CVE-2011-3694
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 · uneditedThe Server Administration Console in NetSaro Enterprise Messenger Server 2.0 allows remote attackers to read application source code by appending a %00 character to a URL.
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 confidenceThe Server Administration Console in NetSaro Enterprise Messenger Server 2.0 contains a path traversal vulnerability via null byte injection. By appending %00 to a URL, remote attackers can bypass file extension checks and read application source code files that should not be publicly accessible.
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= 2.0CVSS 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
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/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 NetSaro Enterprise Messenger Server installationLocate the installation directory or check installed programs for 'NetSaro Enterprise Messenger Server' and confirm the exact version number (2.0)Affected if Version is 2.0 exactly and the Server Administration Console web interface is accessible on the network or internet
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Locate the Server Administration ConsoleCheck for web service running on common ports (e.g., 80, 443, 8080) or search for 'admin', 'console', or 'netsaro' in URL pathsAffected if The Server Administration Console is accessible via HTTP/HTTPS
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Test for null byte injection vulnerabilityAttempt to access a file outside the web root using null byte injection (e.g., append %00 to a filename in the URL, such as /page.aspx%00.txt)Affected if The server returns source code files or files outside the intended web root when %00 is appended to the request
User is affected if NetSaro Enterprise Messenger Server version 2.0 is installed AND the Server Administration Console is accessible AND null byte injection allows reading files outside the web root.
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 to reject null byte characters (%00) in URL parameters, and configure the web server to prevent access to application source code files outside the intended web root.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-3694 — 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-2011-3694 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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