dbcve.org
SplunkApplication

CVE-2022-32155

HIGH · 7.5 CVSS v3.1 Published 2022-06-15
Fix available
A fix is available. Upgrade to 8.2.2106 / 9.0 or later.
See remediation →
84/100
Remediation priority · High
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
In universal forwarder versions before 9.0, management services are available remotely by default. When not required, it introduces a potential exposure, but it is not a vulnerability. If exposed, we recommend each customer assess the potential severity specific to your environment. In 9.0, the universal forwarder now binds the management port to localhost preventing remote logins by default. If management services are not required in versions before 9.0, set disableDefaultPort = true in server.conf OR allowRemoteLogin = never in server.conf OR mgmtHostPort = localhost in web.conf. See Configure universal forwarder management security (https://docs.splunk.com/Documentation/Splunk/9.0.0/Security/EnableTLSCertHostnameValidation#Configure_universal_forwarder_management_security) for more information on disabling the remote management services.

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

Universal Forwarder versions before 9.0 expose management services remotely by default on port 8089, allowing potential unauthorized access to the forwarder's management interface from network-attacked systems. In version 9.0, Splunk changed the default behavior to bind the management port to localhost only, preventing remote logins.

MitigationFor versions before 9.0, set disableDefaultPort=true or allowRemoteLogin=never in server.conf, or configure mgmtHostPort=localhost in web.conf to disable remote management access. Alternatively, upgrade to version 9.0 or later.

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
SplunkApplication
Affected:< 9.0
Splunk Cloud PlatformApplication
Affected:< 8.2.2106

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
None

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

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 Splunk Universal Forwarder version
    Run 'splunk version' or inspect $SPLUNK_HOME/etc/splunk.version to determine the installed version
    Affected if Version is below 9.0 (or below 8.2.2106 for Splunk Cloud Platform)
  2. Verify mgmtHostPort binding in server.conf
    Examine $SPLUNK_HOME/etc/system/local/server.conf for the mgmtHostPort setting under [general] stanza. If absent, the default binds to all interfaces.
    Affected if mgmtHostPort is unset or set to a non-localhost value (e.g., 0.0.0.0:8089) in versions below 9.0
  3. Check for remote login restrictions in server.conf
    Inspect server.conf for disableDefaultPort or allowRemoteLogin settings in the [general] stanza
    Affected if Neither disableDefaultPort=true nor allowRemoteLogin=never is configured, meaning remote access defaults to enabled
  4. Confirm port 8089 network binding
    Run 'netstat -an | grep 8089' or 'ss -tlnp | grep 8089' to see which addresses the management port is listening on
    Affected if Port 8089 is listening on 0.0.0.0:8089 or an external IP address rather than 127.0.0.1:8089 only

A user is affected if their Splunk version is below 9.0 (or 8.2.2106 for Cloud) AND the management port is bound to non-localhost interfaces without explicit restrictions configured.

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.

dbcve · scoped
Upgrade available Upgrade to 8.2.2106 / 9.0 or later
Fixed in 8.2.21069.0
Interim mitigation

For versions before 9.0, set disableDefaultPort=true or allowRemoteLogin=never in server.conf, or configure mgmtHostPort=localhost in web.conf to disable remote management access. Alternatively, upgrade to version 9.0 or later.

Recommended fix High confidence

Splunk Universal Forwarder 9.0

  1. Upgrade Splunk Universal Forwarder to version 9.0 or later, which binds the management port to localhost by default
  2. If upgrading is not immediately possible, apply one of these configuration mitigations in server.conf: add 'disableDefaultPort = true' OR add 'allowRemoteLogin = never'
  3. Alternatively, add 'mgmtHostPort = localhost' in web.conf
  4. After applying configuration changes, restart the Splunk services
Caveat The upgrade to 9.0 changes default behavior - remote management is now disabled by default. Ensure any legitimate remote management needs are accommodated before upgrading.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Splunk Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2022-32155 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2022-32155 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data