Detect CVE-2026-6973: Ivanti EPMM Improper Input Validation Exploitation in Elastic Security
Detects exploitation attempts targeting CVE-2026-6973, an improper input validation vulnerability in Ivanti Endpoint Manager Mobile (EPMM). This vulnerability is actively exploited in the wild (CISA KEV) and may allow attackers to bypass authentication or execute unauthorized actions against the EPMM management interface.
MITRE ATT&CK
Elastic Detection Query
sequence by source.ip with maxspan=10m
[network where event.category == "network" and
url.path : ("/mifs/*", "/api/v1/*", "/api/v2/*", "/admin/*") and
http.response.status_code in (400, 422, 500)]
[network where event.category == "network" and
url.path : ("/mifs/*", "/api/v1/*", "/api/v2/*", "/admin/*") and
(
http.response.status_code in (200, 201, 204) or
http.request.body.bytes > 100000
)]EQL sequence detection for CVE-2026-6973 exploitation pattern: identifies a source IP that first triggers input validation errors against Ivanti EPMM endpoints, then achieves a successful response — indicative of iterative payload manipulation.
Data Sources
Required Tables
False Positives & Tuning
- Automated MDM provisioning workflows that retry failed requests and subsequently succeed
- API integration tools with retry logic causing the error-then-success pattern
- Penetration testing activities against the EPMM interface during authorized engagements
Other platforms for CVE-2026-6973
Testing Methodology
Validate this detection against 4 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1CVE-2026-6973 EPMM Input Validation Probe — Null Byte Injection
Expected signal: HTTP 400 or 422 responses from EPMM server for null-byte payloads; web server access log entries with %00 in the URL; WAF alert if WAF is present
- Test 2CVE-2026-6973 EPMM API Endpoint Fuzzing — Oversized Input
Expected signal: HTTP 400 or 500 response; web server log entry with large Content-Length header; potential application error log entry on EPMM server
- Test 3CVE-2026-6973 EPMM Admin API Unauthorized Access Attempt — CRLF Injection
Expected signal: HTTP 400/422 responses; EPMM access log entries with CRLF sequences in headers; potential WAF alert on header injection attempt
- Test 4CVE-2026-6973 Post-Exploitation — EPMM Unauthorized Admin Enumeration
Expected signal: Successful HTTP 200 responses to admin API endpoints (if token is valid); authentication/authorization log entries in EPMM audit log; network flow records showing enumeration pattern
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