Red Hat Enterprise Linux 8 update for samba

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU69151

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38023

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to security features bypass in Netlogon RPC. A remote attacker can bypass the Netlogon cryptography feature for signing and sealing traffic during Netlogon authentication.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux Server - AUS: 8.2

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 8.2

Red Hat Enterprise Linux Server - TUS: 8.2

samba (Red Hat package): before 4.11.2-22.el8_2

External links

http://access.redhat.com/errata/RHSA-2023:0638

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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