CCE-92020-7Platform: cpe:/o:ubuntu:ubuntu_linux:16.04 | Date: (C)2018-07-09 (M)2023-07-04 |
The HostbasedAuthentication parameter specifies if authentication is allowed through trusted hosts via the user of .rhosts, or /etc/hosts.equiv, along with successful public key client host authentication. This option only applies to SSH Protocol Version 2.
Rationale:
Even though the .rhosts files are ineffective if support is disabled in /etc/pam.conf, disabling the ability to use .rhosts files in SSH provides an additional layer of protection .
Parameter:
[no/yes]
Technical Mechanism:
Edit the /etc/ssh/sshd_config file to set the parameter as follows:
HostbasedAuthentication no
CCSS Severity: | CCSS Metrics: |
CCSS Score : 7.0 | Attack Vector: LOCAL |
Exploit Score: 1.0 | Attack Complexity: HIGH |
Impact Score: 5.9 | Privileges Required: NONE |
Severity: HIGH | User Interaction: REQUIRED |
Vector: AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | Scope: UNCHANGED |
| Confidentiality: HIGH |
| Integrity: HIGH |
| Availability: HIGH |
| |
References: Resource Id | Reference |
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SCAP Repo OVAL Definition | oval:org.secpod.oval:def:46281 |