Detection rules › Sigma
CVE-2023-1389 Potential Exploitation Attempt - Unauthenticated Command Injection In TP-Link Archer AX21
Detects potential exploitation attempt of CVE-2023-1389 an Unauthenticated Command Injection in TP-Link Archer AX21.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Initial Access | T1190 Exploit Public-Facing Application |
Rule body yaml
title: CVE-2023-1389 Potential Exploitation Attempt - Unauthenticated Command Injection In TP-Link Archer AX21
id: 6c7defa9-69f8-4c34-b815-41fce3931754
status: test
description: |
Detects potential exploitation attempt of CVE-2023-1389 an Unauthenticated Command Injection in TP-Link Archer AX21.
references:
- https://www.tenable.com/security/research/tra-2023-11
- https://github.com/Voyag3r-Security/CVE-2023-1389/blob/4ecada7335b17bf543c0e33b2c9fb6b6215c09ae/archer-rev-shell.py
- https://www.zerodayinitiative.com/blog/2023/4/21/tp-link-wan-side-vulnerability-cve-2023-1389-added-to-the-mirai-botnet-arsenal
author: Nasreddine Bencherchali (Nextron Systems), Rohit Jain
date: 2024-06-25
tags:
- attack.initial-access
- attack.t1190
- cve.2023-1389
- detection.emerging-threats
logsource:
category: proxy
detection:
selection_uri:
cs-method:
- 'GET'
- 'POST'
cs-uri|contains|all:
- '/cgi-bin/luci/;stok=/locale'
- 'form=country'
selection_keyword:
- 'operation=write'
- 'country=$('
condition: all of selection_*
falsepositives:
- Vulnerability Scanners
level: medium
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_uri
selection_uri:
cs-method:
- 'GET'
- 'POST'
cs-uri|contains|all:
- '/cgi-bin/luci/;stok=/locale'
- 'form=country'
Stage 2: selection_keyword
selection_keyword:
- 'operation=write'
- 'country=$('
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.