CVE-2001-1355
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 · uneditedBuffer overflows in NetWin Authentication Module (NWAuth) 3.0b and earlier, as implemented in DMail, SurgeFTP, and possibly other packages, could allow attackers to execute arbitrary code via long arguments to (1) the -del command or (2) the -lookup command.
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 confidenceBuffer overflow vulnerabilities in NetWin Authentication Module (NWAuth) versions 3.0b and earlier allow remote attackers to execute arbitrary code by supplying excessively long arguments to the -del and -lookup command parameters. This affects DMail, SurgeFTP, and potentially other NetWin products that incorporate the vulnerable NWAuth module.
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= 2.5d= 2.7= 2.7q= 2.7r= 2.8e= 2.8f= 2.8g= 2.8h= 2.8i= 1.0b= 2.0a= 2.0bCVSS 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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/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 installed NetWin productsCheck for DMail or SurgeFTP installations on the system. Look for executables or services named 'dmail', 'surgeftp', or 'nwauth' in common installation directories such as /usr/local/bin, /usr/sbin, or the program's default installation path.Affected if Either DMail or SurgeFTP is installed on the system
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Determine installed software versionRun the installed product with a version flag (common flags include -v, -version, or checking the binary directly). For DMail, check the version banner at startup. For SurgeFTP, use 'surgeftp -v' or check the version information in the administration interface.Affected if The installed version matches or is earlier than the affected versions (Dmail: 2.5d through 2.8i, Surgeftp: 1.0b through 2.0b)
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Locate NWAuth moduleSearch for the NWAuth executable or library file on the system. It may be present as 'nwauth', 'NWAuth', or part of the DMail/SurgeFTP installation directory. Check process list for any running nwauth daemon or service.Affected if The NWAuth module (version 3.0b or earlier) is present on the system
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Verify command interface exposureDetermine if the command-line interface accepting -del and -lookup parameters is accessible. This typically involves NWAuth being run as a daemon or being invoked by the parent NetWin product. Check configuration files or documentation for how NWAuth is invoked.Affected if NWAuth is running and exposes the -del or -lookup command parameters to external input
A system is affected if it runs any version of NetWin DMail (2.5d through 2.8i) or SurgeFTP (1.0b through 2.0b) with the NWAuth module (version 3.0b or earlier) that exposes the -del or -lookup command interface.
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 NWAuth to a version newer than 3.0b, or apply vendor-provided patches. If no patch is available, disable or restrict access to the affected command-line interfaces and consider network segmentation to limit exposure.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2001-1355 — 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-2001-1355 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
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