Describe the behaviour you want to detect. SARA writes a starting Sigma rule with MITRE tags, false-positive guidance, and detection-engineering context. Anonymous, no account, best-effort generic detection.
title: Apache OFBiz CVE-2024-38856 Authentication Bypass via ProgramExport
id: 89a53f79-fa0b-46b1-9761-65364b69c31c
status: experimental
description: |
Detects exploitation attempts of CVE-2024-38856, a CISA KEV-listed authentication bypass
in Apache OFBiz. Attackers use path traversal sequences and the ProgramExport endpoint
to bypass authentication and execute arbitrary code. CVSS 9.8.
references:
- https://nvd.nist.gov/vuln/detail/CVE-2024-38856
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://lists.apache.org/thread/w1q23o9w9oc17nw0x8tjx8m9q9rk7tdd
author: SARA Detection Engineering
date: 2026-08-18
tags:
- attack.t1190
- attack.initial_access
logsource:
category: webserver
detection:
selection_endpoint:
cs-uri-stem|contains|all:
- "ProgramExport"
- "webtools"
selection_traversal:
cs-uri-stem|contains:
- "..;/"
- "..%2f"
- "..%5c"
- "/%3b/"
filter_legitimate:
cs-user-agent|contains:
- "OFBiz"
- "Apache-HttpClient"
condition: selection_endpoint and selection_traversal and not filter_legitimate
fields:
- c-ip
- cs-method
- cs-uri-stem
- cs-user-agent
- sc-status
falsepositives:
- Legitimate administrative access to the OFBiz webtools interface
- Security scanners testing for this vulnerability
level: high
Sigma is the open, vendor-neutral format for log-based detections. One rule, written once, converts to Splunk SPL, Elastic ES|QL, KQL for Microsoft Sentinel, Sumo, Chronicle, QRadar, and more. Detection engineers love it for the same reason ATT&CK is the lingua franca for tactics — Sigma is the lingua franca for the queries that detect them.
You've got a fresh write-up of a TTP and need a starting detection in your stack today. Generate, tune, ship.
Pair-program with SARA: the generator produces the skeleton, the engineer learns by tuning, the team commits the result.
You have a rule in one query language; describe it in English and get the Sigma version + conversions to every other backend.
Sketch a detection idea in 30 seconds before investing in a full DE sprint.
SARA Open ships an OpenAI-compatible API. Call POST /api/v1/sigma — Plain English in, valid Sigma YAML out, with MITRE tags and false-positive guidance.
curl -X POST https://sara-open.sirp.io/api/v1/sigma \
-H "Authorization: Bearer $SARA_API_KEY" \
-H "Content-Type: application/json" \
-d '{"description": "PowerShell encoded command from Office"}'
Read the API reference →