CVE-2016-6500
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 · uneditedUnspecified methods in the RACF Connector component before 1.1.1.0 in ForgeRock OpenIDM and OpenICF improperly call the SearchControls constructor with returnObjFlag set to true, which allows remote attackers to execute arbitrary code via a crafted serialized Java object, aka LDAP entry poisoning.
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 confidenceThe RACF Connector component in ForgeRock OpenIDM and OpenICF before version 1.1.1.0 improperly calls the SearchControls constructor with returnObjFlag set to true. This allows the LDAP provider to return deserialized Java objects from LDAP entries, enabling remote attackers to inject malicious serialized objects into LDAP responses (LDAP entry poisoning) and achieve arbitrary code execution.
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<= 1.1.0.0CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/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 checksWork through these to decide whether this CVE applies to you.
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Locate the RACF Connector installationSearch for JAR files named 'racf-connector' or 'forgerock-racf-connector' in the OpenIDM or OpenICF installation directory, typically under 'connectors/' or 'lib/' directories. Use command: find /path/to/openidm -name '*racf*connector*.jar' (Linux) or search in the installation folder (Windows).Affected if The connector JAR file is found with version 1.1.0.0 or earlier in the filename or manifest.
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Determine the connector versionExtract the version from the JAR filename, or inspect the JAR manifest file (META-INF/MANIFEST.MF) inside the connector JAR. You can use: unzip -p connector.jar META-INF/MANIFEST.MF | grep -i versionAffected if Version is 1.1.0.0 or lower, or no version is displayed indicating an unpatched build.
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Identify LDAP configuration used by the connectorLook for connector configuration files in the OpenIDM/conf/ or OpenICF directory, typically named 'connectors/*.json' or 'provisioner.openicf-*.json' that reference the RACF connector. Search for files containing 'racf' or 'RACF' in the name or configuration.Affected if A connector configuration file exists and references the RACF connector with LDAP settings.
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Check for vulnerable SearchControls usage in connector codeDecompile or inspect the connector JAR for Java source code or bytecode containing 'SearchControls' and 'returnObjFlag'. Look for code patterns like 'new SearchControls()' followed by '.setReturnObjFlag(true)' or constructor calls passing 'true' as a parameter. Use: jar tf connector.jar | grep -i 'SearchControls'Affected if The connector code contains SearchControls with returnObjFlag explicitly set to true, or the SearchControls constructor is called without disabling object return.
You are affected if the RACF Connector is installed with version 1.1.0.0 or earlier, and the connector code uses SearchControls with returnObjFlag enabled for LDAP operations.
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 dataUpgrade the RACF Connector component to version 1.1.1.0 or later, which sets returnObjFlag to false to prevent deserialization of untrusted LDAP objects.
- Consultation3.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-6500 — 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-2016-6500 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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- Version or environment caveats, and links to real fixes
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