CVE-2023-31186
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 · uneditedAvaya IX Workforce Engagement v15.2.7.1195 - User Enumeration - Observable Response Discrepancy
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 confidenceAvaya IX Workforce Engagement version 15.2.7.1195 contains a user enumeration vulnerability where the application returns distinguishable responses when valid versus invalid usernames are submitted, allowing attackers to identify valid user accounts through the Observable Response Discrepancy pattern.
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= 15.2.7.1195CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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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Verify the installed version of Avaya IX Workforce EngagementLocate the software version information through the application admin interface, system information page, or installed programs list. This is typically found under Help > About or in the system registry under the Avaya installation directory.Affected if The installed version is exactly 15.2.7.1195 (the only affected version listed).
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Identify authentication endpointsReview web application traffic or consult documentation to locate login and password reset endpoints that accept usernames as input.Affected if The application has endpoints that accept username input for authentication purposes.
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Test response for a likely valid usernameSubmit a username that is known or suspected to be valid (such as a common administrator account like admin, administrator, or a known employee account) to the login or password recovery endpoint and capture the HTTP response code and message.Affected if The response contains specific information that differs from invalid username responses (such as prompting for password vs stating the account does not exist).
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Test response for an invalid usernameSubmit a clearly invalid username (such as a random string like 'xyznonexistent123') to the same endpoint and capture the HTTP response code and message.Affected if The response is measurably different from the valid username response (for example, explicitly stating the username does not exist versus prompting for password).
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Compare responses for discrepancyCompare both responses side by side noting differences in error messages, response codes, timing, or any other distinguishable characteristic that could reveal username validity.Affected if The application returns different messages, error codes, or behaviors that allow an attacker to determine whether a username exists in the system.
You are affected if the installed version is 15.2.7.1195 AND the authentication endpoint returns distinguishable responses between valid and invalid usernames, allowing an attacker to enumerate existing user accounts.
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 consistent response handling for authentication-related endpoints regardless of username validity, and consider adding rate limiting or account lockout mechanisms to deter automated enumeration attempts.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-31186 — 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-2023-31186 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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