Insecure service configuration - ELB

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

⌚ 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: N
  • User interaction: R
  • Scope: U
  • Confidentiality: L
  • Integrity: L
  • Availability: N

Temporal

  • Exploit code maturity: X
  • Remediation level: X
  • Report confidence: X

Result

  • Vector string: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X
  • Score:
    • Base: 3.7
    • Temporal: 3.7
  • Severity:
    • Base: Low
    • Temporal: Low

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

Result 4.0

  • Vector string: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X
  • Score:
    • CVSS-BT: 2.0
  • Severity:
    • CVSS-BT: Low

Requirements

Fixes

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