070 – Insecure service configuration - ELB
Description
A misconfiguration or default setting on Elastic Load Balancers that can cause to unintentionally increase the attack surface of the company cloud infrastructure.
Impact
- Result in the connection between load balancer and server being exploited. - The front-end connection between the client and the load balancer is vulnerable to eavesdropping and man-in-the-middle (MitM) attacks.
Recommendation
- Application load balancers should use acceptable policies. - Create a custom ELB SSL security policy that contains secure ciphers. - Strongly advised that the load balancer uses a secure listener.
Threat
Unauthorized attacker from adjacent network performing a MitM.
Expected Remediation Time
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: N
- User interaction: A
- Confidentiality (VC): L
- Integrity (VI): L
- Availability (VA): N
- Confidentiality (SC): N
- Integrity (SI): N
- Availability (SA): N
Threat 4.0
- Exploit maturity: X