Skip to main content

Business information leak - Redis

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 vulnerability.

Base​

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

Temporal​

  • Exploit code madurity: 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

Code Examples​

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​

free trial

Search for vulnerabilities in your apps for free with our automated security testing! Start your 21-day free trial and discover the benefits of our Continuous Hacking Machine Plan. If you prefer a full service that includes the expertise of our ethical hackers, don't hesitate to contact us for our Continuous Hacking Squad Plan.