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sash - Privilege Escalation

ID: privesc-sash

Severity: high

Author: daffainfo

Tags: code,linux,sash,privesc,local

sash is a stand-alone shell that is commonly used for system recovery and maintenance. It provides a minimal set of commands and features, making it useful in situations where the regular shell environment may not be available or functional. sash is often used in emergency situations to troubleshoot and repair systems.

id: privesc-sash
info:
name: sash - Privilege Escalation
author: daffainfo
severity: high
description: |
sash is a stand-alone shell that is commonly used for system recovery and maintenance. It provides a minimal set of commands and features, making it useful in situations where the regular shell environment may not be available or functional. sash is often used in emergency situations to troubleshoot and repair systems.
reference:
- https://gtfobins.github.io/gtfobins/sash/
metadata:
verified: true
max-request: 3
tags: code,linux,sash,privesc,local
self-contained: true
code:
- engine:
- sh
- bash
source: |
whoami
- engine:
- sh
- bash
source: |
sash -c 'whoami'
- engine:
- sh
- bash
source: |
sudo sash -c '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
# digest: 4a0a0047304502202f8d07b33937f2a74819aa7b9fdb5e0e91989d7111c4f0aec13c26309ff3a5f20221008e5a2cf46d974a946025433efb5faedd6d0b5b557f207f342460ad09687cb59c:922c64590222798bb761d5b6d8e72950

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "code/privilege-escalation/linux/binary/privesc-sash.yaml"

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