CVE-2025-23367

6.5 MEDIUM

📋 TL;DR

This vulnerability allows users with Monitor or Auditor roles in Wildfly Server to suspend or resume the server despite having only read permissions. It affects Wildfly Server deployments using Role Based Access Control (RBAC) provider for management operation authorization. The flaw occurs because Suspend and Resume handlers lack proper authorization checks.

💻 Affected Systems

Products:
  • Wildfly Server
Versions: Specific versions not specified in CVE, but Red Hat advisories indicate affected versions
Operating Systems: All platforms running Wildfly Server
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects deployments using RBAC provider for management operation authorization. Default RBAC configurations with Monitor/Auditor roles are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker with Monitor/Auditor access could disrupt server availability by suspending critical services, causing denial of service and potentially enabling further privilege escalation.

🟠

Likely Case

Authorized users with limited privileges could accidentally or intentionally suspend/resume servers, causing service disruption and violating least privilege principles.

🟢

If Mitigated

With proper network segmentation and monitoring, impact is limited to service disruption within the affected Wildfly instance.

🌐 Internet-Facing: MEDIUM - While exploitation requires authenticated access, internet-facing management interfaces increase attack surface.
🏢 Internal Only: HIGH - Internal users with Monitor/Auditor roles can disrupt critical services, affecting business operations.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW - Requires authenticated user with Monitor/Auditor role

Exploitation requires existing user credentials with Monitor or Auditor role. No special tools needed - standard management interfaces can be used.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Red Hat advisories for specific patched versions

Vendor Advisory: https://access.redhat.com/errata/RHSA-2025:3465

Restart Required: Yes

Instructions:

1. Review Red Hat advisories for applicable patches. 2. Apply security updates via your package manager. 3. Restart Wildfly Server services. 4. Verify authorization checks are now enforced.

🔧 Temporary Workarounds

Restrict Management Interface Access

linux

Limit network access to Wildfly management interfaces to authorized administrators only

firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="TRUSTED_IP" port protocol="tcp" port="9990" accept'
firewall-cmd --reload

Temporary Role Modification

all

Temporarily remove Suspend/Resume permissions from Monitor and Auditor roles

/subsystem=rbac:write-attribute(name=permission-combination-policy, value=rejecting)

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate Wildfly management interfaces
  • Enhance monitoring and alerting for unauthorized suspend/resume operations

🔍 How to Verify

Check if Vulnerable:

Check if users with Monitor/Auditor roles can execute suspend/resume operations via management console or CLI

Check Version:

jboss-cli.sh --version or check Wildfly server logs for version information

Verify Fix Applied:

After patching, verify that Monitor/Auditor role users receive authorization errors when attempting suspend/resume operations

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized suspend/resume operations in Wildfly audit logs
  • Authorization failures for Monitor/Auditor roles attempting management operations

Network Indicators:

  • Management interface traffic from non-admin sources
  • Unexpected suspend/resume API calls

SIEM Query:

source="wildfly" AND (event="suspend" OR event="resume") AND user_role="Monitor" OR user_role="Auditor"

🔗 References

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