CCE-91801-1| Platform: cpe:/o:apple:mac_os_x:10.13 | Date: (C)2018-02-22 (M)2023-07-04 |
Drop Incoming ICMPv4 Redirect Messages
ICMP redirects are broadcast in order to reshape network traffic. A malicious user could craft fake redirect packets and try to force all network traffic to pass through a network sniffer. If the system is not configured to ignore these packets, it could be suspectible to this kind of attack.
Parameter:
[yes/no]
Technical Mechanism:
To check if the system is configured to ignore ICMP redirect messages, run the following command:
sysctl net.inet.icmp.drop_redirect
If the value is not '1', this is a finding.
| 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:44294 |
