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Detection rules › Sigma

Potential Local File Read Vulnerability In JVM Based Application

Status
test
Severity
high
Log source
product jvm, category application
Author
Moti Harmats
Source
github.com/SigmaHQ/sigma

Detects potential local file read vulnerability in JVM based apps. If the exceptions are caused due to user input and contain path traversal payloads then it's a red flag.

MITRE ATT&CK coverage

TacticTechniques
Initial AccessT1190 Exploit Public-Facing Application

Rule body yaml

title: Potential Local File Read Vulnerability In JVM Based Application
id: e032f5bc-4563-4096-ae3b-064bab588685
status: test
description: |
    Detects potential local file read vulnerability in JVM based apps.
    If the exceptions are caused due to user input and contain path traversal payloads then it's a red flag.
references:
    - https://www.wix.engineering/post/threat-and-vulnerability-hunting-with-application-server-error-logs
author: Moti Harmats
date: 2023-02-11
tags:
    - attack.initial-access
    - attack.t1190
logsource:
    category: application
    product: jvm
    definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
    keywords_local_file_read:
        '|all':
            - 'FileNotFoundException'
            - '/../../..'
    condition: keywords_local_file_read
falsepositives:
    - Application bugs
level: high

Stages and Predicates

Stage 0: condition

keywords_local_file_read

Stage 1: keywords_local_file_read

keywords_local_file_read:
    '|all':
        - 'FileNotFoundException'
        - '/../../..'