CVE-2015-6857
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 vulnerability in Virtual Table Server (VTS) in HP LoadRunner 11.52, 12.00, 12.01, 12.02, and 12.50 allows remote attackers to execute arbitrary code via unknown vectors, aka ZDI-CAN-3138.
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 confidenceHP LoadRunner Virtual Table Server (VTS) contains an unspecified vulnerability allowing remote unauthenticated attackers to execute arbitrary code. The VTS component exposes network services that lack proper input validation or access controls, enabling remote code execution without any authentication credentials. This affects LoadRunner versions 11.52 through 12.50.
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= 11.52= 12.00= 12.01= 12.02= 12.50= 11.52= 12.00= 12.01= 12.20= 12.50CVSS 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
- Local
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:L/AC:L/Au:N/C:C/I:C/A:C
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 if HP LoadRunner or Performance Center is installedCheck for installation directories such as C:\Program Files\HP\LoadRunner or C:\HP\Performance Center on Windows, or /opt/hp/LoadRunner on Linux. Also check Add/Remove Programs or system inventory tools for HP LoadRunner or HP Performance Center.Affected if HP LoadRunner or HP Performance Center software is found on the system.
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Determine the installed version of LoadRunner or Performance CenterLocate the version information in the installation directory, typically in a version.txt or about dialog, or check the registry key HKEY_LOCAL_MACHINE\SOFTWARE\HP\LoadRunner\Version on Windows. Compare the installed version to the affected versions: 11.52, 12.00, 12.01, 12.02, 12.50 for LoadRunner and 11.52, 12.00, 12.01, 12.20, 12.50 for Performance Center.Affected if The installed version matches exactly one of the affected versions listed in the CVE.
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Check if the Virtual Table Server (VTS) component is runningLook for the VTS executable (vts.exe or vts) in the LoadRunner installation directory, typically under bin or vts folder. Use Task Manager or command 'tasklist | findstr vts' on Windows, or 'ps aux | grep vts' on Linux to check if VTS process is active.Affected if The VTS executable is running as a process on the system.
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Identify open network ports associated with VTSRun 'netstat -an | findstr 8888' or use a port scanner to check for listening ports in the 8888-8890 range which are default VTS ports. Check the VTS configuration file (vts.cfg or vts.ini) in the vts\config folder for the configured port.Affected if VTS is listening on any network port and accepting remote connections.
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Verify network accessibility of VTS portsUse 'telnet <localhost> <port>' or 'Test-NetConnection -Port <port>' from external hosts to confirm VTS ports are reachable from network. Check firewall rules with 'netsh firewall show all' on Windows or iptables -L on Linux.Affected if VTS ports are accessible from network hosts without authentication requirements.
A system is affected if it runs HP LoadRunner version 11.52, 12.00, 12.01, 12.02, or 12.50 (or HP Performance Center 11.52, 12.00, 12.01, 12.20, or 12.50) with the VTS component actively running and exposing network services to unauthenticated remote 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 dataApply HP patches as they become available. If patches are unavailable, restrict network access to VTS ports via firewall rules or disable the VTS component if not required for testing operations.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-6857 — 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-2015-6857 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
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