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Detection rules › Sigma

CVE-2024-1212 Exploitation - Progress Kemp LoadMaster Unauthenticated Command Injection

Status
test
Severity
high
Log source
category webserver
Author
Nasreddine Bencherchali (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects potential exploitation of CVE-2024-1709 an unauthenticated command injection in Progress Kemp LoadMaster. It looks for GET requests to '/access/set' API with the parameters 'param=enableapi' and 'value=1' as well as an "Authorization" header with a base64 encoded value with an uncommon character.

MITRE ATT&CK coverage

TacticTechniques
Initial AccessNo specific technique

Rule body yaml

title: CVE-2024-1212 Exploitation - Progress Kemp LoadMaster Unauthenticated Command Injection
id: eafb8bd5-7605-4bfe-a9ec-0442bc151f15
status: test
description: |
    Detects potential exploitation of CVE-2024-1709 an unauthenticated command injection in Progress Kemp LoadMaster.
    It looks for GET requests to '/access/set' API with the parameters 'param=enableapi' and 'value=1' as well as an "Authorization" header with a base64 encoded value with an uncommon character.
references:
    - https://github.com/RhinoSecurityLabs/CVEs/blob/15cf4d86c83daa57b59eaa2542a0ed47ad3dc32d/CVE-2024-1212/CVE-2024-1212.py
    - https://rhinosecuritylabs.com/research/cve-2024-1212unauthenticated-command-injection-in-progress-kemp-loadmaster/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-03-20
tags:
    - attack.initial-access
    - cve.2024-1212
    - detection.emerging-threats
logsource:
    category: webserver
detection:
    selection_path:
        cs-method: 'GET'
        cs-uri-stem|contains|all:
            - '/access/set'
            - 'param=enableapi'
            - 'value=1'
    selection_keywords:
        - 'Basic Jz'
        - 'Basic c7'
        - 'Basic nO'
        - "Basic ';"
    condition: all of selection_*
falsepositives:
    - Unlikely
level: high

Stages and Predicates

Stage 0: condition

all of selection_*

Stage 1: selection_path

selection_path:
    cs-method: 'GET'
    cs-uri-stem|contains|all:
        - '/access/set'
        - 'param=enableapi'
        - 'value=1'

Stage 2: selection_keywords

selection_keywords:
    - 'Basic Jz'
    - 'Basic c7'
    - 'Basic nO'
    - "Basic ';"

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.

FieldKindValues
cs-methodeq
  • GET
cs-uri-stemmatch
  • /access/set
  • param=enableapi
  • value=1