Secure Access Control ServerApplication · Cisco
CVE-2006-3226
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 Secure Access Control Server (ACS) 4.x for Windows uses the client's IP address and the server's port number to grant access to an HTTP server port for an administration session, which allows remote attackers to bypass authentication via various methods, aka "ACS Weak Session Management Vulnerability."
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 · moderate confidenceCisco Secure ACS 4.x for Windows uses a weak session management mechanism that relies solely on the client's IP address and the server's port number to authenticate administrative HTTP sessions. This allows remote attackers to spoof or hijack sessions by manipulating source IP addresses, effectively bypassing the authentication layer entirely.
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
Secure Access Control ServerApplication
= 4.0= 4.0.1CVSS 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
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 Cisco Secure ACS installationCheck if Cisco Secure ACS is installed on the Windows system by reviewing installed programs in Add or Remove Programs, or check for ACS-related services running on the system.Affected if Cisco Secure ACS 4.x is installed and running
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Identify the installed ACS versionLocate the version information for the Cisco Secure ACS installation, typically accessible through the ACS web interface, the application itself, or Windows Add/Remove Programs entry.Affected if The installed version is 4.0 or 4.0.1 specifically
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Verify the HTTP management interface is enabledCheck if the ACS web-based administration interface is enabled and running. This is typically accessible on ports such as 2002, 2003, or 443 depending on configuration.Affected if The ACS HTTP management interface is enabled and accessible on the network
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Assess network accessibility of management portsDetermine if the ACS management web interface ports are reachable from network segments that are not fully trusted. Review firewall rules and network ACLs controlling access to the ACS server.Affected if The management interface is reachable from untrusted network segments or the internet
The environment is affected if Cisco Secure ACS version 4.0 or 4.0.1 is installed with its HTTP management interface enabled and accessible from network locations that could be manipulated by attackers for IP spoofing.
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 dataRestrict access to the ACS management interface to trusted networks only, implement additional authentication mechanisms such as VPN or certificate-based authentication for admin access, and consider upgrading to a supported version of Cisco ACS with stronger session management.
Fix this in Secure Access Control Server
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 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 $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2006-3226 — 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-2006-3226 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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