Vpn 3000 Concentrator Series SoftwareOperating system · Cisco
CVE-2002-1099
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 · uneditedCisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, allows remote attackers to obtain potentially sensitive information without authentication by directly accessing certain HTML pages.
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 Cisco VPN 3000 Concentrator versions 2.2.x and 3.x prior to 3.5.3 contains a path traversal or direct object reference vulnerability where certain HTML pages containing potentially sensitive information can be accessed directly by remote attackers without any authentication. This allows information disclosure of system configuration, user data, or internal network details.
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
Vpn 3000 Concentrator Series SoftwareOperating system
= 2.0= 2.5.2.a= 2.5.2.b= 2.5.2.c= 2.5.2.d= 2.5.2.f= 3.0= 3.0\(rel\)= 3.0.3.a= 3.0.3.b= 3.0.4= 3.1
Vpn 3002 Hardware ClientApplication
all versionsCVSS 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.
-
Identify the device modelLocate the hardware label or access the device console and run 'show version' or check the system information page to confirm the model is a Cisco VPN 3000 Concentrator or VPN 3002 Hardware ClientAffected if The device is a Cisco VPN 3000 Concentrator Series or VPN 3002 Hardware Client
-
Check the installed software versionAccess the device management interface or console and run 'show version' to display the software version numberAffected if The version begins with 2.0, 2.5.2, 3.0, 3.0(rel), 3.0.3, 3.0.4, or 3.1, or the device is a VPN 3002 Hardware Client of any version
-
Verify management interface network exposureReview network firewall rules, ACLs, or routing configuration to determine if the device management interface (typically HTTPS/HTTP on port 443/80) is accessible from untrusted networksAffected if The management interface is reachable from networks other than trusted administrative subnets
-
Confirm authentication is enforced on HTML pagesAttempt to access common HTML management paths (such as /CACHE/smtmpng/ or configuration export pages) without providing credentials and observe whether content is returnedAffected if HTML pages containing system configuration, user data, or network details are returned without requiring login credentials
A user is affected if they operate a Cisco VPN 3000 Concentrator on versions 2.0 through 3.1, or any VPN 3002 Hardware Client version, with its management interface exposed to the network and HTML pages accessible without authentication.
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 the Cisco VPN 3000 Concentrator to version 3.5.3 or later to patch the unauthenticated information disclosure vulnerability. If upgrading is not immediately feasible, restrict network access to the management interface via firewall rules or ACLs limiting source IPs.
Fix this in Vpn 3000 Concentrator Series Software
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2002-1099 — 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-2002-1099 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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