CCE-90615-6| Platform: cpe:/o:centos:centos:7,cpe:/o:redhat:enterprise_linux:7 | Date: (C)2017-06-29 (M)2023-07-04 |
To set the default policy to DROP (instead of ACCEPT) for
the built-in FORWARD chain which processes packets that will be forwarded from
one interface to another,
add or correct the following line in
'/etc/sysconfig/iptables':
':FORWARD DROP [0:0]'
Parameter:
[yes/no]
Technical Mechanism:
In 'iptables', the default policy is applied only after all
the applicable rules in the table are examined for a match. Setting the
default policy to 'DROP' implements proper design for a firewall, i.e.
any packets which are not explicitly permitted should not be
accepted.
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 9.3 | Attack Vector: NETWORK |
| Exploit Score: 3.9 | Attack Complexity: LOW |
| Impact Score: 4.7 | Privileges Required: NONE |
| Severity: CRITICAL | User Interaction: NONE |
| Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H | Scope: CHANGED |
| | Confidentiality: LOW |
| | Integrity: NONE |
| | Availability: HIGH |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:31030 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:30307 |
