CVE-2025-25236
📋 TL;DR
Omnissa Workspace ONE UEM has an observable response discrepancy vulnerability that allows attackers to enumerate sensitive information like tenant IDs and user accounts. This information disclosure could facilitate brute-force, password-spraying, or credential-stuffing attacks. Organizations using vulnerable versions of Workspace ONE UEM are affected.
💻 Affected Systems
- Omnissa Workspace ONE UEM
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could enumerate all user accounts and tenant IDs, enabling targeted credential attacks that could lead to full system compromise and data exfiltration.
Likely Case
Attackers gather partial user/tenant information to conduct more efficient credential attacks, potentially gaining unauthorized access to some accounts.
If Mitigated
With proper authentication controls and monitoring, impact is limited to information disclosure without direct system access.
🎯 Exploit Status
Vulnerability involves observable response discrepancies that can be exploited without authentication using simple enumeration techniques
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://www.omnissa.com/omnissa-security-response/
Restart Required: Yes
Instructions:
1. Review vendor advisory OMSA-2025-0005
2. Identify affected version
3. Apply recommended patch/update
4. Restart affected services
5. Verify fix implementation
🔧 Temporary Workarounds
Network Access Restrictions
allRestrict access to Workspace ONE UEM interfaces to trusted networks only
Rate Limiting
allImplement rate limiting on authentication endpoints to prevent enumeration attacks
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to Workspace ONE UEM
- Enable enhanced authentication monitoring and alerting for suspicious enumeration patterns
🔍 How to Verify
Check if Vulnerable:
Test for observable response discrepancies in authentication/tenant endpoints; consult vendor advisory for specific testing methodologyCheck Version:
Check Workspace ONE UEM admin console or documentation for version informationVerify Fix Applied:
Verify patch version is installed and test that enumeration no longer reveals sensitive information through response discrepancies📡 Detection & Monitoring
Log Indicators:
- Unusual patterns of authentication attempts
- Multiple failed login attempts from single sources
- Requests to enumerate user/tenant endpoints
Network Indicators:
- High volume of requests to authentication endpoints
- Patterns of sequential user/tenant ID requests
SIEM Query:
source="workspace_one_uem" AND (event_type="authentication" OR endpoint="*/users*" OR endpoint="*/tenants*") | stats count by src_ip, user_agent