CCE-96082-3Platform: cpe:/o:suse:suse_linux_enterprise_server:15 | Date: (C)2022-09-27 (M)2023-07-04 |
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-middle attack.
Parameter:
[yes/no]
Technical Mechanism:
Fix:Configure the SUSE operating system to not accept IPv6 ICMP redirect messages by running the following command as an administrator:
> sudo sysctl -w net.ipv6.conf.all.accept_redirects=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.all.accept_redirects=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 |
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SCAP Repo OVAL Definition | oval:org.secpod.oval:def:84506 |