Vulnerability identifier: #VU22330

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14833

CWE-ID: CWE-477

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Samba
Server applications / Directory software, identity management

Vendor: Samba

Description

The vulnerability allows a remote attacker to bypass implemented password policy.

The vulnerability exists due to Samba does not pass the entire user's password when configured to use custom command to verify password complexity, if the password contains multibyte non-ACSII characters. A remote authenticated user can bypass implemented password policy and create weak passwords.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Samba: 4.11.0 - 4.11.1, 4.10.0 - 4.10.9, 4.9.0 - 4.9.14, 4.8.0 - 4.8.12, 4.7.0 - 4.7.12, 4.6.0 - 4.6.16, 4.5.0 - 4.5.16

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External links
http://www.samba.org/samba/security/CVE-2019-14833.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.