Phoenix Studio

Convert indexed Sigma rules into analyst-ready detections.

This studio is built around Phoenix's own rule corpus, not a blank editor. Search by title or rule id, choose a live sigma-cli backend, then reveal pipelines only when you actually need them.

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Indexed Rules

3,707

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Backends

Live from sigconverter.io

CLI Versions

Newest: 2.0.2

Translation Workspace

Shape the rule before it leaves Phoenix

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Active Rule

CVE-2023-4966 Potential Exploitation Attempt - Citrix ADC Sensitive Information Disclosure - Proxy

sigma-cli version

Backend

Format

Target Profile

Splunk

Splunk SPL & tstats data model queries

Format Mode

Default

Plain SPL queries

Conversion Output

CVE-2023-4966 Potential Exploitation Attempt - Citrix ADC Sensitive Information Disclosure - Proxy

Using Splunk · Default · sigma-cli 2.0.2

Translation controls

Adjust the rule on the left, then regenerate when you want a fresh backend-native query.

BackendSplunkFormatDefaultVersion2.0.2

title: CVE-2023-4966 Potential Exploitation Attempt - Citrix ADC Sensitive Information Disclosure - Proxy
id: ff349b81-617f-4af4-924f-dbe8ea9bab41
related:
    - id: 87c83d8e-5390-44ce-aa4a-d3b37e54d0a0 # Webserver Attempt
      type: similar
    - id: aee7681f-b53d-4594-a9de-ac51e6ad3362 # Proxy Exploit
      type: similar
    - id: a4e068b5-e27c-4f21-85b3-e69e5a4f7ce1 # Webserver Exploit
      type: similar
status: test
description: Detects potential exploitation attempt of CVE-2023-4966 a Citrix ADC and NetScaler Gateway sensitive information disclosure vulnerability via proxy logs.
references:
    - https://support.citrix.com/article/CTX579459/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20234966-and-cve20234967
    - https://attackerkb.com/topics/2faW2CxJgQ/cve-2023-4966
    - https://www.rapid7.com/blog/post/2023/10/25/etr-cve-2023-4966-exploitation-of-citrix-netscaler-information-disclosure-vulnerability/
    - https://www.assetnote.io/resources/research/citrix-bleed-leaking-session-tokens-with-cve-2023-4966
    - https://github.com/assetnote/exploits/tree/main/citrix/CVE-2023-4966
author: Nasreddine Bencherchali (Nextron Systems), Michael Haag (STRT)
date: 2023-11-28
tags:
    - attack.initial-access
    - attack.t1190
    - cve.2023-4966
    - detection.emerging-threats
logsource:
    category: proxy
detection:
    selection:
        cs-method: 'GET'
        cs-uri|contains: '/oauth/idp/.well-known/openid-configuration'
        sc-status: 200
    condition: selection
falsepositives:
    - Vulnerability scanners
level: medium

CLI command

Copy the exact command to reproduce this translation locally.

sigma convert --without-pipeline -t splunk -f default rules-emerging-threats/2023/Exploits/CVE-2023-4966/proxy_exploit_cve_2023_4966_citrix_sensitive_information_disclosure_exploit_attempt.yml