CVE-2009-2000
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 Authentication component in Oracle Database 11.1.0.7 allows remote attackers to affect confidentiality via unknown vectors.
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 confidenceUnspecified vulnerability in the Authentication component of Oracle Database 11.1.0.7 allows remote attackers to potentially access sensitive information through unknown attack vectors. The exact method of exploitation is not disclosed.
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= 11.1.0.7CVSS 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 Oracle Database installation and versionRun 'sqlplus / as sysdba' and execute 'SELECT VERSION FROM V$INSTANCE;' or check the Oracle inventory via 'opatch lsinventory'Affected if The version returned is exactly 11.1.0.7
-
Confirm Oracle Database Server editionExecute 'SELECT EDITION FROM V$INSTANCE;' in SQL*Plus connected as SYSDBAAffected if The database is any standard edition of Oracle Database Server 11.1.0.7 (the CVE applies to this specific version regardless of edition)
-
Check if Oracle Listener is accepting remote connectionsRun 'lsnrctl status' and examine the HOST parameter in listener.ora, or run 'tnsping <service_name>' from a remote hostAffected if The listener is configured to accept remote TCP connections (ADDRESS with HOST pointing to a network interface accessible remotely)
-
Verify authentication services are network-exposedCheck listener.ora for any SERVICE_NAME entries and confirm the database is registered with the listener via 'lsnrctl services'Affected if The database service is registered with a remotely-accessible listener, meaning the Authentication component can be reached over the network
A user is affected if they have Oracle Database Server version 11.1.0.7 running with the network listener enabled and accepting remote connections, as this exposes the Authentication component to potential exploitation.
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 Oracle Critical Patch Update (CPU) patches for Oracle Database 11gR1, or upgrade to a supported Oracle Database version as Oracle 11.1.0.7 is no longer under standard support.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-2000 — 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-2009-2000 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