CVE-2012-5353
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 · uneditedEduserv OpenAthens SP 2.0 for Java allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack."
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 confidenceEduserv OpenAthens SP 2.0 for Java fails to validate that SAML assertions contain a valid Signature element. Attackers can craft SAML responses with missing or removed signatures, and the vulnerable software will still process the assertion as legitimate, allowing authentication bypass.
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= 2.0CVSS 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
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:M/Au:N/C:P/I:P/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.
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Identify OpenAthens SP installationLocate the Eduserv OpenAthens SP 2.0 for Java installation directory and confirm the version number from JAR files, manifest, or version documentationAffected if The installed version is Eduserv OpenAthens SP version 2.0 exactly
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Determine if SAML processing is enabledCheck the SP configuration files for SAML service provider settings that enable processing of incoming SAML assertionsAffected if SAML assertion processing is enabled and the SP accepts assertions from IdPs
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Locate SAML configurationFind the SAML configuration file (typically an XML file or properties file controlling SAML behavior) that defines how the SP handles incoming assertionsAffected if A SAML configuration file exists and is actively used by the SP
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Check signature validation settingsInspect the SAML configuration for settings controlling signature verification - look for options like 'requireSignature', 'verifySignature', or similar flags that control whether signatures are checkedAffected if The configuration does not explicitly require signature validation, or the signature verification setting is disabled or missing
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Test SAML assertion processing behaviorIf possible, send a test SAML response without a Signature element to the SP endpoint and observe whether the assertion is accepted or rejectedAffected if The SP accepts and processes SAML assertions that lack a Signature element
A user is affected if they are running Eduserv OpenAthens SP version 2.0 and the SP is configured to accept SAML assertions without requiring valid XML signatures.
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 dataConfigure the SP to require and verify XML signatures on all incoming SAML assertions. Ensure the SAML library validates both the presence and cryptographic correctness of signatures before accepting any assertion.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-5353 — 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-2012-5353 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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