CVE-2023-40477 Potential Exploitation - WinRAR Application Crash

Detects a crash of "WinRAR.exe" where the version is lower than 6.23. This could indicate potential exploitation of CVE-2023-40477

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Detection logic

selection

Provider_Name: Application Error
EventID: 1000
AppName: WinRAR.exe

filter_main_fixed_version

AppVersion|startswith:
  - 6.23.
  - 6.24.
  - 6.25.
  - 6.26.
  - "7."

Condition

selection and not 1 of filter_main_*

Raw YAML

title: CVE-2023-40477 Potential Exploitation - WinRAR Application Crash
id: e5a29b54-6fe7-4258-8a23-82960e31231a
status: test
description: Detects a crash of "WinRAR.exe" where the version is lower than 6.23. This could indicate potential exploitation of CVE-2023-40477
references:
    - https://wildptr.io/winrar-cve-2023-40477-poc-new-vulnerability-winrar-security-research/
    - https://github.com/wildptr-io/Winrar-CVE-2023-40477-POC
    - https://www.rarlab.com/vuln_rev3_names.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-31
tags:
    - attack.execution
    - cve.2023-40477
    - detection.emerging-threats
logsource:
    product: windows
    service: application
detection:
    selection:
        Provider_Name: 'Application Error'
        EventID: 1000
        AppName: 'WinRAR.exe'
    filter_main_fixed_version:
        # TODO: fix this when the "lt" modifier is implemented for software versions
        AppVersion|startswith:
            - '6.23.'
            - '6.24.'
            - '6.25.'
            - '6.26.'
            - '7.'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Legitimate crash for reasons other than exploitation of the vulnerability
level: medium

False positives

Legitimate crash for reasons other than exploitation of the vulnerability

References

Similar rules

CVE-2023-40477 Potential Exploitation - .REV File Creation

low

windows · Shared tags and logsource