Tivoli Workload SchedulerApplication · Ibm

CVE-2022-38389

CRITICAL · 9.1 CVSS v3.1 Published 2023-02-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
IBM Tivoli Workload Scheduler 9.4, 9.5, and 10.1 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 233975.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

IBM Tivoli Workload Scheduler versions 9.4, 9.5, and 10.1 contains an XML External Entity Injection (XXE) vulnerability where the application parses XML input without properly disabling external entity processing. A remote attacker can exploit this by submitting malicious XML payloads to read sensitive local files or trigger resource exhaustion via recursive entity expansion (e.g., billion laughs attack), leading to information disclosure or denial of service.

MitigationDisable external entity processing and DTD processing in all XML parsers used by the application, implement strict input validation for XML endpoints, and apply vendor patches when available. Use secure XML parser configurations with features like XMLConstants.ACCESS_EXTERNAL_DTD and XMLConstants.ACCESS_EXTERNAL_SCHEMA set to empty strings.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Tivoli Workload SchedulerApplication
Affected:= 9.4= 9.5= 10.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check installed IBM Tivoli Workload Scheduler version
    Locate the installation directory and run version command or check version file: typically found in the product's bin or conf directory, or via the twsinstcp -version command if available
    Affected if The installed version equals 9.4, 9.5, or 10.1 exactly as listed in the affected versions
  2. Identify XML input acceptance points
    Review application configuration files and exposed web services/endpoints that accept XML input, check for SOAP or XML-based API endpoints
    Affected if The application accepts XML input through any publicly accessible endpoint without restriction
  3. Inspect XML parser configuration for external entity settings
    Examine the XML parser configuration files or Java startup parameters for settings related to external entity processing - look for whether XMLConstants.ACCESS_EXTERNAL_DTD and XMLConstants.ACCESS_EXTERNAL_SCHEMA are set to empty strings or properly restricted
    Affected if External entity processing and DTD processing are not explicitly disabled in the XML parser configuration, or the security features are not set to restrict external access
  4. Verify if XML processing is enabled on production endpoints
    Test XML endpoints by sending a benign XML request and confirming it is processed, note which specific endpoints handle XML data
    Affected if XML processing is active on any production-accessible endpoint without documented security controls

A user is affected if their installed IBM Tivoli Workload Scheduler version is exactly 9.4, 9.5, or 10.1 AND the application exposes any XML input endpoint where external entity processing has not been explicitly disabled in the parser configuration.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Disable external entity processing and DTD processing in all XML parsers used by the application, implement strict input validation for XML endpoints, and apply vendor patches when available. Use secure XML parser configurations with features like XMLConstants.ACCESS_EXTERNAL_DTD and XMLConstants.ACCESS_EXTERNAL_SCHEMA set to empty strings.

Fix this in Tivoli Workload Scheduler Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-38389 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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