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API - BOLA

Description

'42Crunch API protection against BOLA'
Rule type
Scheduled
Version
3.0.1
Declared status
Available
Query frequency
5m
Query period
5m
Trigger
gt 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

let loginRec = FortyTwoCrunchAPIProtection
| where TimeGenerated >= ago(5m) 
| project-away NonBlockingMode, SourcePort, DestinationPort, Query, ApiId, RequestHeader, ResponseHeader, Errors, EventType, Uuid
| where UriPath has "/api/login" and Status == 200;
let ipAddress = toscalar(loginRec
| top 1 by Timestamp desc
| summarize by SourceIp);
let listRec = FortyTwoCrunchAPIProtection
| where TimeGenerated >= ago(5m) 
| project-away NonBlockingMode, SourcePort, DestinationPort, Query, ApiId, RequestHeader, ResponseHeader, Errors, EventType, Uuid
| where UriPath has "/api/accounts/list" and Status == 200;
let listCnt = (toscalar(listRec | count));
let accountRec = FortyTwoCrunchAPIProtection
| where TimeGenerated >= ago(5m) 
| project-away NonBlockingMode, SourcePort, DestinationPort, Query, ApiId, RequestHeader, ResponseHeader, Errors, EventType, Uuid
| where SourceIp == ipAddress and UriPath matches regex "/api/accounts/\\d{6}$";
let accountCnt = (toscalar(accountRec | count));
let recCount = iff((toscalar(listRec | count) == 0) and (accountCnt > 5), accountCnt, 0);
accountRec | take recCount

Declared entities

IPHostAccount

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
1b047dc3-a879-4f99-949b-d1dc867efc83
Additional source files 2Solutions/42Crunch API Protection/Analytic Rules/APIBOLA.yamlsource ↗Solutions/42Crunch API Protection/Data/Solution_42CrunchAPIProtection.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.