CVE-2006-0411
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 · uneditedclaro_init_local.inc.php in Claroline 1.7.2 uses guessable session cookies (MD5 hash of connection time), which allows remote attackers to hijack sessions and possibly gain administrative privileges.
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 confidenceclaro_init_local.inc.php in Claroline 1.7.2 implements session cookies using a predictable mechanism - an MD5 hash of the connection timestamp. Since MD5 is cryptographically broken and timestamps are guessable, attackers can compute valid session cookies and hijack user sessions, including administrative accounts.
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= 1.7.2CVSS 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
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/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.
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Identify Claroline installation versionLocate the version file or index page in your Claroline installation and determine the installed version numberAffected if Version is exactly 1.7.2
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Locate claro_init_local.inc.phpSearch the Claroline web root directory for the file claro_init_local.inc.phpAffected if The file exists in the installation
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Inspect session cookie generation codeOpen claro_init_local.inc.php and search for patterns indicating MD5 hash generation combined with timestamps or time functions for session cookie creationAffected if The code shows session cookies are generated using MD5() of timestamps or similar predictable values
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Check for predictable session IDsExamine the authentication or session initialization code for any use of time-based values in session ID generationAffected if Session IDs rely on time values or other predictable input rather than cryptographic randomness
A user is affected if they are running Claroline version 1.7.2 with the vulnerable claro_init_local.inc.php file that generates session cookies using MD5 hashes of timestamps.
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 dataReplace the weak session cookie mechanism with cryptographically secure session management: use random session IDs (e.g., from /dev/urandom), implement proper session storage, set secure cookie flags (HttpOnly, Secure), and regenerate session IDs on authentication.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2006-0411 — 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-2006-0411 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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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