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DatacapApplication · Ibm

CVE-2024-39736

CRITICAL · 9.8 CVSS v3.1 Published 2024-07-15
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 Datacap Navigator 9.1.5, 9.1.6, 9.1.7, 9.1.8, and 9.1.9 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking. IBM X-Force ID: 296003.

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 Datacap Navigator versions 9.1.5 through 9.1.9 fails to properly validate/sanitize HTTP HOST header input, allowing attackers to inject arbitrary HTTP headers. This HTTP header injection vulnerability can be chained to achieve cross-site scripting (XSS) via reflected malicious content, cache poisoning of intermediate/proxy caches, and session hijacking through manipulation of session-related headers.

MitigationApply IBM's security patch for this vulnerability when available; in the interim, deploy a WAF with rules to detect and block malicious HOST header values, and implement server-side validation to reject unexpected or injected headers.

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
DatacapApplication
Affected:= 9.1.5= 9.1.6= 9.1.7= 9.1.8= 9.1.9
Datacap NavigatorApplication
Affected:all versions

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
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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. Identify IBM Datacap Navigator installation
    Check for IBM Datacap Navigator installation directories (commonly under C:\Program Files\IBM\DatacapNavigator or /opt/IBM/DatacapNavigator) and running services named 'Datacap Navigator' or similar.
    Affected if IBM Datacap Navigator is installed on the system
  2. Determine installed Datacap Navigator version
    Locate the version information in the installation directory, typically in a version.txt, about.html, or in the application.properties/manifest file. Also check Windows Programs and Features or Linux package manager for the installed version.
    Affected if The installed version matches 9.1.5, 9.1.6, 9.1.7, 9.1.8, or 9.1.9 for IBM Datacap, or any version for IBM Datacap Navigator
  3. Confirm web interface is enabled
    Check if the Datacap Navigator web application is running and accessible. Look for IIS or web application server configurations hosting Datacap Navigator, typically on ports 8080, 8443, or 443. Use netstat or equivalent to identify listening web services.
    Affected if The Datacap Navigator web interface is exposed and accessible over HTTP/HTTPS
  4. Test for HOST header injection
    Send an HTTP request to the Datacap Navigator web interface with a malicious HOST header value (e.g., HOST: example.com\r\nX-Injected-Header: test) and observe if the injected header is reflected in the response or used by the server.
    Affected if The server accepts and reflects arbitrary HOST header values without validation, indicating the vulnerability is present

If IBM Datacap version 9.1.5-9.1.9 or any version of IBM Datacap Navigator is installed with the web interface enabled, the environment is likely affected by this HTTP header injection vulnerability.

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

Apply IBM's security patch for this vulnerability when available; in the interim, deploy a WAF with rules to detect and block malicious HOST header values, and implement server-side validation to reject unexpected or injected headers.

Fix this in Datacap Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2024-39736 in production — separate from our analysis above.

No notes yet

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What this is

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