Detect Omnissa Workspace ONE UEM Server-Side Request Forgery (CVE-2021-22054) in IBM QRadar
Detects exploitation of CVE-2021-22054, a Server-Side Request Forgery (SSRF) vulnerability in Omnissa (formerly VMware) Workspace ONE UEM. An unauthenticated attacker can send crafted HTTP requests to the UEM server, causing it to make arbitrary outbound HTTP/HTTPS requests to internal or external resources. This can be leveraged to scan internal networks, access cloud metadata services (e.g., AWS IMDS), or pivot to internal services not directly reachable by the attacker. The vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
MITRE ATT&CK
QRadar Detection Query
SELECT
DATEFORMAT(devicetime, 'yyyy-MM-dd HH:mm:ss') AS event_time,
sourceip,
destinationip,
destinationport,
URL,
username,
'CVE-2021-22054' AS cve,
'high' AS alert_severity,
QIDNAME(qid) AS event_name,
logsourcename(logSourceId) AS log_source
FROM events
WHERE LOGSOURCETYPENAME(devicetype) IN ('Microsoft IIS', 'Apache HTTP Server', 'VMware Workspace ONE')
AND (
URL ILIKE '%169.254.169.254%'
OR URL ILIKE '%metadata.google.internal%'
OR URL ILIKE '%127.0.0.1%'
OR URL ILIKE '%localhost%'
OR URL ILIKE '%::1%'
OR (URL ILIKE '%/DeviceManagement/%' AND URL ILIKE '%url=%')
OR (URL ILIKE '%/AirWatch/%' AND URL ILIKE '%redirect=%')
)
AND LAST 60 MINUTES
ORDER BY devicetime DESCAQL query for QRadar to surface HTTP requests hitting Workspace ONE UEM endpoints with SSRF payloads targeting internal metadata services or loopback addresses in the past 60 minutes.
Data Sources
Required Tables
False Positives & Tuning
- Internal proxy or load balancer health checks appearing as metadata IP requests
- Authorized red team exercises targeting the UEM server
- Misconfigured URL redirect parameters in legitimate UEM workflows
- Security scanning tools injecting SSRF payloads during vulnerability assessments
Other platforms for CVE-2021-22054
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 1SSRF via Workspace ONE UEM Unauthenticated Endpoint to IMDS
Expected signal: IIS access log entry for /DeviceManagement/enrollment with url= parameter containing 169.254.169.254; outbound network connection from UEM server to 169.254.169.254:80
- Test 2SSRF Internal Network Port Scan via Workspace ONE UEM
Expected signal: Multiple IIS log entries within seconds for /AirWatch/ paths with url= parameters containing RFC1918 addresses on varying ports; timing differences in responses reveal open vs closed ports
- Test 3SSRF to Internal Administrative Interface via Redirect Parameter
Expected signal: IIS log entry with redirect= parameter pointing to internal host; potential Windows Defender firewall log showing outbound connection from UEM process to internal admin host; Sysmon Event ID 3 network connection from IIS worker process (w3wp.exe) to internal IP
- Test 4SSRF File URI Scheme Attempt for Local File Read
Expected signal: IIS log entry with file:// URI in URL parameter; absence of outbound network connection (file read is local); potential application error log entries if file:// is rejected by URL validation
Unlock Pro Content
Get the full detection package for CVE-2021-22054 including response playbook, investigation guide, and atomic red team tests.