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Insecure service configuration - Firewall


The server where the application is hosted has port 8080 open running the http-proxy service.


  • Establish, from the Internet, a connection with the port open.
  • Allow malicious clients to mount attacks originating from the IP address of the server running the proxy, without requiring authentication from the attacker.
  • Access to the internal network on which the server is located


Securely configure the vulnerable service, so that it can only be accessed by authorized users.


Anonymous attacker from the Internet.

Expected Remediation Time

⌚ 45 minutes.


Default score using CVSS 3.1. It may change depending on the context of the src.


  • Attack vector: N
  • Attack complexity: L
  • Privileges required: N
  • User interaction: N
  • Scope: U
  • Confidentiality: N
  • Integrity: L
  • Availability: N


  • Exploit code maturity: P
  • Remediation level: W
  • Report confidence: R


  • Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:W/RC:R
  • Score:
    • Base: 5.3
    • Temporal: 4.7
  • 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: N
  • Attack complexity: L
  • Attack Requirements: N
  • Privileges required: N
  • User interaction: N
  • Confidentiality (VC): N
  • Integrity (VI): L
  • Availability (VA): N
  • Confidentiality (SC): N
  • Integrity (SI): N
  • Availability (SA): N

Threat 4.0

  • Exploit maturity: P

Result 4.0

  • Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
  • Score:
    • CVSS-BT: 5.5
  • Severity:
    • CVSS-BT: Medium

Compliant code

All sensitive services are configured with restricted access

port: 8443
key-store: classpath:keystore.jks
key-store-password: password.secret
admin: allow
user: deny

Non compliant code

There is a vulnerable service, configured for public access

port: 8080
key-store: keystore.ks
key-store-password: "password"



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