CVE-2018-7429
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 · uneditedSplunkd in Splunk Enterprise 6.2.x before 6.2.14 6.3.x before 6.3.11, and 6.4.x before 6.4.8; and Splunk Light before 6.5.0 allow remote attackers to cause a denial of service via a malformed HTTP request.
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 · moderate confidenceSplunkd (Splunk's core daemon and web server) in Splunk Enterprise and Splunk Light contains a vulnerability that allows remote attackers to cause a denial of service by sending malformed HTTP requests. The vulnerability is exploitable without authentication over the network via the splunkd web interface.
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< 6.5.0>= 6.2.0, < 6.2.14>= 6.3.0, < 6.3.11>= 6.4.0, < 6.4.8CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 checksWork through these to decide whether this CVE applies to you.
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Identify Splunk installation and versionRun 'splunk --version' or check $SPLUNK_HOME/etc/splunk.version file, or look at the Splunk web interface footer which displays the versionAffected if The installed version falls into any of these ranges: < 6.5.0; >= 6.2.0 and < 6.2.14; >= 6.3.0 and < 6.3.11; >= 6.4.0 and < 6.4.8
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Determine if Splunk Light or EnterpriseCheck the Splunk web interface login page or the splunk.version file for the product type (Enterprise or Light)Affected if The product is Splunk Light version < 6.5.0 or Splunk Enterprise with a version matching the affected ranges above
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Verify splunkd network exposureCheck if port 8089 (default splunkd management port) is listening and accessible from network. Use 'netstat -tlnp | grep 8089' or 'ss -tlnp | grep 8089' on the Splunk server. Assess if the port is bound to 0.0.0.0 or an external interface rather than 127.0.0.1Affected if Port 8089 is exposed to untrusted networks (not restricted to localhost or VPN-only access)
You are affected if Splunk Enterprise or Splunk Light is installed with a version in the ranges < 6.5.0, >= 6.2.0 to < 6.2.14, >= 6.3.0 to < 6.3.11, or >= 6.4.0 to < 6.4.8 AND the splunkd web interface (port 8089) is network-accessible to untrusted parties.
Generated from the published advisory. Verify against your own configuration.
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 data6.2.146.3.116.4.8
Apply vendor-supplied patches: upgrade to Splunk Enterprise 6.2.14, 6.3.11, or 6.4.8 (or later), or Splunk Light 6.5.0 or later. As a temporary control, consider restricting network access to splunkd port (8089) or implementing rate limiting at a network perimeter device.
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- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-7429 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-7429 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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