CVE-2006-6697
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 · uneditedCRLF injection vulnerability in webapp/jsp/calendar.jsp in Oracle Portal 10g and earlier, including 9.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via CRLF sequences in the enc parameter.
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 confidenceCRLF injection vulnerability in Oracle Portal 10g and earlier allows remote attackers to inject arbitrary HTTP headers via CRLF sequences in the 'enc' parameter of webapp/jsp/calendar.jsp, enabling HTTP response splitting attacks that can lead to cache poisoning, XSS, and session hijacking.
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= 9.0.2= 10gCVSS 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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Identify Oracle Portal installation and versionLocate Oracle Application Server Portal installation directory and check version. On UNIX systems, common paths include $ORACLE_HOME/portal or /opt/oracle/portal. Check for version files in the installation directory or run: $ORACLE_HOME/opmn/bin/opmnctl status -l (for Oracle 10g)Affected if Installed version is 9.0.2 or 10g (any 10.x release)
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Verify calendar.jsp component existsCheck for the existence of the vulnerable JSP file: webapp/jsp/calendar.jsp within the Oracle Portal web application directory. Common path: $ORACLE_HOME/portal/objects/portal/webapp/jsp/calendar.jsp or within the deployed EAR/WAR filesAffected if The file webapp/jsp/calendar.jsp exists in the Oracle Portal web application directory
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Confirm web application is accessibleVerify the Oracle Portal web application is running and accessible. Check if the /portal/ or /pls/ endpoints respond. Query: http://<host>:<port>/portal/ or check Oracle HTTP Server statusAffected if Oracle Portal web application is running and accepting HTTP requests
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Test enc parameter for CRLF injectionSend a test HTTP request with CRLF sequences in the 'enc' parameter. Example: GET /portal/jsp/calendar.jsp?enc=test%0D%0AHeader:+Value HTTP/1.1. Analyze response headers for evidence of injected headers or response splittingAffected if The application accepts and reflects CRLF sequences in the 'enc' parameter, allowing injection of arbitrary HTTP headers
If Oracle Portal version 9.0.2 or 10g is installed, the calendar.jsp component exists, and the 'enc' parameter accepts CRLF sequences, the environment is vulnerable to CVE-2006-6697.
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 or neutralize CRLF sequences in the 'enc' parameter, or deploy a WAF to block such sequences; upgrade to a patched Oracle Portal version if available.
- 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-2006-6697 — 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-2006-6697 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
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