1863 (🔍)
GCVE (CVE): GCVE-0-2013-1863
GCVE (VulDB): GCVE-100-8049
X-Force: 82955
Secunia: 52751 - IBM Storwize V7000 Unified CIFS Attribute Handling Security Issue, Less Critical
OSVDB: 91503
SecurityTracker: 1028312 - Samba Active Directory Domain Controller File Permission Flaw Lets Remote Authenticated Users Access Files
Vulnerability Center: 38928 - Samba 4.0.0rc6 - 4.0.3 Remote Authenticated File Read, Write and Delete When Configured as AD DC, Medium

Entryinfo

Created: 03/20/2013 16:04
Updated: 05/06/2021 14:17
Changes: 03/20/2013 16:04 (49), 04/26/2017 17:53 (28), 05/06/2021 14:17 (3)
Complete: 🔍
Committer:
Cache ID: 216:FBB:103

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

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