ARP spoofing
Description
It is possible to supersede other MAC addresses in the network because the associated switch lacks protection mechanisms, such as PortSecurity.
Impact
- Steal sensitive information.
- Facilitate other attacks such as Denial-of-Service DoS attacks, session hijacking and man-in-the-middle MitM attacks.
Recommendation
Set network controls (PortSecurity) in the affected switches.
Threat
Attacker from the Internet performing a MitM attack.
Expected Remediation Time
⌚ 60 minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the src.
Base
- Attack vector: A
- Attack complexity: H
- Privileges required: L
- User interaction: N
- Scope: U
- Confidentiality: H
- Integrity: H
- Availability: L
Temporal
- Exploit code maturity: P
- Remediation level: W
- Report confidence: X
Result
- Vector string: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L/E:P/RL:W/RC:X
- Score:
- Base: 6.7
- Temporal: 6.2
- Severity:
- Base: Medium
- Temporal: Medium
Score 4.0
Default score using CVSS 4.0 . It may change depending on the context of the src.
Base 4.0
- Attack vector: A
- Attack complexity: H
- Attack Requirements: N
- Privileges required: L
- User interaction: N
- Confidentiality (VC): H
- Integrity (VI): H
- Availability (VA): L
- Confidentiality (SC): N
- Integrity (SI): N
- Availability (SA): N
Threat 4.0
- Exploit maturity: P
Result 4.0
- Vector string: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:P
- Score:
- CVSS-BT: 6.6
- Severity:
- CVSS-BT: Medium
Compliant code
All switches should have the port security enabled
server {
index: "index.html";
listen: "localhost:4446 ssl";
server_name: "localhost";
port {
port-number: "4446";
port-security:enabled;
}
}
Non compliant code
There is a switch with port-security disabled
server {
index: "index.html";
listen: "localhost:4446 ssl";
server_name: "localhost";
port {
port-number: "4446";
port-security: disabled;
}
}
Requirements
Fixes
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