CVE-2023-51638
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 · uneditedAllegra Hard-coded Credentials Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Allegra. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of a database. The issue results from the use of a hardcoded password. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-22360.
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 confidenceAllegra contains a hardcoded password in its database configuration that allows remote attackers to bypass authentication without any credentials. An attacker can exploit this by connecting to the affected system and using the known hardcoded password to gain unauthorized access.
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< 7.5.1CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 Allegra installation and versionLocate the Allegra application and determine its installed version by checking application metadata, installation directory, or version file. Common locations include the application root folder, a versioninfo file, or the system's installed programs list.Affected if The installed version is below 7.5.1
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Locate database configuration fileFind the database configuration file for Allegra. Typical paths may include the application config directory, conf folder, or alongside application files. Look for files named database.properties, db.config, or similar database connection configuration files.Affected if A database configuration file exists and contains connection settings
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Inspect configuration for hardcoded credentialsOpen the database configuration file and examine the password field. Check if the password value is hardcoded (a static string literal) rather than referencing an external source like environment variables, a secrets manager, or a secured vault.Affected if The password field contains a static, hardcoded string value
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Check if password is default or knownReview the password value in the configuration. A hardcoded password that appears to be a default value, common password, or follows a predictable pattern may indicate this vulnerability.Affected if A hardcoded password is present in the database configuration
The environment is affected if Allegra version is below 7.5.1 and the database configuration file contains a hardcoded password rather than dynamically-resolved credentials.
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.
dbcve · scoped7.5.1
Replace the hardcoded database password with a strong, dynamically-generated credential stored securely (e.g., environment variables, secrets manager) and implement proper authentication mechanisms.
7.5.1
- Upgrade Allegra to version 7.5.1 or later to resolve the hard-coded credentials vulnerability
- After upgrading, verify that the default credentials have been changed from any hardcoded values
- Ensure database configuration uses unique, strong passwords rather than default or embedded credentials
- Review user accounts and reset all passwords as a precautionary measure
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2023-51638 — 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-2023-51638 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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- Version or environment caveats, and links to real fixes
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