Description

Due to a misconfiguration of the Redis service, it is possible to connect to the dictionary server and obtain business information by deserializing objects contained in the keys, from which the following can be extracted:
- List of users.
- Employee information such as IDs and names.
- Customer information such as Nits, names and IDs.

Impact

Obtain information from users, customers and employees.

Recommendation

According to the classification of the information found, establish the necessary controls so that the information is accessible only to the indicated persons and from authorized segments.

Threat

Internal attacker with Redis credentials.

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: H
• User interaction: N
• Scope: U
• Confidentiality: H
• Integrity: N
• Availability: N

Temporal

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

Result

• Vector string: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:X/RL:X/RC:X
• Score:
• Base: 4.5
• Temporal: 4.5
• 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: H
• User interaction: N
• Confidentiality (VC): H
• Integrity (VI): N
• 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:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
• Score:
• CVSS-BT: 6.8
• Severity:
• CVSS-BT: Medium

Compliant code

Servers with sensitive information have protected modes enabled

                serverConfiguration:
  bind * -::*
  enable-protected-configs no
  enable-debug-command no
  tls-port 6379
  tls-key-file redis.key
  tls-auth-clients no
  tls-protocols "TLSv1.2 TLSv1.3"
  tls-ciphersuites TLS_CHACHA20_POLY1305_SHA256
  protected-mode yes

            

Non compliant code

The server configuration does not enable protected mode

                serverConfiguration:
  bind * -::*
  enable-protected-configs no
  enable-debug-command no
  tls-port 6379
  tls-key-file redis.key
  tls-auth-clients no
  tls-protocols "TLSv1.2 TLSv1.3"
  tls-ciphersuites TLS_CHACHA20_POLY1305_SHA256
  protected-mode no

            

Requirements

• 176.Restrict system objects
• 177.Avoid caching and temporary files
• 261.Avoid exposing sensitive information
• 300.Mask sensitive data

Fixes

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