CVE-2015-7831
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 · uneditedIn Cloudera Hue, there is privilege escalation by a read-only user when CDH 5.x brefore 5.4.9 is used.
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 confidenceIn Cloudera Hue (web UI for Hadoop), a read-only user can escalate privileges to higher access levels. This authorization bypass allows authenticated users with limited read-only permissions to perform administrative or privileged operations they should not have access to.
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>= 5.0.0, < 5.4.9CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 checksWork through these to decide whether this CVE applies to you.
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Identify installed CDH versionRun 'hadoop version' or check through Cloudera Manager to determine the exact CDH version numberAffected if The version falls within >= 5.0.0 and < 5.4.9
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Confirm Hue component is installedVerify that the Hue web UI for Hadoop is installed and running in the environment, typically managed via Cloudera Manager or via package managementAffected if Hue is present in the CDH installation
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Check Hue authentication backend configurationInspect the Hue configuration file (usually /etc/hue/conf/hue.ini or via Cloudera Manager) to identify the authentication backend in use, particularly if using database-backed permissionsAffected if Hue uses database-level user permissions with read-only roles defined
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Audit existing Hue user rolesReview user accounts in Hue's user database to identify any accounts assigned read-only or limited permissions that could be exploitedAffected if There are users with read-only roles defined in Hue
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Verify privilege escalation is possibleTest whether an authenticated user with read-only permissions can access administrative Hue features (such as user management, configuration changes, or query execution) that should be restrictedAffected if Read-only users can perform administrative or privileged operations they should not have access to
The environment is affected if CDH version is between 5.0.0 and 5.4.9, Hue is installed, and read-only users can perform privileged operations they should not be able to access.
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 data5.4.9
Upgrade CDH to version 5.4.9 or later which contains the patched Hue version to prevent read-only users from escalating privileges.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-7831 — 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-2015-7831 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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