CVE-2017-16593
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 delete arbitrary files 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.restore.del_005fdo_jsp servlet, which listens on TCP port 8081 by default. When parsing the filenames parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete any files accessible to the Administrator user. Was ZDI-CAN-5104.
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 confidenceA path traversal vulnerability in the del_005fdo_jsp servlet of NetGain Enterprise Manager allows authenticated attackers to delete arbitrary files by manipulating the filenames parameter. The vulnerability exists because the servlet does not validate user-supplied paths before performing file operations. Although authentication is required, the authentication mechanism itself can be bypassed.
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
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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 NetGain Enterprise Manager serviceScan for processes listening on TCP port 8081 or check for NetGain service/process entries using system commands (netstat, tasklist, or service queries)Affected if Port 8081 is open and responding or NetGain processes are running
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Determine installed versionCheck the NetGain installation directory for version files, or query the application's web interface/API for version information, or inspect installed package metadataAffected if Version is 7.2.730 exactly (the only affected version listed)
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Verify del_005fdo_jsp servlet accessibilitySend an HTTP request to the del_005fdo_jsp endpoint (typically /del_005fdo.jsp or similar path under the application's web root) and confirm it respondsAffected if The servlet endpoint returns an HTTP response (even an error response indicates the servlet is mounted)
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Confirm authentication bypass is possibleAttempt to access the vulnerable endpoint without valid credentials to verify the authentication bypass worksAffected if The endpoint accepts requests without valid authentication tokens or session cookies
The environment is affected if NetGain Enterprise Manager version 7.2.730 is running with the del_005fdo_jsp servlet accessible and the authentication bypass is functional.
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 the vendor patch or update to a patched version of NetGain Enterprise Manager. As a compensating control, restrict network access to TCP port 8081 and ensure the application runs with minimal file system permissions.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-16593 — 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-2017-16593 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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