CVE-2024-34520
📋 TL;DR
An authorization bypass vulnerability in Mavenir SCE Application Provisioning Portal allows authenticated 'guest' users to perform administrative actions like adding users by bypassing client-side access controls. This affects organizations using the vulnerable version of the portal, potentially compromising user management and system integrity.
💻 Affected Systems
- Mavenir SCE Application Provisioning Portal
⚠️ 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
An attacker with guest credentials could create administrative accounts, modify system configurations, or escalate privileges to gain full control over the provisioning portal, leading to data breaches or service disruption.
Likely Case
Unauthorized users gain administrative access to user management functions, allowing them to create, modify, or delete user accounts, potentially leading to privilege escalation or unauthorized system changes.
If Mitigated
With proper server-side authorization controls, guest users would be restricted to intended functions only, preventing unauthorized administrative actions.
🎯 Exploit Status
Exploitation requires authenticated guest access and knowledge of bypass techniques; no public exploit code is available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references; check vendor advisory for updated version.
Vendor Advisory: Not provided in references; contact Mavenir for official advisory.
Restart Required: No
Instructions:
1. Contact Mavenir for the latest patch or updated version. 2. Apply the patch as per vendor instructions. 3. Verify that server-side authorization controls are enforced.
🔧 Temporary Workarounds
Disable Guest Access
allTemporarily disable or restrict guest user accounts to prevent exploitation until patching.
Configure portal settings to disable guest authentication or limit permissions.
Implement Server-Side Authorization
allEnforce authorization checks on the server side to complement client-side controls.
Review and update server-side code to validate user permissions for all administrative actions.
🧯 If You Can't Patch
- Monitor and audit user activities, especially guest accounts, for unauthorized administrative actions.
- Isolate the portal from critical networks and implement network segmentation to limit potential damage.
🔍 How to Verify
Check if Vulnerable:
Test if a guest user can access administrative features like 'add user' by attempting to bypass client-side controls; review portal version.Check Version:
Check portal interface or configuration files for version PORTAL-LBS-R_1_0_24_0.Verify Fix Applied:
After patching, verify that guest users cannot perform administrative actions and that server-side authorization is enforced.📡 Detection & Monitoring
Log Indicators:
- Log entries showing guest users accessing administrative endpoints or performing user management actions.
Network Indicators:
- Unusual HTTP requests from guest accounts to administrative API endpoints.
SIEM Query:
source="portal_logs" user_role="guest" AND action IN ("add_user", "modify_user", "delete_user")