Samba up to 4.6.15/4.7.8/4.8.3 Active Directory LDAP Server information disclosure

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Samba up to 4.6.15/4.7.8/4.8.3. The impacted element is an unknown function of the component Active Directory LDAP Server. Performing a manipulation results in information disclosure. This vulnerability is identified as CVE-2018-10919. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Samba up to 4.6.15/4.7.8/4.8.3 (File Transfer Software). This affects an unknown code of the component Active Directory LDAP Server. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

The Samba Active Directory LDAP server was vulnerable to an information disclosure flaw because of missing access control checks. An authenticated attacker could use this flaw to extract confidential attribute values using LDAP search expressions. Samba versions before 4.6.16, 4.7.9 and 4.8.4 are vulnerable.

The bug was discovered 08/14/2018. The weakness was released 08/22/2018 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2018-10919 since 05/09/2018. It is possible to initiate the attack remotely. A authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111996 (Slackware 14.0 / 14.1 / 14.2 / current : samba (SSA:2018-229-02)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Slackware Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171521 (OpenSUSE Security Update for samba (openSUSE-SU-2018:2400-1)).

Upgrading to version 4.6.16, 4.7.9 or 4.8.4 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111996) and SecurityFocus (BID 105081†). Entries connected to this vulnerability are available at VDB-123138, VDB-123140 and VDB-123143. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• File Transfer Software

Name

• Samba

Version

• 4.6.0
• 4.6.1
• 4.6.2
• 4.6.3
• 4.6.4
• 4.6.5
• 4.6.6
• 4.6.7
• 4.6.8
• 4.6.9
• 4.6.10
• 4.6.11
• 4.6.12
• 4.6.13
• 4.6.14
• 4.6.15
• 4.7.0
• 4.7.1
• 4.7.2
• 4.7.3
• 4.7.4
• 4.7.5
• 4.7.6
• 4.7.7
• 4.7.8
• 4.8.0
• 4.8.1
• 4.8.2
• 4.8.3

License

• open-source

Website

• Product: https://www.samba.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 111996
Nessus Name: Slackware 14.0 / 14.1 / 14.2 / current : samba (SSA:2018-229-02)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Samba 4.6.16/4.7.9/4.8.4

Timelineinfo

05/09/2018 🔍
08/14/2018 +97 days 🔍
08/14/2018 +0 days 🔍
08/17/2018 +3 days 🔍
08/20/2018 +3 days 🔍
08/22/2018 +1 days 🔍
08/22/2018 +0 days 🔍
08/23/2018 +1 days 🔍
05/04/2023 +1715 days 🔍

Sourcesinfo

Product: samba.org

Advisory: USN-3738-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10919 (🔍)
GCVE (CVE): GCVE-0-2018-10919
GCVE (VulDB): GCVE-100-123141

OVAL: 🔍

SecurityFocus: 105081 - Samba CVE-2018-10919 Access Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 08/23/2018 06:40
Updated: 05/04/2023 09:51
Changes: 08/23/2018 06:40 (75), 03/17/2020 15:23 (5), 05/04/2023 09:47 (4), 05/04/2023 09:51 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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