CVE-2025-13686

6.3 MEDIUM

📋 TL;DR

This vulnerability allows authenticated users to execute arbitrary commands on IBM DataStage systems due to improper input validation in the job subroutine component. Attackers with normal user credentials can run commands with the privileges of the DataStage process. Affects IBM DataStage on Cloud Pak for Data versions 5.1.2 through 5.3.0.

💻 Affected Systems

Products:
  • IBM DataStage on Cloud Pak for Data
Versions: 5.1.2 through 5.3.0
Operating Systems: Linux (typically RHEL/CentOS)
Default Config Vulnerable: ⚠️ Yes
Notes: Requires DataStage job subroutine component access; all deployments with affected versions are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise leading to data exfiltration, lateral movement, or ransomware deployment if DataStage runs with elevated privileges.

🟠

Likely Case

Unauthorized command execution allowing data access, privilege escalation, or persistence mechanisms.

🟢

If Mitigated

Limited impact if proper network segmentation, least privilege, and input validation controls are implemented.

🌐 Internet-Facing: MEDIUM - While authentication is required, exposed interfaces could be targeted by credential stuffing or phishing.
🏢 Internal Only: HIGH - Authenticated internal users or compromised accounts can exploit this for lateral movement.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access but is straightforward once credentials are obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.3.1 or later

Vendor Advisory: https://www.ibm.com/support/pages/node/7262347

Restart Required: Yes

Instructions:

1. Upgrade to IBM DataStage on Cloud Pak for Data 5.3.1 or later. 2. Apply the fix through the Cloud Pak for Data web console or CLI. 3. Restart DataStage services.

🔧 Temporary Workarounds

Restrict Job Subroutine Access

all

Limit user access to job subroutine components through role-based access controls.

Network Segmentation

all

Isolate DataStage systems from sensitive networks and implement strict firewall rules.

🧯 If You Can't Patch

  • Implement strict access controls and monitor for unusual job subroutine activity.
  • Deploy application-level input validation and command filtering for job subroutines.

🔍 How to Verify

Check if Vulnerable:

Check Cloud Pak for Data version via web console or 'oc get csv' command in OpenShift.

Check Version:

oc get csv | grep datastage

Verify Fix Applied:

Confirm version is 5.3.1 or later and test job subroutine input validation.

📡 Detection & Monitoring

Log Indicators:

  • Unusual job subroutine executions
  • Command execution patterns in DataStage logs
  • Authentication from unexpected sources

Network Indicators:

  • Unexpected outbound connections from DataStage servers
  • Command and control traffic patterns

SIEM Query:

source="datastage" AND (event="subroutine_execution" OR cmd=*)

🔗 References

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