CVE-2014-5137
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 · uneditedInnovative Interfaces Sierra Library Services Platform 1.2_3 provides different responses for login request depending on whether the user account exists, which allows remote attackers to enumerate account names via a series of login requests, possibly related to the Webpac Pro submodule.
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 confidenceThe Sierra Library Services Platform 1.2_3 returns different HTTP responses or error messages during login authentication depending on whether the supplied username exists in the system. This allows remote attackers to determine valid usernames through repeated login attempts with different username values.
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= 1.2_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
- 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.
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Identify Sierra Library Services Platform installationCheck if your web application or library system is running Sierra software. Look for Sierra-specific headers, cookies, or application identifiers in HTTP responses.Affected if The system is running Sierra Library Services Platform version 1.2_3
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Locate the login authentication endpointIdentify the login page or authentication endpoint in your Sierra system. This is typically found at paths like /patroninfo, /auth, or similar login-related URLs.Affected if A login endpoint exists that accepts username and password parameters
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Test login response with non-existent usernameSubmit a login attempt with a clearly invalid username (e.g., 'nonexistentuser123') and a random password. Record the exact HTTP status code and error message returned.Affected if The system returns an error message or status code indicating the username does not exist
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Test login response with valid username but wrong passwordSubmit a login attempt using a known-valid username (or one you suspect exists) with an incorrect password. Record the exact HTTP status code and error message returned.Affected if The system returns an error message or status code indicating the password is incorrect
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Compare error responses for username enumeration vulnerabilityCompare the error messages and HTTP status codes from steps 3 and 4. Check if they differ in wording, timing, or status codes.Affected if The responses differ between non-existent usernames and valid usernames with wrong passwords, allowing an attacker to determine which usernames are valid in the system
Your environment is affected if running Sierra Library Services Platform 1.2_3 and the login returns different error messages for invalid usernames versus invalid passwords, enabling user enumeration.
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 dataModify the authentication logic to return identical error messages and HTTP status codes for both invalid usernames and invalid passwords, preventing user enumeration.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-5137 — 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-2014-5137 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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