CVE-2016-3127
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 · uneditedAn information disclosure vulnerability in the logging implementation of BlackBerry Good Control Server versions earlier than 2.3.53.62 allows remote attackers to gain and use logged encryption keys to access certain resources within a customer's Good deployment by gaining access to certain diagnostic log files through either a valid logon or an unrelated compromise of the server.
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 confidenceBlackBerry Good Control Server versions before 2.3.53.62 contain an information disclosure vulnerability where encryption keys are written to diagnostic log files. Remote attackers with log file access (via valid credentials or server compromise) can retrieve these keys and use them to authenticate to and access resources within the customer's Good deployment.
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<= 2.2.511.26CVSS 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:3.0/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 checksWork through these to decide whether this CVE applies to you.
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Identify BlackBerry Good Control Server versionDetermine the installed version of BlackBerry Good Control Server. Check the server's web interface, about page, installation directory, or service information where the version is displayed.Affected if The installed version is 2.2.511.26 or lower
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Locate diagnostic log filesFind diagnostic log files on the server system. These are typically stored in a logs directory within the BlackBerry Good Control Server installation path.Affected if Diagnostic log files exist on the server file system
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Search log files for encryption key contentOpen and inspect the diagnostic log files for any instances of encryption keys, cryptographic keys, or key-related data. Look for hexadecimal strings, certificate data, or key identifiers that should not be present in logs.Affected if Encryption keys or cryptographic material are written to and visible in the diagnostic log files
A server is affected if it runs BlackBerry Good Control Server version 2.2.511.26 or lower and diagnostic logging is enabled, allowing encryption keys to be exposed in log files.
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 BlackBerry Good Control Server to version 2.3.53.62 or later, which removes encryption keys from diagnostic logging. Additionally, restrict access to diagnostic log files and monitor for unauthorized access.
- Consultation4.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-3127 — 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-2016-3127 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
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data