Samba up to 4.6.15/4.7.8/4.8.3 Active Directory LDAP Server information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.0 | $0-$5k | 0.00 |
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 vulnerability database at Tenable (111996). Entries connected to this vulnerability are available at 123138, 123140 and 123143.
Product
Type
Name
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
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.0VulDB 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.): 🔍
CVSSv2
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: 🔍
Exploiting
Class: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592
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 Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Samba 4.6.16/4.7.9/4.8.4
Timeline
05/09/2018 🔍08/14/2018 🔍
08/14/2018 🔍
08/17/2018 🔍
08/20/2018 🔍
08/22/2018 🔍
08/22/2018 🔍
08/23/2018 🔍
05/04/2023 🔍
Sources
Product: samba.orgAdvisory: USN-3738-1
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-10919 (🔍)
OVAL: 🔍
SecurityFocus: 105081 - Samba CVE-2018-10919 Access Bypass Vulnerability
See also: 🔍
Entry
Created: 08/23/2018 06:40Updated: 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: 🔍
No comments yet. Languages: en.
Please log in to comment.