CVE-2009-1016
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 · uneditedUnspecified vulnerability in the WebLogic Server component in BEA Product Suite 10.3, 10.0 MP1, 9.2 MP3, 9.1, 9.0, 8.1 SP6, and 7.0 SP7 allows remote authenticated users to affect confidentiality, integrity, and availability, related to IIS. NOTE: the previous information was obtained from the April 2009 CPU. Oracle has not commented on claims from a reliable researcher that this is a stack-based buffer overflow involving an unspecified Server Plug-in and a crafted SSL certificate.
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 confidenceStack-based buffer overflow in WebLogic Server's IIS integration plug-in allows remote authenticated attackers to impact confidentiality, integrity, and availability via a crafted SSL certificate. The vulnerability affects multiple legacy versions (7.0 SP7 through 10.3) of the BEA Product Suite.
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= 7.0= 8.1= 9.0= 9.1= 9.2= 10.0= 10.3CVSS 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
- M
- Authentication
- Single
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:M/Au:S/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.
-
Identify WebLogic Server installation and versionCheck the WebLogic installation directory for version information. Common locations include the BEA_HOME directory or the WebLogic installation root. Look for a version file or check the registry on Windows systems for the installed BEA Product Suite version.Affected if The installed version matches 7.0, 8.1, 9.0, 9.1, 9.2, 10.0, or 10.3
-
Determine if IIS integration plug-in is deployedCheck for the presence of IIS plug-in files used for WebLogic integration. Look for iisproxy.dll, iisproxy.ini, or wlproxy.dll in the IIS scripts or wwwroot directory, or check IIS configuration for WebLogic ISAPI filter mappings.Affected if The IIS-to-WebLogic plug-in is installed and configured on the server
-
Verify SSL is enabled for IIS-WebLogic communicationInspect the IIS plug-in configuration file (iisproxy.ini or similar) for SSL-related settings. Check for parameters like SSL, ssl, or secure connection flags that indicate SSL is being used between IIS and WebLogic.Affected if SSL is enabled in the IIS plug-in configuration for communicating with WebLogic Server
-
Confirm the server handles external SSL certificatesReview the IIS plug-in configuration to determine if it is configured to process SSL certificates from external clients. This is typically indicated by settings that pass client certificates or SSL handshake parameters to WebLogic.Affected if The plug-in is configured to forward SSL certificates from clients to WebLogic
A server is affected if it runs WebLogic versions 7.0, 8.1, 9.0, 9.1, 9.2, 10.0, or 10.3 AND has the IIS integration plug-in deployed with SSL enabled for IIS-to-WebLogic communication.
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 April 2009 CPU patch from Oracle/BEA for affected WebLogic Server versions, or upgrade to a patched release. If immediate patching is not feasible, restrict network access to IIS-to-WebLogic connections and enforce strict authentication.
- Consultation3.0 h
- Implementation6.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-1016 — 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-2009-1016 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