Samba up to 4.1.0 Private Key Encryption cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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2.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Samba up to 4.1.0. This impacts an unknown function of the component Private Key Encryption. Such manipulation leads to cryptographic issue. This vulnerability is traded as CVE-2013-4476. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Samba up to 4.1.0 (File Transfer Software) and classified as problematic. Affected by this issue is some unknown functionality of the component Private Key Encryption. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality. CVE summarizes:

Samba 4.0.x before 4.0.11 and 4.1.x before 4.1.1, when LDAP or HTTP is provided over SSL, uses world-readable permissions for a private key, which allows local users to obtain sensitive information by reading the key file, as demonstrated by access to the local filesystem on an AD domain controller.

The weakness was shared 11/11/2013 as not defined advisory (Website). The advisory is available at samba.org. The vendor cooperated in the coordination of the public release. This vulnerability is handled as CVE-2013-4476 since 06/12/2013. The exploitation is known to be difficult. Local access is required to approach this attack. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 70964 (FreeBSD : samba -- Private key in key.pem world readable (479efd57-516e-11e3-9b62-000c292e4fd8)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166598 (OpenSuSE Security Update for Samba (openSUSE-SU-2013:1921-1)).

Upgrading to version 3.6.20, 4.0.11 or 4.1.1 eliminates this vulnerability. The upgrade is hosted for download at samba.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (70964), SecurityFocus (BID 63649†), OSVDB (99704†), Secunia (SA55638†) and Vulnerability Center (SBV-42347†). The entry VDB-11176 is related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.9
VulDB Temp Score: 2.8
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: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 70964
Nessus Name: FreeBSD : samba -- Private key in key.pem world readable (479efd57-516e-11e3-9b62-000c292e4fd8)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

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 3.6.20/4.0.11/4.1.1

Timelineinfo

06/12/2013 🔍
11/11/2013 +152 days 🔍
11/11/2013 +0 days 🔍
11/11/2013 +0 days 🔍
11/13/2013 +2 days 🔍
11/18/2013 +5 days 🔍
11/20/2013 +2 days 🔍
11/24/2013 +4 days 🔍
06/02/2021 +2747 days 🔍

Sourcesinfo

Product: samba.org

Advisory: samba.org
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-4476 (🔍)
GCVE (CVE): GCVE-0-2013-4476
GCVE (VulDB): GCVE-100-11174

IAVM: 🔍

SecurityFocus: 63649
Secunia: 55638 - Samba Insecure File Permissions and Security Bypass Security Issues, Not Critical
OSVDB: 99704
Vulnerability Center: 42347 - Samba 4.0.0 Before 4.0.11 and 4.1.0 Local Leakage of the Key File When LDAP or HTTP are Provided Over SSL, Low

See also: 🔍

Entryinfo

Created: 11/18/2013 08:53
Updated: 06/02/2021 09:12
Changes: 11/18/2013 08:53 (47), 05/15/2017 11:47 (31), 06/02/2021 09:12 (3)
Complete: 🔍
Committer:
Cache ID: 216:6BC:103

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