Remote command execution

Description

The system builds OS commands using inputs that can be manipulated externally, it does not correctly neutralize special elements that could modify the OS command.

Impact

Execute unauthorized code or commands.

Recommendation

• If at all possible, use standard library calls rather than external processes to recreate the desired functionality.
• Keep as much data as possible used to generate command outside of external control.
• Properly escape the arguments used to generate the command and avoid special characters.

Threat

Authenticated attacker from the Internet.

Expected Remediation Time

⌚ minutes.

Score

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

Base

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

Temporal

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

Result

• Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:X/RL:X/RC:X
• Score:
  • Base: 10.0
  • Temporal: 10.0
• Severity:
  • Base: Critical
  • Temporal: Critical

Requirements

• 173.Discard unsafe inputs
• 265.Restrict access to critical processes
• 266.Disable insecure functionalities

Fixes

• Scala
• Dart
• Elixir
• Go
• Python
• Ruby
• C-Sharp
• Java
• PHP
• TypeScript

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