CVE-2018-16857

Severity Score

5.9

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Samba from version 4.9.0 and before version 4.9.3 that have AD DC configurations watching for bad passwords (to restrict brute forcing of passwords) in a window of more than 3 minutes may not watch for bad passwords at all. The primary risk from this issue is with regards to domains that have been upgraded from Samba 4.8 and earlier. In these cases the manual testing done to confirm an organisation's password policies apply as expected may not have been re-done after the upgrade.

Samba, desde la versión 4.9.0 y antes de la versión 4.9.3, con las configuraciones AD DC buscando malas contraseñas (para restringir la adivinación de contraseñas por fuerza bruta) durante más de 3 minutos podría no buscar malas contraseñas en absoluto. El riesgo principal de este problema está relacionado con los dominios que se han actualizado desde Samba 4.8 y anteriores. En estos casos, las pruebas manuales realizadas para confirmar que las políticas de contraseña de una organización se aplican como deberían podrían no volver a realizarse tras la actualización.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-09-11 CVE Reserved
2018-11-28 CVE Published
2024-05-30 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-358: Improperly Implemented Security Check for Standard

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/106024	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16857	Issue Tracking
https://security.netapp.com/advisory/ntap-20181127-0001	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.samba.org/samba/security/CVE-2018-16857.html	2019-10-09

URL	Date	SRC
https://security.gentoo.org/glsa/202003-52	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Samba Search vendor "Samba"		Samba Search vendor "Samba" for product "Samba"				>= 4.9.0 < 4.9.3 Search vendor "Samba" for product "Samba" and version " >= 4.9.0 < 4.9.3"		-		Affected