CCE-95050-1| Platform: cpe:/o:ubuntu:ubuntu_linux:20.04, cpe:/o:ubuntu:ubuntu_linux:22.04, cpe:/o:ubuntu:ubuntu_linux:23.04 | Date: (C)2020-10-15 (M)2023-09-01 |
Although IPv6 has many advantages over IPv4, few organizations have implemented IPv6.
Rationale:
If IPv6 is not to be used, it is recommended that it be disabled to reduce the attack surface of the system.
Fix:
Create or edit the file /etc/sysctl.conf and add the following lines and run sysctl -p command:
net.ipv6.conf.all.disable_ipv6=1net.ipv6.conf.default.disable_ipv6=1net.ipv6.conf.lo.disable_ipv6=1
Run the following command or reboot to apply the changes:
# sysctl -p
Parameter:
[yes/no]
Technical Mechanism:
Create or edit the file /etc/sysctl.conf and add the following lines:
net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1 net.ipv6.conf.lo.disable_ipv6=1
Run the following command or reboot to apply the changes:
# sysctl -p
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 7.2 | Attack Vector: NETWORK |
| Exploit Score: 3.9 | Attack Complexity: LOW |
| Impact Score: 2.7 | Privileges Required: NONE |
| Severity: HIGH | User Interaction: NONE |
| Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L | Scope: CHANGED |
| | Confidentiality: LOW |
| | Integrity: NONE |
| | Availability: LOW |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:92228 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:65929 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:85126 |
