CCE-91399-6| Platform: cpe:/o:apple:mac_os_x:10.11 | Date: (C)2018-02-22 (M)2023-07-04 |
Don't Send ICMPv4 Redirect Messages
ICMP redirects are broadcast in order to reshape network traffic. A malicious user could use the system to send fake redirect packets and try to force all network traffic to pass through a network sniffer. Disabling ICMP redirect broadcasts mitigates this risk.
Parameter:
[no/yes, no/yes]
Technical Mechanism:
To check if the system is configured to send ICMP redirects, run the following command:
sysctl net.inet.ip.redirect net.inet6.ip6.redirect
If the values are not set to '0', this is a finding.
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 6.3 | Attack Vector: ADJACENT_NETWORK |
| Exploit Score: 2.8 | Attack Complexity: LOW |
| Impact Score: 3.4 | Privileges Required: NONE |
| Severity: MEDIUM | User Interaction: NONE |
| Vector: AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | Scope: UNCHANGED |
| | Confidentiality: LOW |
| | Integrity: LOW |
| | Availability: LOW |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:43985 |
