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Improper authentication for shared folders

Description​

The folders that are shared over the network do not require any authentication to be accessed.

Impact​

Access to sensitive information stored in folders.

Recommendation​

Limit the access to shared folders only to authorized users with their credentials.

Threat​

Anonymous attacker from local network.

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: L
  • Privileges required: L
  • User interaction: N
  • Scope: U
  • Confidentiality: H
  • Integrity: N
  • Availability: N

Temporal​

  • Exploit code maturity: H
  • Remediation level: U
  • Report confidence: C

Result​

  • Vector string: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:H/RL:U/RC:C
  • Score:
    • Base: 5.7
    • Temporal: 5.7
  • 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: A
  • Attack complexity: L
  • Attack Requirements: N
  • Privileges required: L
  • User interaction: N
  • Confidentiality (VC): H
  • Integrity (VI): N
  • Availability (VA): N
  • Confidentiality (SC): H
  • Integrity (SI): N
  • Availability (SA): N

Threat 4.0​

  • Exploit maturity: A

Result 4.0​

  • Vector string: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:A
  • Score:
    • CVSS-BT: 8.2
  • Severity:
    • CVSS-BT: High

Compliant code​

acl "https-<instance>";
authenticate (user,group) {
database = "default";
method = "basic";
};
deny absolute (all) user != "UserA";

Non compliant code​

A shared folder that does not require authentication credentials

acl "https-<instance>";
authenticate (user,group) {
database = "default";
method = "basic";
};
allow (all)

Requirements​

Fixes​

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