CCE-96084-9| Platform: cpe:/o:suse:suse_linux_enterprise_server:15 | Date: (C)2022-09-27 (M)2023-07-04 |
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of source-routed traffic, such as when IPv4 forwarding is enabled and the system is functioning as a router.
Parameter:
[yes/no]
Technical Mechanism:
Fix:Configure the SUSE operating system to disable IPv6 default source routing by running the following command as an administrator:
> sudo sysctl -w net.ipv6.conf.default.accept_source_route=0
If "0" is not the system's default value, add or update the following line in "/etc/sysctl.d/99-stig.conf":
> sudo sh -c 'echo "net.ipv6.conf.default.accept_source_route=0" >> /etc/sysctl.d/99-stig.conf'
> sudo sysctl --system
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 8.2 | Attack Vector: NETWORK |
| Exploit Score: 3.9 | Attack Complexity: LOW |
| Impact Score: 4.2 | Privileges Required: NONE |
| Severity: HIGH | User Interaction: NONE |
| Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H | Scope: UNCHANGED |
| | Confidentiality: LOW |
| | Integrity: NONE |
| | Availability: HIGH |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:84508 |
