CVE-2025-25231: Workspace ONE UEM Path Traversal Flaw

CVE-2025-25231 Overview

CVE-2025-25231 is a secondary context path traversal vulnerability in Omnissa Workspace ONE Unified Endpoint Management (UEM). A remote, unauthenticated attacker can send crafted read-only GET requests to restricted API endpoints and retrieve sensitive information. The flaw is classified under CWE-22, Improper Limitation of a Pathname to a Restricted Directory.

The vulnerability is exploitable over the network without privileges or user interaction. EPSS data places this issue in the 88th percentile, indicating elevated exploitation likelihood relative to other CVEs.

Critical Impact

Unauthenticated attackers can read sensitive data from API endpoints intended to be restricted, exposing configuration data, identity attributes, and managed device information.

Affected Products

• Omnissa Workspace ONE UEM
• Refer to Omnissa Security Advisory OMSA-2025-0004 for affected versions
• Refer to the Omnissa Security Response page for the current product support matrix

Discovery Timeline

• 2025-08-11 - CVE-2025-25231 published to the National Vulnerability Database
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-25231

Vulnerability Analysis

The vulnerability resides in the request routing layer of Workspace ONE UEM, where secondary context paths are evaluated after an initial authentication or access control check. An attacker crafts URLs that pass the outer security boundary while resolving internally to a different, restricted API resource. The application then services the request using the inner context, bypassing the access control applied at the outer boundary.

Because the impacted endpoints are read-only GET operations, the attacker cannot directly modify state. However, the disclosed data can include device inventory, user attributes, organization group metadata, or configuration values, all of which support follow-on attacks against the managed estate.

Root Cause

The root cause is inconsistent normalization and authorization between two layers of URL handling. The outer routing layer trusts the request path as presented, while the inner servlet or controller resolves the resource using a different parsed form of the path. This dual-context handling, combined with insufficient path canonicalization, allows traversal sequences to slip past the access control filter [CWE-22].

Attack Vector

Exploitation requires only network reachability to the Workspace ONE UEM management interface. The attacker issues a specially crafted HTTP GET request whose URL contains a secondary path segment that resolves to a restricted API endpoint after server-side rewriting. No credentials, tokens, or user interaction are needed.

No public proof-of-concept has been published. Technical details and impacted builds are described in Omnissa Security Advisory OMSA-2025-0004.

Detection Methods for CVE-2025-25231

Indicators of Compromise

• HTTP GET requests to Workspace ONE UEM management URLs containing encoded traversal sequences such as %2e%2e, ..;/, or duplicated path segments
• Access log entries showing successful 200 responses on API paths that should require authentication
• Unusual unauthenticated requests originating from external IP addresses to internal API routes
• Spikes in GET traffic targeting /API/ paths from a single source

Detection Strategies

• Inspect Workspace ONE UEM and upstream reverse proxy access logs for path traversal patterns and double-encoded characters
• Correlate requests that bypass authentication filters with subsequent API responses larger than expected for unauthenticated endpoints
• Deploy web application firewall signatures targeting secondary context path traversal patterns described in OMSA-2025-0004

Monitoring Recommendations

• Forward UEM application, IIS, and load balancer logs to a centralized analytics platform for retention and search
• Alert on unauthenticated access to API routes that historically required a bearer token or session cookie
• Baseline normal API request patterns and flag deviations in URL structure, request volume, or response size

How to Mitigate CVE-2025-25231

Immediate Actions Required

• Apply the fixed Workspace ONE UEM build listed in OMSA-2025-0004 as soon as change windows permit
• Restrict network exposure of the UEM management interface to trusted administrative networks and VPN segments
• Review access logs for the preceding 90 days for the indicators described above
• Rotate any API keys, tokens, or credentials that may have been exposed through the affected endpoints

Patch Information

Omnissa has released fixed versions of Workspace ONE UEM addressing CVE-2025-25231. Customers should consult Omnissa Security Advisory OMSA-2025-0004 for the patched build numbers applicable to their deployment and follow the standard upgrade procedure documented on the Omnissa Security Response page.

Workarounds

• Place a hardened reverse proxy or web application firewall in front of the UEM console to normalize URLs and block traversal sequences before they reach the application
• Apply network access control lists restricting inbound GET requests to the management API from non-administrative sources
• Enable detailed HTTP access logging on all front-end components to retain forensic evidence until the patch is deployed