CVE-2017-16596
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 · uneditedThis vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of NetGain Systems Enterprise Manager 7.2.730 build 1034. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the org.apache.jsp.u.jsp.designer.script_005fsamples_jsp servlet, which listens on TCP port 8081 by default. When parsing the type parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of Administrator. Was ZDI-CAN-5119.
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 confidencePath traversal vulnerability in NetGain Enterprise Manager's org.apache.jsp.u.jsp.designer.script_005fsamples_jsp servlet. The type parameter is not validated before use in file operations, allowing authenticated attackers (or those bypassing auth) to read arbitrary files from the filesystem. Default port is 8081.
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= 7.2.730CVSS 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
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/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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Confirm NetGain Enterprise Manager is runningScan for services listening on port 8081, or check running processes for NetGain Enterprise ManagerAffected if Service is running on port 8081 or processes named 'NetGain' are found
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Verify installed version is 7.2.730Check the product version through the web interface (usually in About or System Info page) or by inspecting installed application metadataAffected if Installed version equals 7.2.730 exactly
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Check if vulnerable servlet respondsSend a GET request to /u.jsp/designer/script_samples_jsp with any value for the 'type' parameter (e.g., type=test)Affected if Servlet responds with content (even if error) indicating the endpoint exists and processes the parameter
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Determine if authentication is enforcedAttempt to access the vulnerable endpoint without credentials using a tool like curl: curl http://target:8081/u.jsp/designer/script_samples_jsp?type=../conf/server.xmlAffected if Request succeeds without authentication or returns content that indicates auth can be bypassed
User is affected if NetGain Enterprise Manager version 7.2.730 is running on port 8081 and the /u.jsp/designer/script_samples_jsp endpoint is accessible with the type parameter being processed.
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 dataImplement strict input validation on the type parameter to prevent path traversal sequences (.., /, \). Validate and normalize file paths before use, restrict access to allowed directories, and apply available vendor patches.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.
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Free · runs locallyCheck whether your project pulls in CVE-2017-16596 — 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-2017-16596 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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