dbcve.org
AllegraApplication · Alltena

CVE-2024-5579

HIGH · 7.2 CVSS v3.0 Published 2024-11-22
Fix available
A fix is available. Upgrade to 7.5.2 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

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 · unedited
Allegra renderFieldMatch Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Allegra. Authentication is required to exploit this vulnerability. The specific flaw exists within the renderFieldMatch method. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of LOCAL SERVICE. Was ZDI-CAN-23451.

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 confidence

This is a deserialization vulnerability in Allegra's renderFieldMatch method where authenticated attackers can exploit the lack of proper validation on user-supplied data to deserialize untrusted data, achieving remote code execution in the context of LOCAL SERVICE.

MitigationApply vendor patches when available; in the interim, restrict access to the affected renderFieldMatch functionality to trusted users only and monitor for suspicious deserialization activity.

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
AllegraApplication
Affected:< 7.5.2

CVSS 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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Allegra version
    Check the Allegra application UI (typically in Help > About) or check the version file in the installation directory if accessible
    Affected if The installed version is any version before 7.5.2 (e.g., 7.5.1, 7.5.0, earlier releases)
  2. Locate the renderFieldMatch method
    Search the Allegra application files for the renderFieldMatch function/method implementation; check in web application source code or plugins if accessible
    Affected if The renderFieldMatch method exists in the codebase and handles user-supplied data without proper validation
  3. Verify if renderFieldMatch is exposed via web interface
    Check application routing/configuration for endpoints that invoke renderFieldMatch; look for HTTP request handlers that call this method
    Affected if The renderFieldMatch method is accessible through web-facing endpoints without additional access controls
  4. Check authentication requirements for affected functionality
    Review the authentication and authorization configuration for the renderFieldMatch functionality; examine session management settings
    Affected if The renderFieldMatch endpoint allows deserialization of data from authenticated users without sanitization, or allows lower-privileged authenticated users to access it
  5. Inspect deserialization handling in renderFieldMatch
    Examine the code paths within renderFieldMatch that process user input for deserialization operations; check for use of unsafe deserialization functions
    Affected if The code accepts and deserializes user-supplied data without validating the data source or type before deserialization

You are affected if your Allegra installation is any version below 7.5.2 AND the renderFieldMatch method is accessible to authenticated users in your environment.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 7.5.2 or later
Fixed in 7.5.2
Interim mitigation

Apply vendor patches when available; in the interim, restrict access to the affected renderFieldMatch functionality to trusted users only and monitor for suspicious deserialization activity.

Recommended fix High confidence

7.5.2 or later

  1. Back up your Allegra database and configuration files before proceeding with any upgrade
  2. Download Allegra version 7.5.2 or later from the official vendor (Alltena)
  3. Follow the vendor's documented upgrade procedure for your specific deployment method (e.g., installer, manual update, or package manager)
  4. After upgrading, verify the renderFieldMatch method is no longer accessible to unauthenticated or low-privilege users
  5. Test that Allegra functionality remains intact after the upgrade
  6. Monitor vendor security advisories for any subsequent updates

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Allegra Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-5579 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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