Authentication Bypass Vulnerability in Samba with AD DC Configurations
CVE-2018-16857

7.4HIGH

Key Information:

Vendor

[unknown]

Status
Samba
Vendor
CVE Published:
28 November 2018

What is CVE-2018-16857?

Samba versions from 4.9.0 to 4.9.2, configured as Active Directory Domain Controllers (AD DC), may fail to enforce password policies effectively. Specifically, if these versions are upgraded from Samba 4.8 or earlier, the system might not properly monitor for bad passwords, leaving it susceptible to brute force attacks. This vulnerability emphasizes the importance of verifying that password protection mechanisms are operational following upgrades to prevent potential security risks.

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Affected Version(s)

samba 4.9.3

References

https://security.netapp.com/advisory/ntap-20181127-0001/
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https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16857
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http://www.securityfocus.com/bid/106024
vdb-entryx_refsource_BID

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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