CVE-2025-13948

5.6 MEDIUM

📋 TL;DR

This vulnerability in opsre go-ldap-admin allows attackers to manipulate JWT secret keys, potentially enabling authentication bypass or privilege escalation through hard-coded cryptographic keys. It affects systems running go-ldap-admin up to version 20251011. The attack can be launched remotely but requires significant technical complexity.

💻 Affected Systems

Products:
  • opsre go-ldap-admin
Versions: up to 20251011
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the JWT Handler component in docker-compose.yaml configuration

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise through JWT token forgery, allowing unauthorized administrative access to LDAP management functions and potential data exfiltration.

🟠

Likely Case

Authentication bypass leading to unauthorized access to LDAP administration functions, potentially enabling privilege escalation within the application.

🟢

If Mitigated

Limited impact due to network segmentation and proper JWT key management, with only application-level access possible.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: HIGH

Exploit requires manipulation of JWT secret key arguments and understanding of the application's JWT implementation

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None provided

Restart Required: Yes

Instructions:

1. Check for updated version beyond 20251011
2. Review vendor repositories for security patches
3. Update docker-compose.yaml with secure JWT secret configuration
4. Restart all affected containers

🔧 Temporary Workarounds

Secure JWT Secret Configuration

linux

Replace hard-coded JWT secrets with secure, randomly generated secrets stored in environment variables

export JWT_SECRET=$(openssl rand -base64 32)
Update docker-compose.yaml to use ${JWT_SECRET} instead of hard-coded value

Network Segmentation

linux

Restrict access to go-ldap-admin service to trusted networks only

iptables -A INPUT -p tcp --dport [go-ldap-admin-port] -s [trusted-network] -j ACCEPT
iptables -A INPUT -p tcp --dport [go-ldap-admin-port] -j DROP

🧯 If You Can't Patch

  • Implement strict network access controls to limit exposure
  • Monitor JWT token usage and authentication logs for suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check docker-compose.yaml for hard-coded JWT secrets in the docs/docker-compose/docker-compose.yaml file

Check Version:

docker exec [container-name] go-ldap-admin --version

Verify Fix Applied:

Verify JWT secrets are no longer hard-coded and are using secure environment variables or secrets management

📡 Detection & Monitoring

Log Indicators:

  • Failed JWT validations with unexpected signatures
  • Authentication attempts with modified JWT tokens
  • Unusual administrative access patterns

Network Indicators:

  • Unusual traffic to JWT endpoint
  • Requests with manipulated JWT headers

SIEM Query:

source="go-ldap-admin" AND (event="jwt_validation_failed" OR event="authentication_bypass")

🔗 References

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